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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