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https://issues.apache.org/jira/browse/HADOOP-10591?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Colin Patrick McCabe reassigned HADOOP-10591:
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Assignee: Colin Patrick McCabe
> Compression codecs must used pooled direct buffers or deallocate direct
> buffers when stream is closed
> -----------------------------------------------------------------------------------------------------
>
> Key: HADOOP-10591
> URL: https://issues.apache.org/jira/browse/HADOOP-10591
> Project: Hadoop Common
> Issue Type: Bug
> Reporter: Hari Shreedharan
> Assignee: Colin Patrick McCabe
>
> Currently direct buffers allocated by compression codecs like Gzip (which
> allocates 2 direct buffers per instance) are not deallocated when the stream
> is closed. Eventually for long running processes which create a huge number
> of files, these direct buffers are left hanging till a full gc, which may or
> may not happen in a reasonable amount of time - especially if the process
> does not use a whole lot of heap.
> Either these buffers should be pooled or they should be deallocated when the
> stream is closed.
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