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https://issues.apache.org/jira/browse/HADOOP-18476?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17615674#comment-17615674
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ASF GitHub Bot commented on HADOOP-18476:
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steveloughran commented on PR #4966:
URL: https://github.com/apache/hadoop/pull/4966#issuecomment-1274487132
@mukund-thakur yes. once someone registers a deleteOnExit file, a strong
ref to the FC is retained along with the list of files to delete. compare with
the FS version, which is really "delete when close() is called"
> Abfs and S3A FileContext bindings to close wrapped filesystems in finalizer
> ---------------------------------------------------------------------------
>
> Key: HADOOP-18476
> URL: https://issues.apache.org/jira/browse/HADOOP-18476
> Project: Hadoop Common
> Issue Type: Sub-task
> Components: fs/azure, fs/s3
> Affects Versions: 3.3.4
> Reporter: Steve Loughran
> Assignee: Steve Loughran
> Priority: Blocker
> Labels: pull-request-available
>
> if you use the FileContext APIs to talk to abfs or s3a, it creates a new
> wrapped FileSystem implementation, and, because there is no close() call,
> never cleans up.
> proposed: add finalizers for these two classes, which we know create helper
> threads, especially if plugins are added
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