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## Description:
The mission of Apache Beam is the creation and maintenance of software related
to a unified programming model for both batch and streaming data processing,
enabling efficient execution across diverse distributed execution engines and
providing extensibility points for connecting to different technologies and
user communities.
## Project Status:
Current project status: ongoing
Issues for the board: none
## Membership Data:
Apache Beam was founded 2016-12-20 (7 years ago)
There are currently 94 committers and 26 PMC members in this project.
The Committer-to-PMC ratio is roughly 3:1.
Community changes since last report:
- Valentyn Tymofieiev was added to the PMC on 2023-10-02
- Robert Burke was added to the PMC on 2023-10-02
- Alex Van Boxel was added to the PMC on 2023-10-02
- Sam Whittle was added as committer on 2023-10-09
- Byron Ellis was added as a committer on 2023-10-13
## Project Activity:
Recent releases:
- 2.53.0 was released on 2024-01-05.
- 2.52.0 was released on 2023-11-17.
- 2.51.0 was released on 2023-10-11.
Highlighted technical developments
- Beam YAML (a YAML format for writing a pipeline) has its
stable release!
- Lots of focus on Beam ML, a collection of utility transforms
that handle loading models, performing inference, and increasingly
pre- and post-processing steps specific to ML workloads.
- Running multi-language pipelines locally no longer requires docker. This
addresses pain points for users of operating systems with less
great docker support, as well as corporate policies that
forbid it.
- Avro dependency finally removed from the core SDK, fixing dependency
conflicts that plagued users.
- Explicit java 21 support added to our released artifacts.
- Deprecated Euphoria DSL due to being obsoleted by Beam main SDK
- Finished migrating all of Jenkins jobs to GitHub actions
- Upgraded to golang 1.21.5
Highlights of community activities:
- Beam College 2023 (https://beamcollege.dev/step/2023/) took place from
October 23 - November 3, 2023 as an online training event. More than 800
attendees joined this season It contains three tracks:
- Dive into data processing
- Hands-on Apache Beam
- Graduate to streaming.
- Beam Blogs have been active and varied, for example:
- Two part series on scaling up Beam on Flink
(https://beam.apache.org/blog/apache-beam-flink-and-kubernetes/)
- A "Contributor spotlight" [blog]
[blog](https://beam.apache.org/blog/contributor-spotlight-johanna-ojeling/)
## Community Health:
Variations in community metrics are within normal variations,
especially considering the season.
No report was submitted.
## Description: The mission of Apache Beam is the creation and maintenance of software related to a unified programming model for both batch and streaming data processing, enabling efficient execution across diverse distributed execution engines and providing extensibility points for connecting to different technologies and user communities. ## Project Status: Current project status: Ongoing Issues for the board: none ## Membership Data: Apache Beam was founded 2016-12-20 (7 years ago) There are currently 92 committers and 23 PMC members in this project. The Committer-to-PMC ratio is approximately 9:2. Community changes, past quarter: - No new PMC members. Last addition was Jan Lukavský on 2023-02-14. - Ahmed Abualsaud was added as committer on 2023-08-24 ## Project Activity: Top-level technical notes to show direction of the project: - The "Prism Runner", mentioned in prior reports, is now complete enough and the default for the Go SDK. Next up is to make it the best local runner for other SDKs to test multi-language pipelines (which are expected to be the norm, not the exception, as major libraries are built in one language and used in all languages). - Multi-language pipelines continue to get easier and more transparent to author, this time with a new automatically launched and managed subprocess that can serve multiple "external" transforms. - BigTable Change Streams support was added. While it is just one connector, it is notable for being part of an increased interest in streaming applications, in which most storage may be shipping changes around, including those not traditionally considered "streaming" systems. - ML conveniences continue to be added to Beam Python, such as: - hugging face model handler - Vertex AI model handler - new "MLTransform" for pre/postprocessing, complementing RunInference - prebuilding docker containers to bundle large dependencies - All Beam released container images are now multi-arch images that support both x86 and ARM CPU architectures. - Go SDK requires Go 1.2.0 to build - SparkRunner now defaults to Spark 3.2.2 Community: - Beam Summit 2023 was a huge success. Beam Summit 2023 <https://beamsummit.org/> was the eighth and the biggest edition of the flagship conference for the Apache Beam community. Beam Summit 2023 took place on June 13 - 15, 2023 as an in-person event, bringing the community together in NYC, and on July 18-20, 2023 as a virtual edition. [impact report] [impact report] https://lists.apache.org/thread/l7hxz8wpl9rqt8jotv64620sl2zmdx2p Recent releases: - 2.50.0 was released on 2023-08-30. - 2.49.0 was released on 2023-07-17. Our 6 week release cadence is going quite well. Increased release automation has reduced the time from cutting a release branch to finalizing a release. ## Community Health: Issues and code traffic are within normal variation, aka flat. No growth or shrinking trends. Community faced email delivery issues, causing friction when communicating on the email lists, and making project activities (e.g. release validation) difficult to coordinate. Even though issues were addressed, we are not sure if we will run into these issues again because there was not a permanent fix. (Examples: https://issues.apache.org/jira/browse/INFRA-24574 https://issues.apache.org/jira/browse/INFRA-24790 https://issues.apache.org/jira/browse/INFRA-24872)
## Description: The mission of Apache Beam is the creation and maintenance of software related to a unified programming model for both batch and streaming data processing, enabling efficient execution across diverse distributed execution engines and providing extensibility points for connecting to different technologies and user communities. ## Project Status: Current project status: Ongoing Issues for the board: none ## Membership Data: Apache Beam was founded 2016-12-20 (6 years ago) There are currently 91 committers and 23 PMC members in this project. The Committer-to-PMC ratio is roughly 9:2. Community changes, past quarter: - No new PMC members. Last addition was Jan Lukavský on 2023-02-14. - Anand Inguva was added as committer on 2023-04-21. - Damon Douglas was added as committer on 2023-04-21. ## Project Activity: - 2.48.0 was released on 2023-06-03. - 2.47.0 was released on 2023-05-10. Highlights of community activities: - Beam Summit 2023 (https://beamsummit.org/) was just held June 13-15. Summit reached 500+ registrations. This is the 6th iteration of this annual community-organized summit. - Interactive Beam Playground updated with lots of new features (https://lists.apache.org/thread/15phr0h5q007pjgfotwqcvdr7hyotks1). - Google Cloud Skills Boost launched a Beam "quest" (https://www.cloudskillsboost.google/quests/310), paid educational content where users earn a completion "badge". Some technical highlights relevant to community development: - Python 3.11 support added - Flink 1.16.x support added - The Go SDK is now very nearly at feature parity with Python and Java. The gaps are small enough that they are more than compensated for by the qualitative differences between the SDKs, and the existing gaps and bugs in each. It has arrived! - "Experimental" annotation cleanup: the annotation and concept have been removed from Beam to avoid the misperception of code as "not ready". They were there to signal that something might change or disappear, but in practice we rarely did so and we almost always neglected to "graduate" features from this status. We will just make case-by-case judgment. - A new local Beam runner called the "Prism Runner" is authored in Go and poised to become the definitive local portable runner, serving as a proper reference for the Beam model. Rapid developments in Beam have resulted in a major gap in this area, with no runner supporting every corner of the model so users could reliably test their work prior to running on a cloud service. ## Community Health: Traffic on various communication channels is roughly stable. The number and variety of attendees at the Beam Summit shows a very healthy diversity of stakeholders in Beam and interest in the project's development. There were many talks of unexpected and interesting work that took place outside the project's communication channels and code repository. Creating an ecosystem bigger than itself is a good sign, but also some of these may be opportunities to invite work to merge into Beam itself to grow committers and PMC members from those stakeholders.
## Description: The mission of Apache Beam is the creation and maintenance of software related to a unified programming model for both batch and streaming data processing, enabling efficient execution across diverse distributed execution engines and providing extensibility points for connecting to different technologies and user communities. ## Issues: There are no issues requiring board attention. ## Membership Data: Apache Beam was founded 2016-12-20 (6 years ago) There are currently 90 committers and 24 PMC members in this project. The Committer-to-PMC ratio is roughly 9:2. Community changes, past quarter: - Jan Lukavský was added to the PMC on 2023-02-14 - No new committers. Last addition was Yi Hu on 2022-11-05. ## Project Activity: - Google Summer of Code processes are kicked off, and there are a few project proposals. - Beam Summit 2023 will be held in New York, and the CFP recently closed. Recent releases: - 2.46.0 was released on 2023-03-10 - 2.45.0 was released on 2023-02-15 ## Community Health: There is an across the board 20-30% reduction in many measures of community health traffic. This is not a cause for concern (yet). One could speculate about how global events and major disruptions in big tech could influence activity over this period.
## Description: The mission of Apache Beam is the creation and maintenance of software related to a unified programming model for both batch and streaming data processing, enabling efficient execution across diverse distributed execution engines and providing extensibility points for connecting to different technologies and user communities. ## Issues: There are no issues requiring board attention. ## Membership Data: Apache Beam was founded 2016-12-20 (6 years ago) There are currently 90 committers and 23 PMC members in this project. The Committer-to-PMC ratio is roughly 9:2. Community changes, past quarter: - No new PMC members. Last addition was Chamikara Madhusanka Jayalath on 2021-01-20. - Ritesh Ghorse was added as committer on 2022-11-02 - Yi Hu was added as committer on 2022-11-05 ## Project Activity: Highlights of community activities: - We started planning the Beam Summit for June 13-15th, 2023 in NYC. - New webpage on ML/RunInference - Java Multi-language pipelines support including support for using Python RunInference from Java SDK. - We have been using GitHub Issues for a while now, and community response is overall positive. - There is a trend of many IO connectors being made into "schema transforms" which means they have a cross-language schema and become more language-SDK agnostic. It signals the continued trend of Beam as a language-independent framework to be used with any big data processin gengine. Recent releases: - 2.44.0 was released on 2023-01-13. - 2.43.0 was released on 2022-11-17. - 2.42.0 was released on 2022-10-16. ## Community Health: The community on the mailing list and in code seems to be holding steady. We have had departures of very active committers but also addition of new ones. If you aren't growing you are shrinking! Change is the only constant! :-)
No report was submitted.
## Description: The mission of Apache Beam is the creation and maintenance of software related to a unified programming model for both batch and streaming data processing, enabling efficient execution across diverse distributed execution engines and providing extensibility points for connecting to different technologies and user communities. ## Issues: There are no issues requiring board attention. ## Membership Data: Apache Beam was founded 2016-12-20 (6 years ago) There are currently 88 committers and 23 PMC members in this project. The Committer-to-PMC ratio is roughly 9:2. Community changes, past quarter: - No new PMC members. Last addition was Chamikara Madhusanka Jayalath on 2021-01-20. - John Casey was added as committer on 2022-07-27 - Steve Niemitz was added as committer on 2022-07-19 ## Project Activity: ### Recent releases - 2.41.0 was released on 2022-08-23. ### Integrations and deprecations - Support for Spark 2.4.x is deprecated and will be dropped with the release of Beam 2.44.0 or soon after. - The modules amazon-web-services and kinesis for AWS Java SDK v1 are deprecated in favor of amazon-web-services2 and will be eventually removed after a few Beam releases ### Events - Beam Summit held as a hybrid event in Austin, TX, USA with about 200 in-person attendees and 2000+ online attendees. ## Community Health: Issues, pull requests, and dev list all holding at the roughly the same activity level. We have additional metrics at https://metrics.beam.apache.org/d/code_velocity/ which show some improvements in "time to first response" on pull requests.
