[ 
https://issues.apache.org/jira/browse/FLINK-5855?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

mingleizhang updated FLINK-5855:
--------------------------------
    Description: 
{code}    
handlePendingFilesForPreviousCheckpoints(restoredState.pendingFilesPerCheckpoint);

    synchronized (restoredState.pendingFilesPerCheckpoint) {
      restoredState.pendingFilesPerCheckpoint.clear();
{code}

Lock on pendingFilesPerCheckpoint should be obtained prior to the call to 
handlePendingFilesForPreviousCheckpoints().

After discussion. I would give a related jira from this issue. 
https://issues.apache.org/jira/browse/FLINK-6381

  was:
{code}    
handlePendingFilesForPreviousCheckpoints(restoredState.pendingFilesPerCheckpoint);

    synchronized (restoredState.pendingFilesPerCheckpoint) {
      restoredState.pendingFilesPerCheckpoint.clear();
{code}

Lock on pendingFilesPerCheckpoint should be obtained prior to the call to 
handlePendingFilesForPreviousCheckpoints().


> Unprotected access to pendingFilesPerCheckpoint in BucketingSink
> ----------------------------------------------------------------
>
>                 Key: FLINK-5855
>                 URL: https://issues.apache.org/jira/browse/FLINK-5855
>             Project: Flink
>          Issue Type: Bug
>          Components: Streaming Connectors
>            Reporter: Ted Yu
>            Assignee: mingleizhang
>            Priority: Minor
>
> {code}    
> handlePendingFilesForPreviousCheckpoints(restoredState.pendingFilesPerCheckpoint);
>     synchronized (restoredState.pendingFilesPerCheckpoint) {
>       restoredState.pendingFilesPerCheckpoint.clear();
> {code}
> Lock on pendingFilesPerCheckpoint should be obtained prior to the call to 
> handlePendingFilesForPreviousCheckpoints().
> After discussion. I would give a related jira from this issue. 
> https://issues.apache.org/jira/browse/FLINK-6381



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