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https://issues.apache.org/jira/browse/FLINK-11695?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Yun Tang updated FLINK-11695:
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Summary: Make sharedStateDir could create sub-directories to avoid
MaxDirectoryItemsExceededException (was: [checkpoint] Make sharedStateDir
could create sub-directories to avoid MaxDirectoryItemsExceededException)
> Make sharedStateDir could create sub-directories to avoid
> MaxDirectoryItemsExceededException
> --------------------------------------------------------------------------------------------
>
> Key: FLINK-11695
> URL: https://issues.apache.org/jira/browse/FLINK-11695
> Project: Flink
> Issue Type: Improvement
> Components: Runtime / Checkpointing
> Reporter: Yun Tang
> Assignee: Yun Tang
> Priority: Major
>
> We meet this annoying problem many times when the {{sharedStateDir}} in
> checkpoint path exceeded the directory items limit due to large checkpoint:
> {code:java}
> org.apache.hadoop.hdfs.protocol.FSLimitException$MaxDirectoryItemsExceededException:
> The directory item limit of xxx is exceeded: limit=1048576 items=1048576
> {code}
> Currently, our solution is to let {{FsCheckpointStorage}} could create
> sub-dirs when calling {{resolveCheckpointStorageLocation}}. The default value
> for the number of sub-dirs is zero, just keep backward compatibility as
> current situation. The created sub-dirs have the name as integer value of
> [{{0, num-of-sub-dirs}})
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