## Description: The mission of Apache Beam is the creation and maintenance of software related to a unified programming model for both batch and streaming data processing, enabling efficient execution across diverse distributed execution engines and providing extensibility points for connecting to different technologies and user communities. ## Issues: There are no issues requiring board attention. ## Membership Data: Apache Beam was founded 2016-12-20 (6 years ago) There are currently 86 committers and 23 PMC members in this project. The Committer-to-PMC ratio is roughly 9:2. Community changes, past quarter: - No new PMC members. Last addition was Chamikara Madhusanka Jayalath on 2021-01-20. - Danny McCormick was added as committer on 2022-06-17 - Jack McCluskey was added as committer on 2022-06-17 - Ke Wu was added as committer on 2022-05-27 ## Project Activity: ### Recent releases: - 2.40.0 was released on 2022-06-28. - 2.39.0 was released on 2022-05-26. - 2.38.0 was released on 2022-04-20. We continue to average one release every six weeks, per our intention. To keep the number of changes in each release roughly comparable, we cut a branch every six weeks regardless of how long it takes to finalize each release. ### Misc Highlights - We have completed our migration from Jira to GitHub Issues. - The TypeScript SDK has been merged to the repository. - New RunInference API, a framework agnostic transform for ML inference, supporting PyTorch and Sckit-learn. - Beam Summit will take place July 18-20. There are 180 in-person registrations and 2100 online registrations. ### Go SDK - Go 1.18 required to support generics. - Watermark estimation supported. - Pipeline drain support added. - Generic function registration for optimizing DoFn execution. - TextIO moved to Splittable DoFn. - User can author self-checkpointing Splittable DoFns to read from streaming sources. ### Runner ecosystem - Flink 1.14.x support added. - Beam 2.38.0 will be the last minor release to support Flink 1.11 - Scala 2.12 support added for Flink, because most of the libraries support version 2.12 onwards. - Support for Spark 2.4.x is deprecated and will be dropped with the release of Beam 2.44.0 or soon after. - Interactive Beam supports remotely executing Flink pipelines on Google Cloud Dataproc via JupyterLab extension. - Support for impersonation credentials added to dataflow runner in the Java and Python SDK. - Two new Python-native runners proposed and under way! Dask and Ray. ### IO ecosystem and other integrations - Significant work on CdapIO which gives access to a whole ecosystem of connectors maintained by CDAP. - Support for Elasticsearch 8.x - Upgrade to ZetaSQL 2022.04.1 - More IO standard documents proposed and reviewed (https://s.apache.org/beam-io-api-standard-documentation & https://s.apache.org/beam-io-api-standard). - A new IO for Neo4j graph databases was added with the ability to update nodes and relationships using UNWIND statements and to read data using cypher statements with parameters. - Connectors for AWS v2 APIs reached parity, and additionally support for Kinesis writes and sharded record aggregation, plus fixes to connectors for S3, DynamoDB, and SQS. The previous modules for AWS v1 and Kinesis are now deprecated. - The march of progress toward eliminating null pointer exceptions in all code proceeding to include much of KafkaIO, BigQueryIO, and the core SDK, but not before high profile NPEs had caused major user problems. - ExternalPythonTransform API added for easily invoking Python transforms from Java. Previously, multi-language pipelines were focused on making mature Java connectors available to other languages. This one, conversely, makes ML and scientific transforms available in Java. - JmsIO gains dynamic writes and more flexible input handling. - Upgraded to Hive 3.1.3 for HCatalogIO. Users can still provide their own version of Hive. - Implemented Apache PulsarIO. ### Other developments worth noting - Early projection pushdown optimizer to the Java SDK. Somewhat limited in which pipelines it applies to, but proving the concept. - Pandas compatibility continues to improve, specifically adding unstack, stack, and pivot. ## Community Health: Both dev@ and user@ traffic declined during this period, but the community is still very active. The overall throughput of pull requests is nearly identical. With the Go SDK reaching maturity we are somewhat hopeful that we will reach a new community of users that previously had nothing comparable available to them.
No report was submitted.
## Description: The mission of Apache Beam is the creation and maintenance of software related to a unified programming model for both batch and streaming data processing, enabling efficient execution across diverse distributed execution engines and providing extensibility points for connecting to different technologies and user communities. ## Issues: There are no issues requiring board attention. ## Membership Data: Apache Beam was founded 2016-12-20 (5 years ago) There are currently 82 committers and 23 PMC members in this project. The Committer-to-PMC ratio is roughly 4:1. Community changes, past quarter: - No new PMC members. Last addition was Chamikara Madhusanka Jayalath on 2021-01-20. - Kiley Sok was added as committer on 2022-01-27 - Moritz Mack was added as committer on 2022-03-04 ## Project Activity: ### Recent releases - 2.37.0 was released on 2022-03-04. - 2.36.0 was released on 2022-02-07. - 2.35.0 was released on 2021-12-29. We continue to average one release every six weeks, per our intention. To keep the number of changes in each release roughly comparable, we cut a branch every six weeks regardless of how long it takes to finalize each release. ### log4j While the core of Apache Beam does not depend on log4j, many transitive dependencies do, since Beam integrates with "every" storage system, at least in theory. Our community really came together around this very quickly. - Upgraded test setup to test non-vulnerable recent versions of log4j2 - Upgrade transitive dependencies to non-vulnerable versions - Upgrade to Gradle 7, a multi-week, multi-person effort (https://lists.apache.org/thread/ovn4f7ymg6dcy1yn7pdljh4v094yjyrg). ### Ecosystems - Added Java 17 support and testing - Added Python 3.9 support and testing - Added pandas 1.4 support and testing Previously such changes were difficult one-off endeavors, but they are becoming part of the project's routine now. ### Multi-language Parity across languages continues to improve, with Go and Python adding more core model features to match our first language, Java. Most notably, though, Beam's central technology - a language-and-engine agnostic model of big data computation - has yielded rapid progress in multiple arenas. - Go SDK connectors. By leveraging the existing Java-based connectors, Go SDK gained access to JDBC, Debezium, SQL, BigQuery, and Kafka. - TypeScript / JavaScript SDK! At a new-year hackathon, about a half dozen contributors (a few experienced and the rest quite new) built a working SDK for TypeScript in a single week! (https://lists.apache.org/thread/orxnz7p8mg22ys92dbo034g9335oc2sl) ### Ease of onboarding - Beam Playground, a new online interface for getting to know Beam (https://lists.apache.org/thread/r088lzjnk4khfrcp8m0q1oymw1mmtmo0) - Starter repositories, template repositories instead of maven archetypes or less-discoverable subdirectories of our main repo (https://lists.apache.org/thread/x16ykz3lrtc48sgo4m7sxgjlyp1y1ffl) ### Other notable developments and discussions - IO standards for APIs, testing, and documentation. This should help the community and software grow while having some regularity and reliability for users (https://lists.apache.org/thread/pl13km8y6xo448q9jbrftqblodks831w) - Kafka Streams runner proposed (https://lists.apache.org/thread/sp9yvbxyfn4mrbmj91d2trhk8hs7ln7n) - Automated reviewer assignment. Like many OSS projects, we have a review latency and backlog problem. Previous attempts at this were not successful, but we still need to keep trying things to solve the problem. (https://lists.apache.org/thread/6xg35sw72k8k1rj4od86q9wrsol8p7dc) - Migrating from Jira to GitHub issues now has consensus and is in the planning stage (https://lists.apache.org/thread/zh2t7ql83z45syqj4yd75dgstlo14nmp) ### Beam Summit Beam Summit 2022 is accepting submissions: https://lists.apache.org/thread/js0vfljlkvs9l1k1knpwsbxw8obsl56f ## Community Health: We have seen an influx of new contributors, with a lot of new ideas mentioned in "project activity". A lot of the ideas are specifically around improving community health. Mailing lists were a bit quieter this round, but probably just due to the winter holidays. There has been very good transparency and discussion on the lists on all major developments, and there have been quite a few of them.
## Description: The mission of Apache Beam is the creation and maintenance of software related to a unified programming model for both batch and streaming data processing, enabling efficient execution across diverse distributed execution engines and providing extensibility points for connecting to different technologies and user communities. ## Issues: There are no issues requiring board attention. ## Membership Data: Apache Beam was founded 2016-12-20 (5 years ago) There are currently 80 committers and 23 PMC members in this project. The Committer-to-PMC ratio is roughly 4:1. Community changes, past quarter: - No new PMC members. Last addition was Chamikara Madhusanka Jayalath on 2021-01-20. - No new committers. Last addition was Emily Ye on 2021-07-22. ## Project Activity: Releases: - 2.34.0 was released on 2021-11-11 Notable technical developments: - The Beam Java API for inserting SQL into a pipeline is no longer "experimental". This has been available for users for many years, but this represents a declaration of confidence to our users. - New support for `pip install apache-beam[dataframe]` to track the pandas versions that we have compatibility with. - Experimental support for the new BigQuery Storage Read API, which should be a simpler and more efficient choice for many use cases. Detailed technical change log at https://github.com/apache/beam/blob/master/CHANGES.md Notable discussions: - There seems to be consensus to migrate from Jira to GitHub Issues, with the primary goal being familiarity for new and/or casual contributors. The technical effort involved is not yet clear. [issues] - An update to schema-aware transforms, to use this system for even more of Beam. These are transforms that have a known schema for their configuration parameters and also have schemas for their input and output (vs just passing blobs of bytes). The increased development and adoption of this should be good for debugging and performance. [schema] [issues] https://lists.apache.org/thread/q5nbwxqvfkzlz664c4kchzkbj26c3r89 [schema] https://lists.apache.org/thread/8yxt3bo5h6xs4vqhvch7mrpln04sjtqj ## Community Health: Community metrics show nothing remarkable. A typical dip in the later part of the year and otherwise largely stable.
## Description: The mission of Apache Beam is the creation and maintenance of software related to a unified programming model for both batch and streaming data processing, enabling efficient execution across diverse distributed execution engines and providing extensibility points for connecting to different technologies and user communities. ## Issues: There are no issues requiring board attention. ## Membership Data: Apache Beam was founded 2016-12-20 (5 years ago) There are currently 80 committers and 23 PMC members in this project. The Committer-to-PMC ratio is roughly 4:1. Community changes, past quarter: - No new PMC members. Last addition was Chamikara Madhusanka Jayalath on 2021-01-20. - No new committers. Last addition was Emily Ye on 2021-07-22. ## Project Activity: Recent releases: - 2.33.0 was released on 2021-10-07 (6 weeks from 2.32.0) - 2.32.0 was released on 2021-08-26 (7 weeks from 2.31.0) - 2.31.0 was released on 2021-07-08 (4 weeks from 2.30.0) Notable developments: - Beam's Go SDK exits "experimental" status, bringing in a third ecosystem and community! https://beam.apache.org/blog/go-sdk-release/ - Beam's Dataframe API (mentioned last report) also has graduated out of "experimental" status. - Beam Summit was held online August 4-6, 2021. https://2021.beamsummit.org/ 850 live attendees from 50+ countries. 4.58/5 Average Event Rating Interesting functional improvements to Beam: - Initial support for pushing projections into sources when programming using Beam's schema-driven transforms, for some big performance gains - Google Cloud Firestore connector - Beam SQL supports `CREATE FUNCTION` syntax from Calcite - New append-only variant of ElasticSearch sink - Partitioned reads over JDBC - Improved Beam schema / Avro schema / JDBC schema interoperability ## Community Health: Community metrics are about the same, in terms of dev list, user list, GitHub pull requests, and Jira. There is a statistical uptick in emails to the dev list, but this is due to automated alerts about high priority issues in Jira. There does seem to be a major increase in Jira issues closed, but I think this is due to clean up.
No report was submitted.
No report was submitted.
## Description: The mission of Apache Beam is the creation and maintenance of software related to a unified programming model for both batch and streaming data processing, enabling efficient execution across diverse distributed execution engines and providing extensibility points for connecting to different technologies and user communities. ## Issues: There are no issues requiring board attention. ## Membership Data: Apache Beam was founded 2016-12-20 (4 years ago) There are currently 79 committers and 23 PMC members in this project. The Committer-to-PMC ratio is roughly 8:2. Community changes, past quarter: - No new PMC members. Last addition was Chamikara Madhusanka Jayalath on 2021-01-20. - Ning was added as committer on 2021-03-18 - Tomo Suzuki was added as committer on 2021-03-31 - Yichi Zhang was added as committer on 2021-04-13 ## Project Activity: Recent releases (we start release process every 6 weeks): - 2.30.0 was released on 2021-06-08 (6 weeks since 2.29.0). - 2.29.0 was released on 2021-04-27 (9 weeks since 2.28.0). Maintenance work on runners and Java ecosystem: - Drop support for Flink 1.10. - Spark Classic and Portable runners officially support Spark 3. - Official Java 11 support for most runners (Dataflow, Flink, Spark). Some new features integrating with other notable projects: - Pandas-compatible DataFrame API: Added support for collecting DataFrame objects in interactive Beam. Interactive Beam is how one uses Beam in a notebook, so there is a good synergy. - DebeziumIO cross-language wrapper for Python. Misc work worth noting: - New contributor flow improvements (CI, documentation, automation). Issue management: We were starting to develop a large backlog of "P1" issues. This priority is reserved for critical issues, including failing tests that obscure visibility into health of the code [beam-jira-priorities]. This backlog was largely invisible to the broader community. To increase awareness and voluntary activity around this we started automated daily emails (our policy is continuous updates on P1s after all) listing and linking to all of them. It seems to have helped somewhat for both flakes [beam-flake-trend] and non-flake P1s [beam-p1-trend] but there is more to do. Another area where we have a backlog that most community members ignore are untriaged issues, which you could view as a contrast (no email - significant backlog growth) [beam-triage-trend]. [beam-jira-priorities] https://beam.apache.org/contribute/jira-priorities/ [beam-flake-trend] https://s.apache.org/beam-flake-trend [beam-p1-trend] https://s.apache.org/beam-p1-trend [beam-triage-trend] https://s.apache.org/beam-triage-trend ## Community Health: Community health metrics are remarkably stable again. Exactly the same number of code contributors and closed PRs as last quarter. Almost the same number of Jiras were opened and closed. Mailing list traffic is up, but that fluctuates a lot anyhow, and we added two daily emails which account for a significant fraction.
