[jira] [Created] (FLINK-2867) Access to pendingFilesPerCheckpoint should be synchronized

[Shang Yuanchun (Jira)]

Ted Yu created FLINK-2867:
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             Summary: Access to pendingFilesPerCheckpoint should be synchronized
                 Key: FLINK-2867
                 URL: https://issues.apache.org/jira/browse/FLINK-2867
             Project: Flink
          Issue Type: Bug
            Reporter: Ted Yu


In RollingSink#restoreState():
{code}
    Set<Long> pastCheckpointIds = bucketState.pendingFilesPerCheckpoint.keySet();
    LOG.debug("Moving pending files to final location on restore.");
    for (Long pastCheckpointId : pastCheckpointIds) {
      // All the pending files are buckets that have been completed but are waiting to be renamed
      // to their final name
      for (String filename : bucketState.pendingFilesPerCheckpoint.get(pastCheckpointId)) {
{code}
Access to pendingFilesPerCheckpoint should be covered under synchronized keyword.
The other methods in this class use synchronized access.



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