Ufuk Celebi created FLINK-3902:
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Summary: 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 Runtime
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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