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https://issues.apache.org/jira/browse/FLINK-3902?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15591808#comment-15591808
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Jan Zajíc commented on FLINK-3902:
----------------------------------
WE have same issue on Linux in docker, but *both* ! RocksDBBackend and
FSStateBackend. On Windows developer local machine it works just fine.
> Discarded FileSystem checkpoints are lingering around
> -----------------------------------------------------
>
> Key: FLINK-3902
> URL: https://issues.apache.org/jira/browse/FLINK-3902
> Project: Flink
> Issue Type: Bug
> Components: Distributed Coordination
> Affects Versions: 1.0.2
> Reporter: Ufuk Celebi
>
> A user reported that checkpoints with {{FSStateBackend}} are not properly
> cleaned up.
> {code}
> 2016-05-10 12:21:06,559 INFO BlockStateChange: BLOCK* addToInvalidates:
> blk_1084791727_11053122 10.10.113.10:50010
> 2016-05-10 12:21:06,559 INFO org.apache.hadoop.ipc.Server: IPC Server handler
> 9 on 8020, call org.apache.hadoop.hdfs.protocol.ClientProtocol.delete from
> 10.10.113.9:49233 Call#12337 Retry#0
> org.apache.hadoop.fs.PathIsNotEmptyDirectoryException:
> `/flink/checkpoints_test/570d6e67d571c109daab468e5678402b/chk-62 is non
> empty': Directory is not empty
> at
> org.apache.hadoop.hdfs.server.namenode.FSDirDeleteOp.delete(FSDirDeleteOp.java:85)
> at
> org.apache.hadoop.hdfs.server.namenode.FSNamesystem.delete(FSNamesystem.java:3712)
> {code}
> {code}
> 2016-05-10 12:20:22,636 [Checkpoint Timer] INFO
> org.apache.flink.runtime.checkpoint.CheckpointCoordinator - Triggering
> checkpoint 62 @ 1462875622636
> 2016-05-10 12:20:32,507 [flink-akka.actor.default-dispatcher-240088] INFO
> org.apache.flink.runtime.checkpoint.CheckpointCoordinator - Completed
> checkpoint 62 (in 9843 ms)
> 2016-05-10 12:20:52,637 [Checkpoint Timer] INFO
> org.apache.flink.runtime.checkpoint.CheckpointCoordinator - Triggering
> checkpoint 63 @ 1462875652637
> 2016-05-10 12:21:06,563 [flink-akka.actor.default-dispatcher-240028] INFO
> org.apache.flink.runtime.checkpoint.CheckpointCoordinator - Completed
> checkpoint 63 (in 13909 ms)
> 2016-05-10 12:21:22,636 [Checkpoint Timer] INFO
> org.apache.flink.runtime.checkpoint.CheckpointCoordinator - Triggering
> checkpoint 64 @ 1462875682636
> {code}
> Running the same program with the {{RocksDBBackend}} works as expected and
> clears the old checkpoints properly.
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