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https://issues.apache.org/jira/browse/SOLR-13587?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16875878#comment-16875878
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Kevin Risden commented on SOLR-13587:
-------------------------------------
And when I say "can't" I mean literally there is no close option on an HDFS
filesystem instance. It leaks threads since the filesystem instance starts some
thread pools and has no close method to stop them. It would be great if we
could actually call close on an HDFS filesystem, but nope.
> Close BackupRepository after every usage
> ----------------------------------------
>
> Key: SOLR-13587
> URL: https://issues.apache.org/jira/browse/SOLR-13587
> Project: Solr
> Issue Type: Bug
> Security Level: Public(Default Security Level. Issues are Public)
> Components: Backup/Restore
> Affects Versions: 8.1
> Reporter: Mikhail Khludnev
> Assignee: Mikhail Khludnev
> Priority: Major
> Attachments: SOLR-13587.patch
>
>
> Turns out BackupRepository is created every operation, but never closed. I
> suppose it leads to necessity to have {{BadHdfsThreadsFilter}} in
> {{TestHdfsCloudBackupRestore}}. Also, test need to repeat backup/restore
> operation to make sure that closing hdfs filesystem doesn't break it see
> SOLR-9961 for the case.
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