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https://issues.apache.org/jira/browse/FLINK-17918?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17123503#comment-17123503
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Arvid Heise commented on FLINK-17918:
-------------------------------------
I fear that these errors are independent, but could be related to recovery as
well.
But we also have issues with watermarks in unaligned checkpoints (not sure if
they are used in the failing join tests).
> Blink Jobs are loosing data on recovery
> ---------------------------------------
>
> Key: FLINK-17918
> URL: https://issues.apache.org/jira/browse/FLINK-17918
> Project: Flink
> Issue Type: Bug
> Components: Runtime / Checkpointing, Table SQL / Runtime
> Affects Versions: 1.11.0
> Reporter: Piotr Nowojski
> Assignee: Jark Wu
> Priority: Blocker
> Fix For: 1.11.0
>
>
> After trying to enable unaligned checkpoints by default, a lot of Blink
> streaming SQL/Table API tests containing joins or set operations are throwing
> errors that are indicating we are loosing some data (full records, without
> deserialisation errors). Example errors:
> {noformat}
> [ERROR] Failures:
> [ERROR] JoinITCase.testFullJoinWithEqualPk:775 expected:<List(1,1, 2,2,
> 3,3, null,4, null,5)> but was:<List(2,2, 3,3, null,1, null,4, null,5)>
> [ERROR] JoinITCase.testStreamJoinWithSameRecord:391 expected:<List(1,1,1,1,
> 1,1,1,1, 2,2,2,2, 2,2,2,2, 3,3,3,3, 3,3,3,3, 4,4,4,4, 4,4,4,4, 5,5,5,5,
> 5,5,5,5)> but was:<List()>
> [ERROR] SemiAntiJoinStreamITCase.testAntiJoin:352 expected:<0> but was:<1>
> [ERROR] SetOperatorsITCase.testIntersect:55 expected:<MutableList(1,1,Hi,
> 2,2,Hello, 3,2,Hello world)> but was:<List()>
> [ERROR] JoinITCase.testJoinPushThroughJoin:1272 expected:<List(1,0,Hi,
> 2,1,Hello, 2,1,Hello world)> but was:<List(2,1,Hello, 2,1,Hello world)>
> {noformat}
>
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