[jira] [Created] (FLINK-7229) Flink doesn't deleted old checkpoint

["Jason Zhou (JIRA)" <ji...@apache.org>]

Jason Zhou created FLINK-7229:
---------------------------------

             Summary: Flink doesn't deleted old checkpoint
                 Key: FLINK-7229
                 URL: https://issues.apache.org/jira/browse/FLINK-7229
             Project: Flink
          Issue Type: Bug
          Components: State Backends, Checkpointing
    Affects Versions: 1.3.1
         Environment: Six Flink nodes running on Ubuntu 14.04.5 LTS (GNU/Linux 3.13.0-121-generic x86_64)
            Reporter: Jason Zhou


I have a 6-node Flink cluster where one contains jobmanager and the others have only taskmanagers. All taskmanagers have the following config :
```
state.backend: rocksdb
state.backend.rocksdb.checkpointdir: file:///opt/flink/data/local-checkpoints
state.backend.fs.checkpointdir: file:///opt/flink/data/local-checkpoints
state.checkpoints.dir: file:///opt/flink/data/glusterfs/external-checkpoints
state.checkpoints.num-retained: 3
```
And both checkpoints and external-checkpoints are enabled in my code.  I can see that for the external-checkpoint, Flink retains 3 checkpoints metadata. However, for the local-checkpoint, only one node(with jobmanager) retains 3 checkpoints and the others don't delete checkpoints. 




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