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

["Hangxiang Yu (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/FLINK-30251?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Hangxiang Yu reassigned FLINK-30251:
------------------------------------

    Assignee: ming li

> 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: 1.16.0, 1.15.2
>            Reporter: ming li
>            Assignee: ming li
>            Priority: Major
>         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, 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|width=731,height=347!



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