[Fix][Zeta] Fix CheckpointCoordinator report NPE when ack not existed pending checkpoint#5909
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… pending checkpoint
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hailin0
approved these changes
Nov 23, 2023
lightzhao
approved these changes
Nov 24, 2023
alextinng
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Dec 19, 2023
… pending checkpoint (apache#5909)
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Purpose of this pull request
This PR fix CheckpointCoordinator report NPE when ack not existed pending checkpoint. Ack the not existed pending checkpoint could be found when
TaskAcknowledgeOperationexecute more than once. This PR is considered a system robustness fix.Does this PR introduce any user-facing change?
no
How was this patch tested?
add new test
Check list
New License Guide
release-note.