## Description: The mission of Apache Beam is the creation and maintenance of software related to a unified programming model for both batch and streaming data processing, enabling efficient execution across diverse distributed execution engines and providing extensibility points for connecting to different technologies and user communities. ## Issues: There are no issues requiring board attention at this time. ## Membership Data: Apache Beam was founded 2016-12-20 (4 years ago) There are currently 76 committers and 23 PMC members in this project. The Committer-to-PMC ratio is roughly 7:2. Community changes, past quarter: - Chamikara Madhusanka Jayalath was added to the PMC on 2021-01-20 - Piotr Szuberski was added as committer on 2021-01-19 ## Project Activity: Recent releases: - 2.28.0 was released on 2021-02-22. - 2.27.0 was released on 2021-01-08. - 2.26.0 was released on 2020-12-11. Technical improvements are steady. There are no disruptive technical changes to mention, just healthy enhancements and bugfixes for a variety of modules: ParquetIO, BigQueryIO, PubsubIO, SQL. [changes] Highlights of community activities: - A new design for the website is now done and deployed [website]. - Beam College [college] starts on April 7th. This is a training event offering five single-day sessions for Beam users to go deep on topics. - Beam Summit 2021 planning has begun [summit]. [changes] https://github.com/apache/beam/blob/master/CHANGES.md [website] https://s.apache.org/7rr5d [college] http://beamcollege.dev/ [summit] https://s.apache.org/8cp13 ## Community Health: Community health metrics are remarkably stable across all mailing lists and code review. I will mention one specific statistic so that no one is concerned. In the data, we see "300 issues closed in JIRA, past quarter (782% increase)" but this is due to breakage and subsequent repair of our Jira workflows.
## Description: The mission of Apache Beam is the creation and maintenance of software related to a unified programming model for both batch and streaming data processing, enabling efficient execution across diverse distributed execution engines and providing extensibility points for connecting to different technologies and user communities. ## Issues: There are no issues requiring board attention. ## Membership Data: Apache Beam was founded 2016-12-20 (4 years ago) There are currently 75 committers and 22 PMC members in this project. The Committer-to-PMC ratio is roughly 7:2. Community changes, past quarter: - No new PMC members. Last addition was Alexey Romanenko on 2020-06-11. - No new committers. Last addition was Heejong Lee on 2020-09-03. The cause of the stall is simply lowered PMC activity. It has been noted by the PMC and we are getting it moving again. ## Project Activity: In the core model there is big news: "Splittable DoFn" is now the default recommended way to write new data connectors. In simple terms: data sources are now dynamic. Previously, data connectors were a root of the computation graph (no inputs) and you said what you wanted to read before you started your job. Now data connectors take their input specification at runtime. This opens up a whole new realm of data processing, as you can take a "big data" number of Kafka topics or HDFS paths on input and read from all of them, and the rest of the Beam model "just works" with this (including unification of bounded and unbounded data and watermarks, etc). In the Python realm: - Python 2 and Python 3.5 support dropped! - Performance-driven type checking added (opt-in) [pytypes]. - An exciting new avenue for users is a Pandas compatible API. The goal is exact compatibility. To that end, we are running Pandas own test suite against the Beam module. - Beam's cross-language capabilities continue to expand: Java-based KinesisIO, SnowflakeIO, are available for Beam Python users In the Java realm: - Java 11 is officially supported and tested. Users are invited to use Java 11. - We have started to develop BOMs that simplify dependency management for users who have committed to a particular ecosystem (where "ecosystem" is deliberately undefined and user demand can drive new BOMs being made). - Our Hadoop connectors are now tested against Hadoop 3. In the SQL realm: a bunch more connector capabilities: - Avro, JSON, and Protobuf over Kafka - Avro over Pubsub - Bigtable connector - Thrift format support For the Flink runner there is a major change in the works: it was cloning every item of data needlessly. This was noticed, diagnosed, and fixed, reducing some pipeline runtimes by 80%. For the Dataflow runner there is a major migration happening: "Dataflow V2" is going more "all in" on Beam. Rather than translating Beam's pipeline model to the Dataflow API it is using Beam's model directly. This also enables cross-language pipelines and users to have simplified custom containers for their UDFs. FlinkRunner and SparkRunner already had "portable" variants, and this is the "portable" variant of Dataflow. (the term "portable" refers to using Beam's new "portability" APIs that allow all the language-agnostic goodness). Recent releases (we have a target cadence of 6 weeks): - 2.27.0 was released on 2021-01-08. - 2.26.0 was released on 2020-12-11. - 2.25.0 was released on 2020-10-23. ([pytypes](https://beam.apache.org/blog/python-performance-runtime-type-checking/) ## Community Health: There is an overall trend of reduced activity. The variance in usual quarters is pretty high, but I would guess the pandemic has had a significant effect. Verbatim stats, for reference: - dev@beam.apache.org had a 21% decrease in traffic in the past quarter (811 emails compared to 1017) - github@beam.apache.org had a 37% decrease in traffic in the past quarter (7584 emails compared to 11968) - issues@beam.apache.org had a 39% decrease in traffic in the past quarter (13471 emails compared to 21750) - 565 issues opened in JIRA, past quarter (3% increase) - 697 commits in the past quarter (-37% decrease) - 120 code contributors in the past quarter (-27% decrease) - 610 PRs opened on GitHub, past quarter (-27% decrease) - 586 PRs closed on GitHub, past quarter (-30% decrease) - 114 issues closed in JIRA, past quarter (570% increase)
No report was submitted.
## Description: The mission of Apache Beam is the creation and maintenance of software related to a unified programming model for both batch and streaming data processing, enabling efficient execution across diverse distributed execution engines and providing extensibility points for connecting to different technologies and user communities. ## Issues: There are no issues requiring board attention. ## Membership Data: Apache Beam was founded 2016-12-20 (3.75 years ago) There are currently 75 committers and 22 PMC members in this project. The Committer-to-PMC ratio is roughly 7:2. Community changes, past quarter: - Alexey Romanenko was added to the PMC on 2020-06-11 - Aizhamal Nurmamat kyzy was added as committer on 2020-06-17 - Austin Bennett was added as committer on 2020-06-22 - Heejong Lee was added as committer on 2020-09-03 - Reza Ardeshir Rokni was added as committer on 2020-08-17 ## Project Activity: - Beam 2.24.0 is the last release with Python 2 and Python 3.5 support. - “Cross-language transforms” continue to grow: JdbcIO (Java-based) now available to Beam Python users. - Twister2 runner is merged - Python 3.8 support added - More effort on Splunk, Snowflake, and Google Healthcare API integrations Recent releases: - 2.23.0 was released on 2020-07-29. - 2.22.0 was released on 2020-06-08. - 2.21.0 was released on 2020-05-27. ## Community Health: Community metrics steady: - Mailing list activity about the same on user@ (about 500) and dev@ (between 1000 and 1500) - Pull request open and close rate about the same (just under 800). The fact that equal numbers of pull requests are opened and closed is nice. The board may enjoy this basic analysis [1] of code contributors presented at the Beam Summit. Highlighted points: - Each release has a bit under 100 unique contributors (steady for a long time) - About 20 of which are new each time (which means 20 depart as well) - This is explained because the majority of Beam's contributors have under 10 commits total, perhaps mostly "scratching an itch" by fixing a one-off issue. [1] https://s.apache.org/beam-summit-code-contributor-analysis
## Description:
The mission of Apache Beam is the creation and maintenance of software related
to a unified programming model for both batch and streaming data processing,
enabling efficient execution across diverse distributed execution engines and
providing extensibility points for connecting to different technologies and
user communities.
## Issues:
There are no issues requiring board attention.
## Membership Data:
Apache Beam was founded 2016-12-20 (3 years ago)
There are currently 71 committers and 21 PMC members in this project.
The Committer-to-PMC ratio is roughly 7:2.
Community changes, past quarter:
- No new PMC members. Last addition was Pablo Estrada on 2019-05-13.
- Robin Qiu was added as committer on 2020-05-18
## Project Activity:
Some updates:
- Last report, the community had received drafts of our new mascot, the
firefly. Now the final drafts are done and committed to the website.
[mascot]
- Last report, website migration to Hugo/docsy was just beginning. It is now
complete, ready for i18n.
- Last report, we were working on moving to a dedicated Jenkins instance. That
stalled for a bit, but in the last couple of days moved rapidly and is
almost done.
[mascot] https://beam.apache.org/community/mascot/
Other milestones:
- As of April, docker containers that Beam releases adhere to the guidance of
LEGAL-503. [LEGAL-503]
- Beam's "cross-language" features are maturing, with a focus on making Beam
Java features available for Beam Python. This is not just bridging
languages, but communities/ecosystems. Only some runners support executing
such a pipeline for now; as each one fully migrates to Beam's
"portability framework" this will be enabled. What can Pythonistas use on
enabled runners now?
- SQL (Java-based, built on Apache Calcite)
- KafkaIO (a connector to Apache Kafka authored in Java)
- New IO Connectors: Beam now has IO connectors for Snowflake and Google
Healthcare APIs.
[LEGAL-503] https://issues.apache.org/jira/browse/LEGAL-503
Some work on project health, removing things we don't want/need to maintain:
- Following Gearpump retiring from the incubator, the Gearpump runner was
removed.
- Following Apex moving to the attic, the Apex runner will be removed.
Other highlighted activity:
- The community discussed how many / which Python 3.x versions Beam should
support concurrently, with the conclusion that 3.5 and 3.7 were highest
priority. [py3]
- A Beam "fixit" week was proposed. Contributors would add testing /
reliability / quality related Jiras to a label `beam-fixit` and we could fix
some. 105 Jiras were added to the label, and about 30 were fixed.
- Beam has 3 Google Summer of Code students working on Beam SQL and Beam
Python
- Beam was accepted to Google Season of Docs program. Currently the project is
accepting proposals for tech writers to improve documentation.
- We moved to our own Jira priority scheme, strictly numerical (P0, P1, etc)
with tooltips we authored, and explanations on the Beam site
[jira-priorities]. This reduced friction for users and release managers,
since Jira's built-in priorities like "Blocker", "Critical", "Major" were
amgibuous and caused confusion.
- We activated Jira automation to:
- Unassign issues that were likely forgotten. This identified many issues
that could be picked up by new contributors, and many that could be
closed.
- Lower priority from P2 ("default") to P3 ("nice to have") for unassigned
issues that were very old, to match how they were prioritized in practice.
This identified many issues at the wrong priority, and also prompted
discussions between users and Beam developers.
[py3] https://s.apache.org/beam-py3-discussion
[jira-priorities] https://beam.apache.org/contribute/jira-priorities/
In the current pandemic situation, conferences have been altered or canceled,
but we have activity to note:
- "Distributed Processing for Machine Learning Production Pipelines" presented
at Flink Forward Virtual 2020 (https://www.youtube.com/embed/jV1WFTmm4qg)
- Beam Summit organizers committed to working more transparently with the
community [beam-summit-transparency]. In June we have received weekly status
reports. [beam-summit-20200603] [beam-summit-2020-0610]
- Beam Summit 2020 rescheduled and converted to Beam Digital Summit.
[beam-digital-summit]
- Organized a May digital learning month, to keep community engaged with
weekly talks during COVID19. Hosted 4 webinars introducing different
features of Apache Beam. Received 100~200 viewers on average for each
webinar.
[beam-summit-transparency] https://s.apache.org/beam-summit-transparency
[beam-summit-20200603] https://s.apache.org/beam-summit-20200603
[beam-summit-20200610] https://s.apache.org/beam-summit-20200610
[beam-digital-summit] https://s.apache.org/beam-digital-summit
Recent releases:
- 2.22.0 was released on 2020-06-08.
- 2.21.0 was released on 2020-05-27.
- 2.20.0 was released on 2020-04-15.
## Community Health:
- Traffic on dev@ was about the same, PRs and commits about the same.
- Traffic on user@ was double, seemingly a real and sustained increase.
