[ANNOUNCE] Weekly Community Update 2019/30

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[ANNOUNCE] Weekly Community Update 2019/30

Konstantin Knauf-2
Dear community

happy to share this week's community update with news about a Flink on PyPi, two proposal on the Table API/SQL and a bit more.

As always, please feel free to add additional updates and news to this thread!

Flink Development

[sql] Temporary tables are always registered with the built-in catalog. If the built-in catalog is not the default catalog, access to temporary tables needs to be fully qualified, which breaks current functionality, e.g. in the SQL Client. Dawid and Bowen stumbled across this during release testing and are proposing three different solutions for the upcoming release and beyond [1]

[python] The discussion on how to release (and if) to release the Python Table API on PyPi is converging to publish it under the name "apache-flink" and to include the binary Java/Scala release in the Python package for convenience. [2]

[fault-tolerance] In the discussion thread about supporting "at-most-once" delivery Stephan proposed to work towards this feature outside of Flink core and to offer it to the community through the upcoming Flink ecosystem website. This seems to get a lot of agreement. [3]

[table-api] Xuannan has started a discussion on "FLIP-48: Pluggable Intermediate Result Storage". This will make the result cache for interactive programming (FLIP-36] pluggable. [4]

[releases] Flink 1.9.0 release testing is still ongoing. There is no RC1 yet. [5]

Notable Bugs

Not to much. Still a lot of blockers and critical issues in the Flink project due to release testing.

* [FLINK-13372] [1.8.1] [1.7.2] [1.6.4] There is a bug in the timestamp conversion of the Table API (due to timezone handling, of course). The issue contains a good explanation of the problem. [6]

Events, Blog Posts, Misc

* Kurt is now part of the Apache Flink PMC. Congratulations! [7]
* Zhijiang is now an Apache Flink committer. Congrats! [8]
* Upcoming Meetups
    * On 30th of July Berecz Dániel of Ekata talks about a "Parameter Server on Flink, an approach for model-parallel machine learning" at the Budapest Scala Meetup [9]
    * On 30th of July Grzegorz Liter talks about “Stream processing with Apache Flink”  at the EPAM tech talks in Wroclaw. [10]


Konstantin (@snntrable)


Konstantin Knauf | Solutions Architect

+49 160 91394525


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