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https://issues.apache.org/jira/browse/FLINK-26993?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17544930#comment-17544930
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Anton Kalashnikov commented on FLINK-26993:
-------------------------------------------
[~chesnay]. The release-1.15 is also affected by this bug(FLINK-27216). I have
created the backport(https://github.com/apache/flink/pull/19865). Can you take
a look?
> CheckpointCoordinatorTest#testMinCheckpointPause
> ------------------------------------------------
>
> Key: FLINK-26993
> URL: https://issues.apache.org/jira/browse/FLINK-26993
> Project: Flink
> Issue Type: Technical Debt
> Components: Runtime / Checkpointing, Tests
> Reporter: Chesnay Schepler
> Assignee: Chesnay Schepler
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.16.0
>
>
> The test triggers checkpoints, waits for the CC to have stored a pending
> checkpoint, and then sends an acknowledge.
> The acknowledge can fail with an NPE because the
> PendingCheckpoint#checkpointTargetLocation hasn't been set yet. This doesn't
> happen synchronously with the PendingCheckpoint being added to
> CheckpointCoordinator#pendingCheckpoints.
> {code}
> Apr 01 19:57:36 [ERROR]
> org.apache.flink.runtime.checkpoint.CheckpointCoordinatorTest.testMinCheckpointPause
> Time elapsed: 0.012 s <<< ERROR!
> Apr 01 19:57:36 org.apache.flink.runtime.checkpoint.CheckpointException:
> Could not finalize the pending checkpoint 1. Failure reason: Failure to
> finalize checkpoint.
> Apr 01 19:57:36 at
> org.apache.flink.runtime.checkpoint.CheckpointCoordinator.finalizeCheckpoint(CheckpointCoordinator.java:1354)
> Apr 01 19:57:36 at
> org.apache.flink.runtime.checkpoint.CheckpointCoordinator.completePendingCheckpoint(CheckpointCoordinator.java:1241)
> Apr 01 19:57:36 at
> org.junit.vintage.engine.VintageTestEngine.execute(VintageTestEngine.java:72)
> ...
> Apr 01 19:57:36 Caused by: java.lang.NullPointerException
> Apr 01 19:57:36 at
> org.apache.flink.runtime.checkpoint.PendingCheckpoint.finalizeCheckpoint(PendingCheckpoint.java:327)
> Apr 01 19:57:36 at
> org.apache.flink.runtime.checkpoint.CheckpointCoordinator.finalizeCheckpoint(CheckpointCoordinator.java:1337)
> Apr 01 19:57:36 ... 50 more
> {code}
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