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https://issues.apache.org/jira/browse/BEAM-5396?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16617404#comment-16617404
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Thomas Weise commented on BEAM-5396:
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CC: [~angoenka]
> Flink portable runner savepoint / upgrade support
> -------------------------------------------------
>
> Key: BEAM-5396
> URL: https://issues.apache.org/jira/browse/BEAM-5396
> Project: Beam
> Issue Type: Improvement
> Components: runner-flink
> Reporter: Thomas Weise
> Priority: Major
>
> The Flink runner overall and the new portable implementation specifically
> need to support Flink savepoints for production use. Specifically, it should
> be possible to upgrade a stateful portable Beam pipeline that runs on Flink,
> which involves taking a savepoint and then starting the new version of the
> pipeline from that savepoint. The potential issues with pipeline evolution
> and migration are similar to those when using the Flink DataStream API
> (schema / name changes etc.).
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