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https://issues.apache.org/jira/browse/FLINK-6284?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Robert Metzger updated FLINK-6284:
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Component/s: State Backends, Checkpointing
> Incorrect sorting of completed checkpoints in
> ZooKeeperCompletedCheckpointStore
> -------------------------------------------------------------------------------
>
> Key: FLINK-6284
> URL: https://issues.apache.org/jira/browse/FLINK-6284
> Project: Flink
> Issue Type: Bug
> Components: State Backends, Checkpointing
> Reporter: Xiaogang Shi
>
> Now all completed checkpoints are sorted in their paths when they are
> recovered in {{ZooKeeperCompletedCheckpointStore}} . In the cases where the
> latest checkpoint's id is not the largest in lexical order (e.g., "100" is
> smaller than "99" in lexical order), Flink will not recover from the latest
> completed checkpoint.
> The problem can be easily observed by setting the checkpoint ids in
> {{ZooKeeperCompletedCheckpointStoreITCase#testRecover()}} to be 99, 100 and
> 101.
> To fix the problem, we should explicitly sort found checkpoints in their
> checkpoint ids, without the usage of
> {{ZooKeeperStateHandleStore#getAllSortedByName()}}
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