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https://issues.apache.org/jira/browse/FLINK-26993?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17516111#comment-17516111
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Chesnay Schepler commented on FLINK-26993:
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Happens semi-regularly when fork-reuse is enabled.
> 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
> Priority: Major
> 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.
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