[jira] [Created] (FLINK-30251) Move the IO with DFS during abort checkpoint to an asynchronous thread.

["ming li (Jira)" <ji...@apache.org>]

ming li created FLINK-30251:
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             Summary: Move the IO with DFS during abort checkpoint to an asynchronous thread.
                 Key: FLINK-30251
                 URL: https://issues.apache.org/jira/browse/FLINK-30251
             Project: Flink
          Issue Type: Improvement
          Components: Runtime / Checkpointing
    Affects Versions: 1.15.2, 1.16.0
            Reporter: ming li
         Attachments: image-2022-11-30-19-10-51-226.png

Currently when the {{checkpoint}} fails, we process the abort message in the Task's {{{}mailbox{}}}. We will close the output stream and delete the file on DFS. 

 

However, when the {{checkpoint}} failure is caused by a DFS system failure (for example, the namenode failure of HDFS), this operation may take a long time or hang, resulting in the Task being unable to continue processing data and the Task will not be able to process the data at this time.

 

So I think we can put the operation of deleting files in an asynchronous thread just like uploading checkpoint data asynchronously.

 

!image-2022-11-30-19-10-51-226.png!



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