## Description: The mission of Apache Beam is the creation and maintenance of software related to a unified programming model for both batch and streaming data processing, enabling efficient execution across diverse distributed execution engines and providing extensibility points for connecting to different technologies and user communities. ## Issues: There are no issues requiring board attention. ## Membership Data: Apache Beam was founded 2016-12-20 (3 years ago) There are currently 70 committers and 21 PMC members in this project. The Committer-to-PMC ratio is roughly 7:2. Community changes, past quarter: - No new PMC members. Last addition was Pablo Estrada on 2019-05-13. - Alex Van Boxel was added as committer on 2020-02-03 - Chad Dombrova was added as committer on 2020-02-20 - Hannah Jiang was added as committer on 2020-02-03 - Jincheng Sun was added as committer on 2020-02-18 - Kamil Wasilewski was added as committer on 2020-02-27 - Katarzyna Kucharczyk was added as committer on 2019-12-19 - Michał Walenia was added as committer on 2020-01-25 ## Project Activity: - Improvements and fixes on several IOs have been done or on the way (updated ElasticsearchIO, JmsIO new message types support, …) - Beam now has an official Beam Improvement Proposal (BIP) process [bip] and a first BIP [bip1]. This gives a clear way for people to proposal enhancements, followed by an official voting process. We are looking forward to evolving the process as we gain experience, in order to be more clear about the status of proposals, for the Beam dev community and also broader community including users. - Last report, the community had chosen the firefly as mascot. Now we have received some draft artwork from a vendor. - Lots of activity around Google Summer of Code projects. Beam docker images are now transitioned to the apache org (off the apachebeam). [docker] - A draft communications strategy makes for really interesting reading about outreach and awareness. [comms] - The new twister2 runner is approaching merge. [twister2] - Website transition to docsy has an update that it is beginning shortly. [docsy] - Starting with Beam 2.21.0 support for Flink 1.7 will be removed. [flink17] - Starting with Beam 2.21.0 support for Flink 1.10 has been added. [flink110] - Starting with the approach to the 2.20.0 release, Beam has adopted a CHANGES.md file to track and draft release notes. It should also help make it easier to have informative board reports. - We still have not got the isolated Jenkins instance finished, which would allow precommits to run on pull requests from untrusted parties. [bip] https://s.apache.org/iwaoz [bip1] https://s.apache.org/yo5zh [docker] https://s.apache.org/y5cmf [twister2] https://s.apache.org/iwuuw [docsy] https://s.apache.org/j5nds [comms] https://s.apache.org/ccqs8 [flink17] https://s.apache.org/8dky5 [flink110] https://issues.apache.org/jira/browse/BEAM-9295 Recent releases: - 2.19.0 was released on 2020-02-03. - 2.18.0 was released on 2020-01-23. - 2.17.0 was released on 2020-01-06. ## Community Health: Busiest email thread: this thread has been re-used over time for people to request a committer to trigger testing on the PR - dev@beam.apache.org Jenkins jobs not running for my PR 10438(98 emails) The traffic on builds@ indicates a lot more test failures on master. It does mean the community needs to communicate and come together around test health. - builds@beam.apache.org had a 56% increase in traffic in the past quarter (11442 emails compared to 7317): Traffic on dev@, issues@, and user@ don't show interesting changes. JIRA continues to grow faster than it shrinks, in a healthy ratio: - 514 issues opened in JIRA, past quarter (-29% decrease) - 398 issues closed in JIRA, past quarter (4% increase) Could we possibly be catching up on PRs? Let's wait and see. We are down to 118 open at the time of this writing (we were previously on the move from about 100 open all the time up to 150+ open all the time). GitHub PR activity: - 720 PRs opened on GitHub, past quarter (-11% decrease) - 745 PRs closed on GitHub, past quarter (-6% decrease)
No report was submitted.
@Rich: pursue a report for Beam
## Description:
The mission of Apache Beam is the creation and maintenance of software related
to a unified programming model for both batch and streaming data processing,
enabling efficient execution across diverse distributed execution engines and
providing extensibility points for connecting to different technologies and
user communities.
## Issues:
There are no issues requiring board attention.
## Membership Data:
Apache Beam was founded 2016-12-20 (3 years ago)
There are currently 63 committers and 21 PMC members in this project.
The Committer-to-PMC ratio is 3:1.
Community changes, past quarter:
- No new PMC members. Last addition was Pablo Estrada on 2019-05-13.
- Alan Myrvold was added as committer on 2019-09-24
- Brian Hulette was added as committer on 2019-11-14
- Daniel Oliveira was added as committer on 2019-11-20
## Project Activity:
We crossed 10,000 pull requests! That is just a cumulative milestone, but this
quarter alone was extremely active. Number of days from PR #1 and PR #1000:
211. Number of days from PR #9000 and PR #10000: 71
Some notable technical developments, focusing mostly on integrations:
- A new experimental Spark runner based on Spark structured streaming
framework is available on master for testing. To fully support the Beam
model, it will require Spark structured streaming to support multiple
aggregations, but it can be tested for batch jobs in the meantime. [1]
- A new Jupyter notebook integration, dubbed "interactive beam", was proposed
and implemented, and remains under heavy development. [2]
- Portability continues to mature, with significant use and development of
Python on Flink, and maturation of multi-language pipelines, in which a
"Beam Python" pipeline can include connectors and SQL from Java. The Go SDK
intends to primarily support this mode, to avoid re-implementing any
connectors, so this will lead to "Go on any data processing engine".
- The beginning of transition from AWS v1 to AWS v2 [3]. Many other
improvements across a many connectors to storage systems.
[1] https://lists.apache.org/thread.html/0135c726ab
f454ea381c1075fe6b588b42b8e6b1e69964e749a0621d%40%3Cdev.beam.apache.org%3E
[2] https://lists.apache.org/thread.html/6ed9a4100
89b86c7c99a0f0ad8e9ce97b6414eb95ffb69f5a52dc0dc%40%3Cdev.beam.apache.org%3E
[3] [https://lists.apache.org/thread.html/130cb60e6b
cdd58c5afdd0c375663eaf05e705aab9ee0196535cd17f%40%3Cdev.beam.apache.org%3E]
Some notable community resolutions and discussions:
- Discussion of Beam Summit 2020 [4]
- The Beam community has decided to adopt a mascot, the Firefly. [5] [6]
Currently being designed by community members.
- We documented Jira priority explanations and release blocking policies [7]
- We joined a pledge on https://python3statement.org/ to discontinue Python 2
support in 2020. [8]
- A renewed discussion and interest is communicating effectively with Beam
users the maturity and stability of different components. [9]
- Another renewed conversation around a more formal "BIP" (Beam Improvement
Proposal) process, to improve clarity of approval and development of bigger
changes. [10]
- Our Outreachy proposals did not receive contributions in the needed
timeframe, despite some initial interest. They may not have been
appropriately scoped for an Outreachy internship. [11]
- LTS (Long Term Support) version has not been very successful, with zero
patch releases, because no one really seemed to want one. We may designate
another one and try harder next time to really finish a patch release and
measure its uptake.
[12]
[4] https://lists.apache.org/thread.html/bd9a1cebbcc
6994b0f9a5f1cdb402a19efe9c5acc54d6aa65bc671a2%40%3Cdev.beam.apache.org%3E][5]
https://lists.apache.org/thread.html/ff60eabbf8
349ba6951633869000356c2c2feb48bbff187cf3c60039%40%3Cdev.beam.apache.org%3E
[6] https://lists.apache.org/thread.html/fd8146e3e7
9fc41e8c760924be3b29b1c5314024336f473f9f0e7723%40%3Cdev.beam.apache.org%3E
[7] https://lists.apache.org/thread.html/05fa80345
f9e9ed5c9233f1dd2aa7ffbf1b5691dfeef5b449f6be338%40%3Cdev.beam.apache.org%3E
[8] https://lists.apache.org/thread.html/634f7346
b607e779622d0437ed0eca783f474dea8976adf41556845b%40%3Cdev.beam.apache.org%[9]
https://lists.apache.org/thread.html/0f76973
6be1cf2fc5227f7a25dd3fdbb9296afe8a071761cb91f588a%40%3Cdev.beam.apache.org%3E
[10] https://lists.apache.org/thread.html/9236522d90
06d6b8747d179bc369f5b082801e31fbecd4bdfce8f3e1%40%3Cdev.beam.apache.org%3E
[11] https://lists.apache.org/thread.html/217daec97f
bcf04c71a93a2d306593f01c18f09aaad7abd69ec33eef%40%3Cdev.beam.apache.org%3E
[12] https://lists.apache.org/thread.html/100e13251b
31ca601ddd53ab7e819de0960e826e96a0aece43045861%40%3Cdev.beam.apache.org%3E
A continuing pain point is our release process being slow and cumbersome. The
2.17.0 release has been underway for over 6 weeks. Such a burden is not
approachable for volunteer contributors.
## Community Health:
The community is vigorous, but the balance of activities is imperfect.
Mailing list stats are worth mentioning because dev@ traffic is getting *very*
large. It does not include Jira/Jenkins/GitHub notifications. Even some steady
contributors have indicated that they cannot really follow the dev@ list.
- dev@beam.apache.org had a 23% increase in traffic in the past quarter (1820
emails compared to 1478)
- user@beam.apache.org had a 32% increase in traffic in the past quarter (446
emails compared to 336)
The open PR count (steady state) has climbed from about 100 to over 150. This
is not due to more PRs being opened. The PR open rate is about the same. The
PR close rate is also about the same. I think this implies we have been
steadily falling behind further and further. Cultivating new
contributors/committers may help, as well as highlighting or trying to
incentivize code review by existing committers and also by non-committers.
## Description:
- Apache Beam is a unified programming model for both batch and streaming
data processing, enabling efficient execution across diverse distributed
execution engines and providing extensibility points for connecting to
different technologies and user communities.
## Issues:
- There are no issues requiring board attention at this time
## Activity:
Beam Summit NA occurred at ApacheCon NA. About 80 people attending 20 talks in
2 rooms over 2 days, plus a day-long Beam introductory workshop. Good
cross-pollination of talks and audience: 4 Beam related talks on other tracks;
2 non-Beam talks by Beam Summit organizers on community track; Beam Summit
attendees and speakers checked out the other tracks; other ApacheCon attendees
lured into Beam Summit :-)
Many large contributions:
- A translator from Google's recently open sourced ZetaSQL dialect into
Apache Calcite's relational algebra. This enables ZetaSQL as a choice of
dialect for using Beam SQL.
- An integration with ZetaSketch HyperLogLog algorithm, recently open sourced
as well.
- A new sort-merge join algorithm from Spotify. Still under discussion and
review.
Technically, there is a noticeable trend into schema-aware data processing,
expanding from Beam SQL to other proposals like dataframe-style APIs and
columnar processing using Apache Arrow.
A SQL collaboration: PMC from Flink, Beam, and Calcite, together with
researchers from Oakridge National Lab that sit on the ISO SQL committee,
wrote a proposal for what streaming SQL should look like across their projects
and the industry as a whole, to influence streaming SQL standardization.
Presented to SIGMOD industry track and later at ApacheCon (and other venues).
Other dev list discussions of interest, due to community relevance or
integrations with other Apache projects:
- A new integration - Ananas Analytics Desktop, a GUI for building pipelines.
Built without Beam's involvement; a sign of relevance and accessibility.
[0]
- How to support users best, across user@, StackOverflow, and Slack: Covered
tradeoffs between synchronous vs asynchonous, mostly. Did not get into
ASF-hosted vs third party, nor was licensing of code snippets discussed.
[1]
- Which Flink versions to support and how best to support multiple versions.
[2]
- One Google Summer of Code project wrapped up, on optimized inserts to
BigQuery. [3]
- We have improved issue triage significantly. We added a default Jira status
of "Needs Triage" to make sure all bugs get some attention from a
knowledgeable community member. I asked for help triaging, and the
community collaboratively kept untriaged issues steadily under 100, for the
first time in a long time. [4]
- Protocol for managing Beam's social media presence were discussed more, and
we have a system in place (after long discussion) where the community can
contribute easily and the PMC can review and approve. [5]
- Improvements to our release process of vendored artifacts and documentation
of it. [6]
[0] https://lists.apache.org/thread.html/ce3a051789868e362680e358569da26711d6b513cf2396094a242230@%3Cdev.beam.apache.org%3E
[1] https://lists.apache.org/thread.html/ed90f898d571856a5b92df23150d3417732a9f5f1b4c6ff2a41bf237@%3Cdev.beam.apache.org%3E
[2] https://lists.apache.org/thread.html/124200de15d88321d590bf83be3ba0e8bdfc3a161a0bcd66a12921ed@%3Cdev.beam.apache.org%3E
[3] https://gist.github.com/ttanay/80f84b7b852e0867d5a00d3b345e1dad
[4] https://lists.apache.org/thread.html/dd0048c68c1b5511ca5a0f668a848159fd441d51c21f332b43510163@%3Cdev.beam.apache.org%3E
[5] https://lists.apache.org/thread.html/babceeb52624fd4dd129c259db8ee9017cb68cba069b68fca7480c41@%3Cdev.beam.apache.org%3E
[6] https://lists.apache.org/thread.html/e2c49a5efaee2ad416b083fbf3b9b6db60fdb04750208bfc34cecaf0@%3Cdev.beam.apache.org%3E
## Health report:
Dev and user list subscription and traffic steady.
