Myasuka commented on issue #7281: [FLINK-11107][state] Avoid memory stateBackend to create arbitrary folders under HA path when no checkpoint path configured URL: https://github.com/apache/flink/pull/7281#issuecomment-447208854 @klion26 Hmm, I think it's not the same thing, even you could clean up checkpoint directories after job finished/failed in time, you cannot avoid running jobs to create so many directories (one operator with one memory state-backend, and one state-backend would create an unique directory). If several really big jobs are running, which created too many sub-directories under HA storage directory, new submitted job might also cannot create those new sub-directories.
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