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https://issues.apache.org/jira/browse/HDFS-2334?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13133196#comment-13133196
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Jitendra Nath Pandey commented on HDFS-2334:
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In JournalAndStream#close, stream may already be closed and may be null. You
probably need to check for null for stream.
> Add Closeable to JournalManager
> -------------------------------
>
> Key: HDFS-2334
> URL: https://issues.apache.org/jira/browse/HDFS-2334
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Reporter: Ivan Kelly
> Assignee: Ivan Kelly
> Fix For: 0.23.0
>
> Attachments: HDFS-2334.diff, HDFS-2334.diff
>
>
> A JournalManager may take hold of resources for the duration of their
> lifetime. This isn't the case at the moment for FileJournalManager, but
> BookKeeperJournalManager will, and it's conceivable that FileJournalManager
> could take a lock on a directory etc.
> This JIRA is to add Closeable to JournalManager so that these resources can
> be cleaned up when FSEditLog is closed.
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