Each release continues to include commits from 60-100 contributors.
One sign of community bonding I've noticed happily was people letting dev@
know when they were going on vacation.
## PMC changes:
- Currently 21 PMC members.
- No new PMC members. Last addition was Pablo Estrada on 2019-05-13.
## Committer base changes:
- Currently 60 committers.
- New committers:
- Rui Wang was added as committer on 2019-07-30
- Kyle Weaver was added as committer on 2019-08-02
- Jan Lukavský was added as committer on 2019-07-25
- Robert Burke was added as committer on 2019-06-28
- Mikhail Gryzykhin was added as committer on 2019-06-16
- Valentyn Tymofieiev was added as committer on 2019-08-09
## Releases:
- 2.15.0 was released on 2019-08-22.
- 2.14.0 was released on 2019-08-01.
- 2.13.0 was released on 2019-06-04.
## Mailing list activity:
Mailing list activity does not indicate any significant change.
- dev@beam.apache.org:
- 627 subscribers (up 17 in the last 3 months):
- 1549 emails sent to list (2110 in previous quarter)
- user@beam.apache.org:
- 641 subscribers (up 14 in the last 3 months):
- 359 emails sent to list (416 in previous quarter)
## JIRA activity:
- 615 JIRA tickets created in the last 3 months
- 334 JIRA tickets closed/resolved in the last 3 months
## Description:
- Apache Beam is a unified programming model for both batch and streaming
data processing, enabling efficient execution across diverse distributed
execution engines and providing extensibility points for connecting to
different technologies and user communities.
## Issues:
- There are no issues requiring board attention at this time
## Activity:
- A portable Spark runner added capable of running Python and Go pipelines in
Batch mode.
- A new runner has been added based upon Hazelcast Jet, with "experimental"
status, a signal to users that it is new and may have breaking changes
before it becomes finalized.
- Beam Katas (interactive programming exercises of gradually increasing
complexity) based on JetBrains Education Products have been added to the
project to aid increasing user growth. They are available for Python and
Java.
- Cross-language transform support for Flink runner was added. It now
possible (with some effort) to build a pipeline in Python that utilizes
transforms authored in Java.
## Health report:
Dev and user list subscription steady, but great increase in traffic on dev@.
There have been healthy discussions around technical decisions.
Each release tends to include commits from 60-100 contributors.
## PMC changes:
- Currently 21 PMC members.
- Pablo Estrada was added to the PMC on Mon May 13 2019
## Committer base changes:
- Currently 54 committers.
- New commmitters:
- Boyuan Zhang was added as a committer on Tue Apr 09 2019
- Jozef Vilcek was added as a committer on Sat Jun 08 2019
- Udi Meiri was added as a committer on Fri May 03 2019
- Yifan Zou was added as a committer on Mon Apr 22 2019
## Releases:
- 2.12.0 was released on Wed Apr 24 2019
- 2.13.0 was released on Tue Jun 04 2019
## Mailing list activity:
- dev@beam.apache.org:
- 627 subscribers (up 17 in the last 3 months):
- 2110 emails sent to list (1352 in previous quarter)
- user@beam.apache.org:
- 641 subscribers (up 14 in the last 3 months):
- 416 emails sent to list (383 in previous quarter)
## JIRA activity:
- 719 JIRA tickets created in the last 3 months
- 610 JIRA tickets closed/resolved in the last 3 months
## Description:
Apache Beam is a unified programming model for both batch and streaming data
processing, enabling efficient execution across diverse distributed execution
engines and providing extensibility points for connecting to different
technologies and user communities.
## Issues:
There are no issues requiring board attention at this time
## Activity:
Apache Beam has a number of major technical endeavors maturing. As usual for
Beam, these include many integrations with other projects / communities:
- Beam Python can be executed on Flink and is reported to be used in
production
- Beam Java on Samza is reported to be used in production, and some success
reported running Beam Python on Samza
- Our first release with partial Python 3 support
- Beam's IO connector ecosystem is healthy, with additions or upgrades to
connectivity to RabbitMQ, Redis, Spanner, Parquet, Hadoop, MongoDb, Kafka,
BigQuery, Cassandra, JDBC. And Beam SQL has added Hive Metastore support.
This reflects the growing diversity of users and use cases represented in
the Beam community.
Community event activity has seen good developments and cross-community
building too:
- A San Francisco-based Beam meetup group started and seems self-sustaining
- Beam Python on Flink has gained interest and was presented at a Seattle
Flink Meetup
- Kettle on Beam was presented at a London Pentaho Meetup
Beam Summit Europe 2019 is approved, to occur June 19-20 in Berlin (convenient
to Berlin Buzzwords).
There have been three Beam Newsletters [1, 2, 3] since the last report was
authored. There are collaboratively authored - anyone can suggest content
about technical achievements, what they are working on, events, blog posts,
etc. Much of the above and other details can be found in the newsletter.
A nice community touch is that the newsletter also gathers information from
threads where people introduce themselves, so it is a place to learn/reflect
on new members of the community.
The community has recently discussed moving finalized newsletter to the blog
or creating a "News" section on the website to boost visibility of the
information and clarity around the newsletter's publication date.
[1] https://s.apache.org/beam-newsletter-2018-12
[2] https://s.apache.org/beam-newsletter-2019-01
[3] https://s.apache.org/beam-newsletter-2019-02
## Health report:
Dev and user list subscription is slightly up, while traffic is slightly down.
There's no indication of major health changes. The content of both lists
remains qualitatively about the same.
Each release tends to include commits from 60-100 contributors.
## PMC changes:
- Currently 20 PMC members.
- Etienne Chauchot was added to the PMC on Thu Jan 24 2019
## Committer base changes:
- Currently 50 committers.
- New commmitters:
- Gleb Kanterov was added as a committer on Thu Jan 24 2019
- Mark Liu was added as a committer on Fri Mar 08 2019
- Michael Luckey was added as a committer on Fri Feb 22 2019
- Raghu Angadi was added as a committer on Thu Mar 07 2019
## Releases:
- 2.9.0 was released on Thu Dec 13 2018
- 2.10.0 was released on Sun Feb 10 2019
- 2.11.0 was released on Thu Feb 28 2019
## Mailing list activity:
- dev@beam.apache.org:
- 613 subscribers (up 28 in the last 3 months):
- 1464 emails sent to list (1941 in previous quarter)
- user@beam.apache.org:
- 627 subscribers (up 28 in the last 3 months):
- 391 emails sent to list (465 in previous quarter)
## JIRA activity:
- 607 JIRA tickets created in the last 3 months
- 462 JIRA tickets closed/resolved in the last 3 months
## Description:
- Apache Beam is a unified programming model for both batch and streaming
data processing, enabling efficient execution across diverse distributed
execution engines and providing extensibility points for connecting to
different technologies and user communities.
## Issues:
- There are no issues requiring board attention at this time
## Activity:
- We are happy to welcome a new integration: A Beam runner for Apache Nemo
(incubating) has been authored, and resides in the Nemo repository.
- The community held a 2-day Beam Summit London in October with 80 attendees,
mostly users. Considered a success, the community intends to hold more,
likely planning a bit more in advance.
- The project has also added a “Roadmap” to the website, to share with users
exciting developments underway that are otherwise only discoverable on
dev@. Based on a good discussion, it emphasizes how a roadmap for a
community driven ASF project differs from a commercial roadmap.
- Other recent community decisions include:
- Releasing “vendored” artifacts as an alternative to shading, much as
Apache Flink does.
- Clarifying the conditions under which Beam’s “rollback first” policy
applies. Notably, it does not apply to downstream (potentially
non-public) integrations.
- Send Jira and Jenkins notifications to separate lists issues@ and
builds@, respectively.
- Previously, the community agreed to establish a long-term support (LTS)
branch. This quarter, the 2.7 minor release family was chosen for a 6
month pilot.
- IP clearance has been completed for:
- Dataflow Java Worker
## Health report:
- Notable this quarter is greatly increased attention to the website and wiki
pages pertaining to onboarding new contributors.
- The dev@ and user@ mailing lists continue the prior modest linear growth
trend.
- Email volume to dev@ has increased markedly, especially noting that we have
rerouting all automated emails to issues@beam.apache.org and
builds@beam.apache.org.
## PMC changes:
- Currently 19 PMC members.
- No new PMC members added in the last 3 months
- Last PMC addition was Thomas Weise on Fri Jun 08 2018
## Committer base changes:
- Currently 46 committers.
- New commmitters:
- David Morávek was added as a committer on Mon Oct 29 2018
- Ankur Goenka was added as a committer on Mon Oct 22 2018
- Matthias Baetens was added as a committer on Mon Nov 26 2018
- Xinyu Liu was added as a committer on Mon Oct 15 2018
## Releases:
- Since the last report, Apache Beam has published two releases, with one
more currently in progress:
- 2.7.0 was released on Fri Sep 28 2018
- 2.8.0 was released on Thu Oct 25 2018
- 2.9.0 is in progress
- The community determined to start the release process every 6 weeks, and we
have stuck to this. The smaller gap between 2.7.0 and
2.8.0 is due to variance in the time to a final RC.
## Mailing list activity:
- dev@beam.apache.org:
- 575 subscribers (up 28 in the last 3 months):
- 1939 emails sent to list (1937 in previous quarter)
- user@beam.apache.org:
- 593 subscribers (up 17 in the last 3 months):
- 416 emails sent to list (559 in previous quarter)
## JIRA activity:
- 881 JIRA tickets created in the last 3 months (811 in the previous quarter)
- 622 JIRA tickets closed/resolved in the last 3 months (501 in the previous
quarter)
WHEREAS, the Board of Directors heretofore appointed Davor Bonaci (davor) to the office of Vice President, Apache Beam, and WHEREAS, the Board of Directors is in receipt of the resignation of Davor Bonaci from the office of Vice President, Apache Beam, and WHEREAS, the Project Management Committee of the Apache Beam project has chosen by vote to recommend Kenneth Knowles (kenn) as the successor to the post; NOW, THEREFORE, BE IT RESOLVED, that Davor Bonaci is relieved and discharged from the duties and responsibilities of the office of Vice President, Apache Beam, and BE IT FURTHER RESOLVED, that Kenneth Knowles be and hereby is appointed to the office of Vice President, Apache Beam, to serve in accordance with and subject to the direction of the Board of Directors and the Bylaws of the Foundation until death, resignation, retirement, removal or disqualification, or until a successor is appointed. Special Order 7B, Change the Apache Beam Project Chair, was approved by Unanimous Vote of the directors present.
## Description:
Apache Beam is a unified programming model for both batch and streaming data
processing, enabling efficient execution across diverse distributed execution
engines and providing extensibility points for connecting to different
technologies and user communities.
## Issues:
The Board is presented with a Special Order 7B to appoint Kenneth Knowles
(kenn) to the office of Vice President, Apache Beam. Kenneth has served on the
PMC since its inception, and is very active and effective in growing the
community. His exemplary posts have been cited in other projects.
## Activity:
Apache Beam is now approaching its second anniversary as a top-level project.
Major technical efforts going on include:
- Finishing the portable Flink runner, which adds support for Python and Go
SDKs.
- Adding Schema support.
- Beam SQL.
- Infrastructure and automation.
Recent community decisions include:
- Providing designated "Long Term Support" releases.
- Better management of outdated dependencies.
- Using JIRA to track and highlight non-code contributions.
Several blog posts have been published this quarter, primarily promoting the
releases. Google is organizing a Beam Summit in London next month, expecting
modest attendance. Additionally, Beam was featured at several conferences,
including Flink Forward 2018 in Berlin.
Going forward, the main focus should be on the community growth, particularly
on the user side using non-proprietary engines. This goes hand-in hand with
the next major technical milestone of delivering on the portability framework,
making Beam available to Python and Go communities.
## Health report:
The user community grew modestly, as evidenced by the increased mailing list
activity, which is encouraging.
Activity on the development mailing list decreased, but there were quite a few
new contributors joining, improving the diversity. Lifetime unique code
contributors grew to 322, with 53 new first-time contributors.
## PMC changes:
Currently 19 PMC members. No new PMC members have been added since the last
report. The last PMC addition was Thomas Weise on Fri Jun 08 2018.
Frances Perry requested to resign from the PMC, though that resignation has
been put on hold pending discussions around establishing an emeritus policy
instead, taking into account recent Board discussions and recommendations to
other projects.
## Committer base changes:
Currently 42 committers. Five new committers have been added since the last
report. New committers:
- Scott Wegner was added as a committer on Thu Jun 21 2018.
