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Posted to common-issues@hadoop.apache.org by "Steve Loughran (JIRA)" <ji...@apache.org> on 2017/09/05 09:50:00 UTC
[jira] [Updated] (HADOOP-13407) s3a directory housekeeping
operations to be done in async thread
[ https://issues.apache.org/jira/browse/HADOOP-13407?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Steve Loughran updated HADOOP-13407:
------------------------------------
Parent Issue: HADOOP-14831 (was: HADOOP-13204)
> s3a directory housekeeping operations to be done in async thread
> ----------------------------------------------------------------
>
> Key: HADOOP-13407
> URL: https://issues.apache.org/jira/browse/HADOOP-13407
> Project: Hadoop Common
> Issue Type: Sub-task
> Components: fs/s3
> Affects Versions: 2.8.0
> Reporter: Steve Loughran
> Priority: Minor
>
> Some of the delays on s3a calls are due to cleaning up parent pseudo directories; repeated getParent/GET calls to look for the entries, then to delete them.
> We could possibly make this asynchronous; the core semantics would be retained, just the cleanup delayed.
> Risks?
> # while the cleanup is in progress, getFileStatus of parent dirs could imply that the parent dir is still empty
> # failure
> of course, these risks exist today. We really need an s3a fsck
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