Till Rohrmann created FLINK-5300:
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Summary: FileStateHandle#discard &
FsCheckpointStateOutputStream#close tries to delete non-empty directory
Key: FLINK-5300
URL: https://issues.apache.org/jira/browse/FLINK-5300
Project: Flink
Issue Type: Improvement
Components: State Backends, Checkpointing
Affects Versions: 1.1.3, 1.2.0
Reporter: Till Rohrmann
Priority: Minor
Flink's behaviour to delete {{FileStateHandles}} and closing
{{FsCheckpointStateOutputStream}} always triggers a delete operation on the
parent directory. Often this call will fail because the directory still
contains some other files.
A user reported that the SRE of their Hadoop cluster noticed this behaviour in
the logs. It might be more system friendly if we first checked whether the
directory is empty or not. This would prevent many error message to appear in
the Hadoop logs.
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