- Łukasz Gajowy was added as a committer on Wed Jun 27 2018.
- Anton Kedin was added as a committer on Wed Aug 01 2018.
- Andrew Pilloud was added as a committer on Wed Aug 01 2018.
- Tim Robertson was added as a committer on Thu Aug 23 2018.
The PMC recognizes two areas for improvement: (1) diversity of affiliations
among active committers, and (2) an imbalance of contributors to active
committers. The main cause of these recent imbalances is turnover over the
last year, perhaps among some others. The plan of inviting quite a few new
committers over a period of time has materialized. We continue to be cautious
not to grow too quickly to jeopardize the community, or negatively affect
where the project business is handled.
## Releases:
Since the last report, Apache Beam has published two releases, with one more
currently in progress:
- 2.5.0 was released on Thu Jun 21 2018.
- 2.6.0 was released on Tue Aug 07 2018.
- 2.7.0 is currently under preparation.
Going forward, we expect to publish a release every 6 weeks, a target that we
have become better at achieving.
## Mailing list activity:
Mailing list subscriptions and activity continues to increase modestly. The
activity on the development mailing list is down compared to the previous
quarter, likely due to seasonal effects of summer vacations. The activity on
the user mailing list has increased to a new high, which is very encouraging.
- dev@beam.apache.org
- 547 subscribers (up 27 in the last 3 months).
- 1757 emails sent to list (2000 in previous quarter).
- user@beam.apache.org
- 574 subscribers (up 25 in the last 3 months).
- 525 emails sent to list (353 in previous quarter).
## JIRA activity:
For the third quarter in a row, the JIRA activity is increasing, turning over
the earlier trend.
- 811 JIRA tickets created in the last 3 months (705 in the previous quarter).
- 501 JIRA tickets closed/resolved in the last 3 months (368 in the previous
quarter).
## Description: Apache Beam is a unified programming model for both batch and streaming data processing, enabling efficient execution across diverse distributed execution engines and providing extensibility points for connecting to different technologies and user communities. ## Issues: There are no issues that require the Board's attention at this time. ## Activity: Apache Beam is now in its second year as a top-level project, and just celebrated one-year anniversary of its first stable release. Major technical efforts going on include: - Building a portable Flink runner, which adds support for Python and Go SDKs. - Beam SQL. - Infrastructure and automation. Beam desires to serve as a glue in the ecosystem, interconnecting SDKs, engines and storage/messaging systems. On the execution side, Apache Samza runner has seen increased activity, while other prototype runners are mostly dormant on feature branches. On the IO connector side, the healthy growth continues, with new connectors being contributed or improved month-over-month. IP clearances have been completed for: - Euphoria API. - Go SDK. Recent community decisions include: - Publishing guidelines for becoming (and behaving as) a Beam committer. - Releasing Go SDK. - Automation of stale pull requests. No blog posts have been published this quarter. Beam was featured at several conferences, including Flink Forward San Francisco, and DataWorks Summit Berlin. Going forward, the main focus should be on the community growth, particularly on the user side using non-proprietary engines. This goes hand-in hand with the next major technical milestone of delivering on the portability framework, making Beam available to Python and Go communities. ## Health report: The community continues to grow steadily, as follows: - Lifetime unique contributors grew to 269, with 24 new first-time contributors. - Increased subscriptions and activity on the mailing list and in JIRA. - Contribution of new components into the project by external entities. The amount of open discussion and design on the mailing list is at a new high, benefited by arrival of new contributors and increased openness by existing contributors. ## PMC changes: Currently 19 PMC members. One PMC member has been added since the last report: - Thomas Weise was added to the PMC on Fri Jun 08 2018. ## Committer base changes: Currently 37 committers. Six new committers have been added since the last report. New committers: - Jason Kuster was added as a committer on Fri Apr 27 2018. - Pablo Estrada was added as a committer on Fri Apr 27 2018. - Gris Cuevas was added as a committer on Thu May 03 2018. - Charles Chen was added as a committer on Fri Jun 08 2018. - Henning Rohde was added as a committer on Fri Jun 08 2018. - Alexey Romanenko was added as a committer on Tue Jun 12 2018. The PMC recognizes two areas for improvement: (1) diversity of affiliations among active committers, and (2) an imbalance of contributors to active committers. The main cause of these recent imbalances is turnover over the last year, perhaps among some others. The general plan is to invite quite a few new committers over the next period of time, but not too quickly to jeopardize the community, or negatively affect where the project business is handled. Other recent actions include: - Revision of new contributor materials to be more welcoming. - Publishing the (subjective) guidelines for becoming a committer. - Adding an explicit "Community" section to the web site, highlighting ongoing projects to join. PMC member Kenneth Knowles deserves (a rare) mention by name for proactively reaching out to a large number of contributors, offering encouragement and individual coaching to those interested. This effort meaningfully moved the needle forward. ## Releases: Since the last report, Apache Beam has published one release, with one more currently in progress: - 2.4.0 was released on Mon Mar 19 2018. - 2.5.0 is currently under preparation and voting. Version 2.0.0 was the first release that comes with API stability guarantees. Going forward, we expect to publish a release every 6 weeks. We have been short of our declared goal recently; however, the community is tackling this issue. ## Mailing list activity: Mailing list subscriptions and activity continues to increase modestly. The number of emails on the development mailing list is up ~47%, and the number of threads is up ~45%. We continue to see an increase in frequency and depth of mailing list discussions, as well as better participation and diversity of opinion compared to last year. - dev@beam.apache.org - 519 subscribers (up 15 in the last 3 months). - 2127 emails sent to list (1393 in previous quarter). - user@beam.apache.org - 548 subscribers (up 15 in the last 3 months). - 389 emails sent to list (456 in previous quarter). ## JIRA activity: For the second quarter in a row, the JIRA activity is increasing, turning over the earlier trend. - 705 JIRA tickets created in the last 3 months (507 in the previous quarter). - 368 JIRA tickets closed/resolved in the last 3 months (324 in the previous quarter).
## Description: Apache Beam is a unified programming model for both batch and streaming data processing, enabling efficient execution across diverse distributed execution engines and providing extensibility points for connecting to different technologies and user communities. ## Issues: There are no issues that require the Board's attention at this time. ## Activity: Apache Beam is now in its second year as a top-level project, and the community continues to grow modestly. In this quarter, the main technical focus continues to be on the portability framework, and its adoption across all components of the project, which would, among other benefits, extend the Python and Go SDKs to all Beam runners. A sizeable portion of the community is working on this effort. As usual, the project kept interconnecting additional execution engines and data storage/messaging systems, and serves as a glue in the ecosystem. On the execution side, runners for JStorm, Apache Hadoop MapReduce, Apache Samza and Apache Tez are being prototyped in feature branches, but without too much recent activity. On the IO connector side, the healthy growth continues, with new connectors being contributed or improved month-over-month. Seznam.cz decided to donate the Euphoria API to Apache Beam. Also, an SGA for Google’s previous donation of the Go SDK is still pending. Both IP clearances should complete by the next report. Recent major community decisions include: - Dropping Java 7 support, and requiring users to upgrade to Java 8. - Dropping Apache Spark 1.6 support, and requiring users to upgrade to a Spark 2.x cluster. - Completely switching the build system to Gradle. In this quarter, the community published two blog posts, one as a look-back at 2017 and one about the most recent release. Beam was featured at Strata Data Conference San Jose 2017. Additionally, Google hosted a day-long Beam Summit with solid participation. Going forward, the main focus should be on the community growth, particularly on the user side using non-proprietary engines. On the technical side, the next major milestone is the completion of the portability framework across all components of the project. ## Health report: The community continues to grow steadily, as follows: - Lifetime unique contributors grew to 245, with 30 new first-time contributors. - Increased mailing list subscriber/activity. - Increased JIRA activity. - Contribution of new components into the project by external entities. - Continued release cadence. The overall health is solid, improving from a recent low, and is benefited by addition of new community members with foundation membership and/or experience in other projects. ## PMC changes: Currently 18 PMC members. No new members have been added since the last report. Last PMC addition was on Wed Nov 08 2017. We are watching several potential candidates. ## Committer base changes: Currently 31 committers. No new members have been added since the last report. Last committer addition was on Wed Nov 08 2017. There are clear candidates, probably five or so. I’m confident the PMC will address this very quickly. ## Releases: Since the last report, Apache Beam has published one release: - 2.3.0 was released on Thu Feb 15 2018. Version 2.0.0 was the first release that comes with API stability guarantees. Going forward, we expect to publish a release every 2 months. ## Mailing list activity: Mailing list subscriptions and activity continues to increase modestly. It is worth noting that we saw an increase in frequency and depth of mailing list discussions, as well as better participation and diversity of opinion compared to last year. - dev@beam.apache.org - 501 subscribers (up 28 in the last 3 months). - 1595 emails sent to list (1452 in previous quarter). - user@beam.apache.org - 530 subscribers (up 36 in the last 3 months). - 503 emails sent to list (456 in previous quarter). ## JIRA activity: Whereas JIRA activity was going down for a few quarters, it is great to report that we’ve turned the trend back upwards. - 507 JIRA tickets created in the last 3 months (449 in the previous quarter). - 324 JIRA tickets closed/resolved in the last 3 months (171 in the previous quarter).
## Description: Apache Beam is a unified programming model for both batch and streaming data processing, enabling efficient execution across diverse distributed execution engines and providing extensibility points for connecting to different technologies and user communities. ## Issues: There are no issues that require the Board's attention at this time. While the project is doing well, I do want to point out that for the first time there have been some departures from the community as noted in the Health report below. This is to be expected with projects of this size and requires no Board attention at this time. ## Activity: This month we are celebrating the one year anniversary of becoming a top-level project. Over the past year, the project has grown substantially, crossing 200 lifetime individual contributors, and nearing 500 mailing list subscribers. The project published 7 releases, including a major one, version 2.0.0, the first release that comes with an API stability promise. In this quarter, the main technical focus continues to be on the portability framework, and its adoption across all components of the project, which would, among other benefits, extend the Python SDK to all Beam runners. A sizeable portion of the community is working on this effort. An SDK for Go has been contributed/donated to the project by Google, after design and initial development stage outside of the community. The project has accepted this contribution, and it is currently managed as a new component in a feature branch. Hopefully, with community involvement, the component can be merged into master sometime next year. As usual, the project kept interconnecting additional execution engines and data storage/messaging systems, and serves as a glue in the ecosystem. On the execution side, runners for JStorm, Apache Hadoop MapReduce, Apache Samza and Apache Tez are being prototyped in feature branches, but without too much recent activity. The Spark runner migration from Apache Spark 1.6 to 2.x is nearing completion. On the IO connector side, the healthy growth continues, with new connectors being contributed month-over-month (Redis, RabbitMQ, and others). Out of the major discussions that affect the future of the project, it is worth noting the following discussions: - Continuing to support Java 7 vs. requiring users to upgrade to Java 8 in a future release. - Continuing to support Apache Spark 1.6 vs. requiring users to have a Spark 2.x cluster. - Switching the build system from Apache Maven to Gradle. In all three cases, the majority preference seem to be trending towards upgrading, but with varying degrees of opposing opinion as well. With respect to outreach, there have been no blog posts or press releases this quarter. Beam was featured at Strata Data Conference New York and Singapore, QCon San Francisco, as well as several local meetups in the Bay Area, New York, London, Singapore, Guadalajara and Stockholm. Outside the project, IBM launched an Apache Beam runner for IBM Streams as a part of their cloud offering. Enabling users to easily run Beam pipelines on IBM Cloud is good for the overall project growth. Going forward, the main focus should to be on the community growth, particularly on the user side using non-proprietary engines. On the technical side, the next major milestone is the completion of the portability framework across all components of the project. ## Health report: The community continues to grow steadily, as follows: - Lifetime unique contributors grew to 215, with 19 new first-time contributors. - Both PMC and committer base grew by 2 members each. - Mailing list subscribers/activity continue the healthy growth, with over 40 new user@ mailing list subscribers and 50% increase in dev@ email volume. - The release cadence continues, albeit significantly slower than before. The community diversity has decreased somewhat with the departure or inactivity of a handful of early PMC members that were community champions. The effects are visible in the community tone, behavior and consensus building. This is not unexpected for a project of this size and at this point in time, but it is something that we will work to regain over the next few months. ## PMC changes: Currently 18 PMC members. Two new PMC members have been added since the last report: - Ismaël Mejía was added to the PMC on Wed Nov 08 2017. - Reuven Lax was added to the PMC on Wed Nov 08 2017. ## Committer base changes: Currently 31 committers. Two new committers have been added since the last report: - Etienne Chauchot was added as a committer on Wed Nov 08 2017. - Melissa Pashniak was added as a committer on Wed Nov 08 2017. ## Releases: Since the last report, Apache Beam has published one feature release, as well as one patch release: - 2.2.0 was released on Sat Dec 02 2017. - 2.1.1 was released on Fri Sep 22 2017. Version 2.0.0 was the first release that comes with API stability guarantees. Going forward, we expect to publish a release every 2 months. ## Mailing list activity: Mailing list subscriptions continue to increase modestly, along with the healthy increases in the overall email volume. It is worth noting that we saw an increase in frequency and depth of mailing list discussions, as well as better participation and diversity of opinion compared to the previous quarter. - dev@beam.apache.org - 467 subscribers (up 16 in the last 3 months). - 1499 emails sent to list (934 in previous quarter). - user@beam.apache.org - 487 subscribers (up 42 in the last 3 months). - 483 emails sent to list (404 in previous quarter). ## JIRA activity: While JIRA activity continues to be healthy, this is the second quarter with decreasing participation. Earlier in the year, when the community was working towards the first stable release, we had 650 resolved issues in the quarter, falling first to 278, and now dropping to 171. Going forward, this is an area for improvement for the community, as we make sure to hear user feedback. - 449 JIRA tickets created in the last 3 months (505 in the previous quarter). - 171 JIRA tickets closed/resolved in the last 3 months (278 in the previous quarter).
