[Pulsar Community Weekly Update] 2019-12-07 ~ 2019-12-20

[anonymitaet _ <an...@hotmail.com>]

Dear Pulsar enthusiast,

This is the Pulsar community weekly update for 2019-12-07 ~ 2019-12-20, with updates on DotPulsar, key windowed function, Pulsar Native Go client, batch authorization of partitioned topic, API document, and so on.

This Pulsar community weekly update is also available at https://streamnative.io/weekly/2019/2019-12/2019-12-20-pulsar-weekly/.

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Development
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- [PIP-53] Daniel Blankensteiner from Danske Commodities started the email thread of contributing DotPulsar (a Pulsar client library for .NET) to Apache Pulsar.

    https://lists.apache.org/thread.html/8ebe35027d818e595eec322da26a3f392324ec3d86c4c1b12b1ff498%40%3Cdev.pulsar.apache.org%3E

    https://github.com/danske-commodities/dotpulsar

- [Documentation] Guangning E has backfilled the API documentation for old releases. Now Pulsar has provided API documentations for each release.

    https://lists.apache.org/thread.html/83b33b81229a09fecf4a643c7e6704d75ab86f990ce2d676cf7f0ddd%40%3Cdev.pulsar.apache.org%3E

- [Native Go Client] Xiaolong Ran has initiated a discussion of creating the first official release for Pulsar Native Go client.

    https://lists.apache.org/thread.html/519d840d9e4843651ab8dc15515f25e8c5bf5212e79f2ad63f6d2cec%40%3Cdev.pulsar.apache.org%3E

- [Pulsar Function] A new proposal is raised for introducing key windowed function in Pulsar Functions.

    https://lists.apache.org/thread.html/5228bdddafb49badb2f25dbf4ab40e134d3c346933da2fcb0a6db36a%40%3Cdev.pulsar.apache.org%3E

- [Release] The first release candidate of Pulsar 2.5.0 release was cancelled for fixing bugs identified during voting.

    https://lists.apache.org/thread.html/7a050d26e327d09803de368ce109c7d61177131551bc5a114204a61b%40%3Cdev.pulsar.apache.org%3E

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Notable Feature
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- [Security] Support batch authorization of partitioned topic (Release: 2.6.0).

    https://github.com/apache/pulsar/pull/5767

- [Broker] Pulsar broker supports advertising IPV6 address (Release: 2.5.0).

    https://github.com/apache/pulsar/pull/5713

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Notable Bug Fix
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- [Java][Client] Ensure that the same message ID is not added to UnAckedMessageTracker multiple times (Release: 2.5.0).

    https://github.com/apache/pulsar/pull/5823

- [Tiered Storage] Fix "s3 offloading generates huge zk txn logs in some conditions" (Release: 2.5.0).

    https://github.com/apache/pulsar/pull/5834

- [CLI] Make PulsarClusterMetadataSetup idempotent (Release: 2.5.0).

    https://github.com/apache/pulsar/pull/5879

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Event / News
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- [Milestone] Pulsar has attracted its 200th contributor! It is an important milestone for our community growth.

    https://streamnative.io/blog/tech/2019-12-20-pulsar-milestone-celebration-200-contributors/

- [Conference] Pulsar Summit San Francisco 2020 Call for Presentation is open.

    https://pulsar.apache.org/blog/2019/12/18/Pulsar-summit-cfp/

- [Conference] Paris Open Source Summit 2019 was held on Dec 10 - 11 in France. Bruno Bonnin talked about "Stream Processing with Apache Pulsar" on this conference.

    https://speakerdeck.com/bbonnin/stream-processing-avec-apache-pulsar-b3106b65-5334-4d43-8934-a13884a6f5af

- [Meetup] GDG DevFest 2019 happened on Dec 8 in Beijing. Xiaolong Ran from StreamNative shared "Serverless Event Streaming with Pulsar Functions" on this meetup.

    https://www.slideshare.net/streamnative/google-devfest-about-pulsar-by-xiaolong

- [Conference] China Technical Communication Forum 2019 was held on Dec 7 in Beijing. Yu Liu from StreamNative gave a talk about the Pulsar doc development process, how the Docs Like Code solution improves the development efficiency and quality of Pulsar docs and recent updates in the Pulsar community.

    https://www.slideshare.net/streamnative/code-the-docsyu-liu

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Blog / Article
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- The fourth chapter — Pulsar IO Connectors — is available in **Pulsar in Action** (by David Kjerrumgaard)

    https://www.manning.com/books/pulsar-in-action

- Apache Pulsar adapter for SAP PO (by Peter Ha)

    https://blogs.sap.com/2019/12/16/apache-pulsar-adapter-for-sap-po/?utm_source=dlvr.it&utm_medium=twitter

If we miss anything, welcome to reply to this thread, thank you.

Cheers,

Sijie Guo, Yu Liu (@Anonymitaet)