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https://issues.apache.org/jira/browse/IMPALA-13677?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Work on IMPALA-13677 started by Yida Wu.
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> Cleanup of s3 scratch files on abnormal executor exit
> -----------------------------------------------------
>
> Key: IMPALA-13677
> URL: https://issues.apache.org/jira/browse/IMPALA-13677
> Project: IMPALA
> Issue Type: Improvement
> Components: Backend
> Reporter: Yida Wu
> Assignee: Yida Wu
> Priority: Major
>
> Currently, when an executor spills data to a remote storage, scratch files
> would remain in the remote storage if the executor exits abnormally or is
> terminated after the graceful shutdown deadline.
> Immediate removal may be challenging, and no concrete solution is currently
> available. However, we may consider adding an additional thread in the
> coordinator to manage the cleanup of leftover scratch files in remote storage
> or consider alternative methods to ensure their safe and complete removal.
> Since s3 is the most common scenario, this task may specifically focus on
> handling the leftover scratch files in s3.
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