## Description: Apache Beam is a unified programming model for both batch and streaming data processing, enabling efficient execution across diverse distributed execution engines and providing extensibility points for connecting to different technologies and user communities. ## Issues: There are no issues that require the Board's attention at this time. ## Activity: In the previous quarter, we had achieved a major milestone for the project -- the completion of the first stable release, version 2.0.0. It signified a statement from the community that it intends to maintain API stability with all releases for the foreseeable future, and making Beam suitable for enterprise deployment. In this quarter, we continued to build on that momentum and kept interconnecting additional execution engines and data storage/messaging systems, and serve as a glue in the ecosystem. On the execution side, the Apache Gearpump (incubating) runner effort has merged into the master branch as a new component, and will be included in the next release. JStorm, Apache Hadoop MapReduce, and Apache Tez runners are making further progress. The Spark runner migration from Apache Spark 1.6 to 2.x is nearing completion. A major effort to create an SQL extension, based on Apache Calcite, got merged into the master branch as a new component, and is slated for the next release. On the IO connector side, a connector for Apache Solr has been contributed, and additional connectors for Redis, Apache DistributedLog (incubating), Apache Parquet, RabbitMQ, and Advanced Message Queuing Protocol (AMQP) are in progress. Major improvements to file-based connectors have been contributed, making them capable of handling dynamic source and sink locations. We have published two technical blog posts regarding the recent innovation in the project: - Powerful and modular IO connectors with Splittable DoFn in Apache Beam - Timely (and Stateful) Processing with Apache Beam Beam was covered at several industry conferences over the past quarter, including the DataWorks Summit Sydney 2017, Kafka Summit San Francisco 2017, YOW! Data Sydney 2017, and Flink Forward Berlin 2017. Going forward, the main focus continues to be on the user growth, with outreach continuing across conferences and meetups. On the technical side, the next major milestone is the completion of the portability framework across all components of the project, which would, among other benefits, extend the Python SDK to all Beam runners. ## Health report: The community continues to grow steadily, as follows: - For the first time since the top-level project was established, we have added new PMC members, and have added a record of five new committers in the quarter. - The number of contributors continues to increase. We are now at 196 unique code contributors, up from 176 in the last report. - Releases continue at a regular pace of 1-2 months per release. - The mailing list subscribers continue to increase. ## PMC changes: Currently 16 PMC members. Two new PMC members have been added since the last report: - Ahmet Altay was added to the PMC on Thu Aug 10 2017. - Aviem Zur was added to the PMC on Thu Aug 10 2017. ## Committer base changes: Currently 29 committers. Five new committers have been added since the last report: - Jingsong Lee was added as a committer on Thu Jun 22 2017. - Reuven Lax was added as a committer on Fri Aug 11 2017. - James Xu was added as a committer on Fri Aug 11 2017. - Mingmin Xu was added as a committer on Fri Aug 11 2017. - Manu Zhang was added as a committer on Fri Aug 11 2017. ## Releases: Since the last report, Apache Beam has published one release with another one currently being worked on: - 2.1.0 was released on Mon Aug 21 2017. - 2.2.0 is being prepared, with an expected publication in September 2017. Version 2.0.0 was the first release that comes with API stability guarantees. Going forward, we expect to publish a release every 1-2 months. ## Mailing list activity: Mailing list subscriptions continues to increase. The small decrease in the email volume is the effect of comparison with the previous quarter, which included the major effort of publishing the first stable release. - dev@beam.apache.org - 451 subscribers (up 26 in the last 3 months). - 1024 emails sent to list (1139 in previous quarter). - user@beam.apache.org - 445 subscribers (up 56 in the last 3 months). - 413 emails sent to list (512 in previous quarter). ## JIRA activity: JIRA activity continues to be healthy. The small decrease is the effect of comparison with the previous quarter, which included the major effort of publishing the first stable release. - 505 JIRA tickets created in the last 3 months (725 in the previous quarter). - 278 JIRA tickets closed/resolved in the last 3 months (650 in the previous quarter).
## Description: Apache Beam is a unified programming model for both batch and streaming data processing, enabling efficient execution across diverse distributed execution engines and providing extensibility points for connecting to different technologies and user communities. ## Issues: There are no issues that require the Board's attention at this time. ## Activity: We have achieved a major milestone for the project -- the completion of the first stable release, version 2.0.0. It signifies a statement from the community that it intends to maintain API stability with all releases for the foreseeable future, and making Beam suitable for enterprise deployment. Additionally, version 2.0.0 improves user experience across the project, focusing on seamless portability across execution environments, including engines, operating systems, on-premise clusters, cloud providers, and data storage systems. Beam continues to interconnect additional execution engines and data storage/messaging systems, and serves as a glue in the ecosystem. On the execution side, the work continues on the Apache Gearpump (incubating) runner, and a new effort on the JStorm runner has started. On the IO connector side, connectors for Apache Cassandra and Apache Hive’s HCatalog have been contributed, and additional connectors for Redis, Apache DistributedLog (incubating), Apache Solr, Apache Parquet, RabbitMQ, and Advanced Message Queuing Protocol (AMQP) are in progress. Finally, we have started a major effort to create a SQL extension, based on Apache Calcite. We have published a press release and a blog post regarding the first stable release: - https://blogs.apache.org/foundation/entry/the-apache-software-foundation- announces12 - https://beam.apache.org/blog/2017/05/17/beam-first-stable-release.html We have also refreshed the design of our website. Beam was covered at seven major industry conferences over the past quarter, including the "Apache: Big Data" conference in Miami, FL, where we have had 4 talks, a birds-of-a-feather session and a social event. Additionally, we organized the first meetup in the Bay Area, hosted by Hortonworks and Future of Data. Going forward, the main focus continues to be on the user growth, with outreach continuing across conferences and meetups. On the technical side, the next major milestone is the completion of the portability framework across all components of the project, which would, among other benefits, extend Python SDK to all Beam runners. ## Health report: The community continues to grow steadily, as follows: - The number of contributors continues to increase. We are now at 179 unique code contributors, with 76 individuals contributing to the latest release alone (which spanned less than 2 months). - Releases continue at a regular pace of 1-2 months per release. - The activity on the user@ mailing list more than doubled. ## PMC changes: Currently 14 PMC members. No new PMC members have been added since graduation six months ago. We are watching for potential new PMC members. ## Committer base changes: Currently 24 committers. Four new committers have been added since the last report: - Aviem Zur was added as a committer on Fri Mar 17 2017. - Chamikara Jayalath was added as a committer on Fri Mar 17 2017. - Ismaël Mejía was added as a committer on Fri Mar 17 2017. - Eugene Kirpichov was added as a committer on Fri Mar 17 2017. ## Releases: Since the last report, Apache Beam has published two releases: - 0.6.0 was released on Mon Mar 13 2017. - 2.0.0 was released on Mon May 15 2017. Version 2.0.0 is the first release that comes with API stability guarantees. Going forward, we expect to publish a release every 1-2 months. ## Mailing list activity: Mailing list activity continues to increase across all metrics, with the number of user@ emails more than doubling compared to the previous quarter. - dev@beam.apache.org - 424 subscribers (up 63 in the last 3 months). - 1162 emails sent to list (1094 in previous quarter). - user@beam.apache.org - 384 subscribers (up 73 in the last 3 months). - 547 emails sent to list (250 in previous quarter). ## JIRA activity: JIRA activity continues to increase across all metrics, with the number of resolved issues nearly doubling. - 725 JIRA tickets created in the last 3 months (542 in the previous quarter). - 650 JIRA tickets closed/resolved in the last 3 months (347 in the previous quarter).
## Description: Apache Beam is a unified programming model for both batch and streaming data processing, enabling efficient execution across diverse distributed execution engines and providing extensibility points for connecting to different technologies and user communities. ## Issues: There are no issues that require the Board's attention at this time. ## Activity: Apache Beam was established as a top-level project at December’s Board meeting. This is the third in the series of three consecutive monthly reports for new projects. Since last month's report, we have started work on the next release, version 0.6.0. This will be the first release with the new Python SDK, a highly anticipated component that opens up a new user community. Pipelines built with Python SDK currently run on a limited number of runners, but work is ongoing to extend runner support. Beam continues to interconnect additional execution engines and data storage/messaging systems. Since the last report, IO connector for Apache HBase has been contributed, and additional connectors for Redis, Apache Cassandra, Apache DistributedLog, Apache Parquet, Apache Solr, RabbitMQ, and Advanced Message Queuing Protocol (AMQP) are in progress. The work has resumed on the Apache Gearpump (incubating) runner. Going forward, the main focus continues to be on the community growth, particularly users. Beam will be covered at 6 major conferences over the next 2 months, including 2 talks and a tutorial at the upcoming Apache: Big Data North America 2017 conference. On the technical side, the next major milestone is the availability of the first stable release, which will include backward-compatibility guarantees. This stabilization effort has started recently. ## Health report: The community continues to grow steadily, as follows: - The number of contributors continues to increase. - Releases continue at a regular pace of 1-1.5 months per release. - Mailing list activity continues to increase significantly. ## PMC changes: Currently 14 PMC members. No new PMC members have been added since graduation three months ago. ## Committer base changes: Currently 20 committers. Three new committers have been added since graduation: - Ahmet Altay was added as a committer on Tue Jan 31 2017. - Pei He was added as a committer on Tue Jan 31 2017. - Stas Levin was added as a committer on Tue Jan 31 2017. ## Releases: In the two months following graduation, Apache Beam has published two releases: - 0.4.0 was released on Sun Jan 01 2017. - 0.5.0 was released on Mon Feb 06 2017. In addition, the 0.6.0 release is in progress. ## Mailing list activity: Mailing list activity continues to increase across all metrics. - dev@beam.apache.org - 351 subscribers (up 60 in the last 3 months) - 1161 emails sent to list (866 in previous quarter) - user@beam.apache.org - 298 subscribers (up 58 in the last 3 months) - 282 emails sent to list (241 in previous quarter) ## JIRA activity: - 542 JIRA tickets created in the last 3 months - 347 JIRA tickets closed/resolved in the last 3 months
## Description: Apache Beam is a unified programming model for both batch and streaming data processing, enabling efficient execution across diverse distributed execution engines and providing extensibility points for connecting to different technologies and user communities. ## Issues: There are no issues that require the Board's attention at this time. ## Activity: Apache Beam was established as a top-level project at December’s Board meeting. This is the second in the series of three consecutive monthly reports for new projects. Since last month's report, we have: - published the second post-graduation release, version 0.5.0, - added 3 new committers from two different organizations, - promoted the Python SDK to the master branch with support for two runners. Over the last month, Apache Beam graduation has been covered in more than a dozen technical publications and received endorsements from multiple organizations. Beam continues to interconnect additional execution engines and data storage/messaging systems. Since the last report, IO connectors for Elasticsearch and MQ Telemetry Transport have been released, and additional connectors for Redis, Apache Cassandra, Apache DistributedLog, Apache Parquet, RabbitMQ, and Advanced Message Queuing Protocol (AMQP) are in progress. Going forward, the main focus continues to be on the community growth. On the technical side, the next major milestone is the availability of the first stable release, which will include backward-compatibility guarantees. ## Health report: The community continues to grow steadily, as follows: - The number of contributors continues to increase. - Releases continue at a regular pace of 1-1.5 months per release. - Mailing list activity continues to increase significantly. ## PMC changes: Currently 14 PMC members. No new PMC members have been added since graduation two months ago. ## Committer base changes: Currently 20 committers. Three new committers have been added in the last month: - Ahmet Altay was added as a committer on Tue Jan 31 2017. - Pei He was added as a committer on Tue Jan 31 2017. - Stas Levin was added as a committer on Tue Jan 31 2017. ## Releases: In the two months following graduation, Apache Beam has published two releases: - 0.4.0 was released on Sun Jan 01 2017. - 0.5.0 was released on Mon Feb 06 2017. ## Mailing list activity: Mailing list activity continues to increase across all metrics. - dev@beam.apache.org - 332 subscribers (up 56 in the last 3 months) - 1032 emails sent to list (762 in previous quarter) - user@beam.apache.org - 276 subscribers (up 50 in the last 3 months) - 301 emails sent to list (203 in previous quarter) ## JIRA activity: - 481 JIRA tickets created in the last 3 months - 322 JIRA tickets closed/resolved in the last 3 months ## Appendix: More details about graduation media coverage are available in the “media recap” blog post: https://beam.apache.org/blog/2017/02/01/graduation-media-recap.html
## Description: Apache Beam is a unified programming model for both batch and streaming data processing, enabling efficient execution across diverse distributed execution engines and providing extensibility points for connecting to different technologies and user communities. ## Issues: There are no issues that require the Board's attention at this time. ## Activity: Apache Beam was established as a top-level project at last month's Board meeting. This is the first in the series of three consecutive monthly reports for new projects. Since becoming a top-level project, we have: * completed administrative and infrastructure-related tasks to transition from a podling to a TLP, * published the press release and a follow-up blog, * published the first non-incubating release, version 0.4.0. In addition, since the last report, we have participated in major conferences and meetups, including: * presented at Apache: Big Data Europe 2016 and ApacheCon's Podling Shark Tank, as well as and the Birds of Feather session, * presented at QCon San Francisco 2016, * presented at Strata + Hadoop World Singapore 2016, along with a hands-on Beam tutorial, * co-organized a meetup with an Apache Apex user group, and presented at another meetup. Beam continues to interconnect additional execution engines and data storage/messaging systems. Since the last report, a runner for Apache Apex was merged from a feature branch and released, and IO connectors for Elasticsearch and MQ Telemetry Transport have been contributed. Going forward, the main focus continues to be on community growth. On the technical side, the next major milestone is the availability of the first stable release, which will include backward-compatibility guarantees. ## Health report: The community continues to grow steadily, as follows: * The number of contributors continues to increase, with an expectation of additional committers in the near future. * Releases continue at a regular pace of 1-1.5 months per release. * Mailing list activity continues to increase, with some metrics doubling quarter-over-quarter (see below). ## PMC changes: Currently 14 PMC members. No new PMC members have been added since graduation a month ago. ## Committer base changes: Currently 17 committers. No new committers have been added since graduation a month ago. ## Releases: The first post-graduation release, version 0.4.0, was published on January 1, 2017. ## Mailing list activity: Mailing list activity continues to increase, with some metrics doubling quarter-over-quarter. - dev@beam.apache.org: - 310 subscribers (up 49 in the last 3 months) - 1079 emails sent to list (519 in previous quarter) - user@beam.apache.org: - 261 subscribers (up 54 in the last 3 months) - 231 emails sent to list (246 in previous quarter) ## JIRA activity: - 512 JIRA tickets created in the last 3 months - 338 JIRA tickets closed/resolved in the last 3 months
WHEREAS, the Board of Directors deems it to be in the best interests of the Foundation and consistent with the Foundation's purpose to establish a Project Management Committee charged with the creation and maintenance of open-source software, for distribution at no charge to the public, related to a unified programming model for both batch and streaming data processing, enabling efficient execution across diverse distributed execution engines and providing extensibility points for connecting to different technologies and user communities. NOW, THEREFORE, BE IT RESOLVED, that a Project Management Committee (PMC), to be known as the "Apache Beam Project", be and hereby is established pursuant to Bylaws of the Foundation; and be it further RESOLVED, that the Apache Beam Project be and hereby is responsible for the creation and maintenance of software related to a unified programming model for both batch and streaming data processing, enabling efficient execution across diverse distributed execution engines and providing extensibility points for connecting to different technologies and user communities; and be it further RESOLVED, that the office of "Vice President, Apache Beam" be and hereby is created, the person holding such office to serve at the direction of the Board of Directors as the chair of the Apache Beam Project, and to have primary responsibility for management of the projects within the scope of responsibility of the Apache Beam Project; and be it further RESOLVED, that the persons listed immediately below be and hereby are appointed to serve as the initial members of the Apache Beam Project: * Tyler Akidau <takidau@apache.org> * Davor Bonaci <davor@apache.org> * Robert Bradshaw <robertwb@apache.org> * Ben Chambers <bchambers@apache.org> * Luke Cwik <lcwik@apache.org> * Stephan Ewen <sewen@apache.org> * Dan Halperin <dhalperi@apache.org> * Kenneth Knowles <kenn@apache.org> * Aljoscha Krettek <aljoscha@apache.org> * Maximilian Michels <mxm@apache.org> * Jean-Baptiste Onofré <jbonofre@apache.org> * Frances Perry <frances@apache.org> * Amit Sela <amitsela@apache.org> * Josh Wills <jwills@apache.org> NOW, THEREFORE, BE IT FURTHER RESOLVED, that Davor Bonaci be appointed to the office of Vice President, Apache Beam, to serve in accordance with and subject to the direction of the Board of Directors and the Bylaws of the Foundation until death, resignation, retirement, removal or disqualification, or until a successor is appointed; and be it further RESOLVED, that the initial Apache Beam PMC be and hereby is tasked with the creation of a set of bylaws intended to encourage open development and increased participation in the Apache Beam Project; and be it further RESOLVED, that the Apache Beam Project be and hereby is tasked with the migration and rationalization of the Apache Incubator Beam podling; and be it further RESOLVED, that all responsibilities pertaining to the Apache Incubator Beam podling encumbered upon the Apache Incubator Project are hereafter discharged. Special Order 7C, Establish the Apache Beam Project, was approved by Unanimous Vote of the directors present.
Apache Beam is an open source, unified model and set of language-specific
SDKs for defining and executing data processing workflows, and also data
ingestion and integration flows, supporting Enterprise Integration Patterns
(EIPs) and Domain Specific Languages (DSLs). Beam pipelines simplify the
mechanics of large-scale batch and streaming data processing and can run on
a number of runtimes such as Apache Flink, Apache Gearpump, Apache Apex,
Apache Spark, and Google Cloud Dataflow. Beam also brings SDKs in different
languages, allowing users to easily implement their data integration
processes.
Beam has been incubating since 2016-02-01.
The most important issue to address in the move towards graduation:
1. Make it easier for the Beam community to to learn, use, and grow by
expanding and improving the Beam documentation, code samples, and the
website
Any issues that the Incubator PMC (IPMC) or ASF Board wish/need to be aware
of?
None.
How has the community developed since the last report?
* 441 closed/merged pull requests
* High engagement on dev and user mailing lists (742 / 179 messages)
* Several public talks, articles, and videos including:
- @Scale San Jose (“No shard left behind: APIs for massive parallel
efficiency in Apache Beam”)
- Strata + Hadoop World NYC (“Learn stream processing with Apache Beam”)
- Paris Spark Meetup (“Introduction to Apache Beam”)
- Hadoop Summit Melbourne (“Stream/Batch processing portable across
on-prem (Spark, Flink) and Cloud with Apache Beam”)
- Hadoop User Group Taipei (“Stream Processing with Beam and Google Cloud
Dataflow”)
- Data Science Lab London (“Apache Beam: Stream and Batch Processing;
Unified and Portable!”)
How has the project developed since the last report?
Major developments on the project since last report include the following:
* Second and third incubating release (0.2.0 and 0.3.0) and a release
guide [1]
* New DirectRunner support for testing streaming pipelines[2]
* Continued improvements to the Flink, Spark, and Dataflow runners
* Added support for new IO connectors, including MongoDB, Kinesis, and JDBC
with Cassandra, MQTT support pending in pull requests
* Addition of the Apache Apex runner on a feature branch, and continued
work on the Apache Gearpump runner and Python SDK feature branches. [3]
* Continued reorganization and refactoring of the project
* Continued improvements to documentation and testing
[1]: http://beam.incubator.apache.org/contribute/release-guide/
[2]: http://beam.incubator.apache.org/blog/2016/10/20/test-stream.html
[3]: http://beam.incubator.apache.org/contribute/work-in-progress/#feature-branches
Dates of last releases:
* 2016/08/07 - 0.2.0-incubating
* 2016/10/31 - 0.3.0-incubating
When were the last committers or PMC members elected?
The following committers were elected on 2016/10/20:
* Thomas Weise
* Jesse Anderson
* Thomas Groh
Signed-off-by:
[X](beam) Jean-Baptiste Onofré
[ ](beam) Venkatesh Seetharam
[ ](beam) Ted Dunning
Apache Beam is an open source, unified model and set of language-specific SDKs
for defining and executing data processing workflows, and also data ingestion
and integration flows, supporting Enterprise Integration Patterns
(EIPs) and Domain Specific Languages (DSLs). Beam pipelines simplify the
mechanics of large-scale batch and streaming data processing and can run on a
number of runtimes such as Apache Flink, Apache Gearpump, Apache Spark, and
Google Cloud Dataflow (a cloud service). Beam also brings SDKs in different
languages, allowing users to easily implement their data integration
processes.
Beam has been incubating since 2016-02-01.
Three most important issues to address in the move towards graduation:
1. Additional and continued Beam releases
2. Grow the community of Beam users and contributors
3. Add to and improve upon documentation, code samples, and project
website
Any issues that the Incubator PMC (IPMC) or ASF Board wish/need to be aware
of? None.
How has the community developed since the last report?
* 425 closed/merged pull requests
* High engagement on dev and user mailing lists (590 / 455 messages)
* Several public talks, articles, and videos including:
* Hadoop Summit San Jose ("Apache Beam: A Unified Model for Batch and
Streaming Data Processing" & "The Next Generation of Data Processing &
OSS")
* O’Reilly & The New Stack ("Future-proof and scale-proof your code")
* QCon NY ("Apache Beam: The Case for Unifying Streaming API's")
* JBCN Barcelona ("Introduction to Apache Beam")
How has the project developed since the last report?
Major developments on the project since last report include the following:
* First incubating release (0.1.0-incubating)
* Second incubating release (0.2.0-incubating)
* Addition of Apache Beam Python SDK
* Addition of the Apache Gearpump runner
* Added support for writing to Apache Kafka clusters
* Added support for reading from and writing to Java Message Services,
including Apache ActiveMQ, GeronimoJMS, and RabbitMQ
* Ratified new Beam model APIs to improve efficiency and failure handling:
DoFn setup, teardown, and reuse
* Optimized key components such as data serialization and shuffle
* Continued improvements to the Flink, Spark, and Dataflow runners
* Continued reorganization and refactoring of the project
* Continued improvements to documentation and testing
Date of last release:
* 2016/06/15 - 0.1.0-incubating
* 2016/08/08 - 0.2.0-incubating)
When were the last committers or PMC members elected?
N/A - no changes since last report.
Signed-off-by:
[X](beam) Jean-Baptiste Onofre
[ ](beam) Venkatesh Seetharam
[X](beam) Bertrand Delacretaz
[X](beam) Ted Dunning
Apache Beam is an open source, unified model and set of language-specific SDKs for defining and executing data processing workflows, and also data ingestion and integration flows, supporting Enterprise Integration Patterns (EIPs) and Domain Specific Languages (DSLs). Dataflow pipelines simplify the mechanics of large-scale batch and streaming data processing and can run on a number of runtimes like Apache Flink, Apache Spark, and Google Cloud Dataflow (a cloud service). Beam also brings DSL in different languages, allowing users to easily implement their data integration processes. Beam has been incubating since 2016-02-01. Three most important issues to address in the move towards graduation: 1. Continued releases 2. Grow up user and contributor communities 3. Improve and extend documentation and samples on the website Any issues that the Incubator PMC (IPMC) or ASF Board wish/need to be aware of? None How has the community developed since the last report? * Both user and dev mailing lists activity increased * We sustain a high level of activity on the pull request cycles (submit, review, ...) How has the project developed since the last report? * All resources have been created (website, Jira, git & github mirror, ...) * The code donation has been completed * The website has been published, we are still in the process of donated documentation and samples resources * We renamed all package to match the Apache convention * We started the re-organization and refactoring of the project structure (isolating and moving some modules) Date of last release: N/A When were the last committers or PMC members elected? N/A Signed-off-by: [X](beam) Jean-Baptiste Onofre [X](beam) Jim Jagielski [X](beam) Venkatesh Seetharam [ ](beam) Bertrand Delacretaz [X](beam) Ted Dunning