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https://issues.apache.org/jira/browse/CURATOR-354?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15570585#comment-15570585
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ASF GitHub Bot commented on CURATOR-354:
----------------------------------------

Github user asfgit closed the pull request at:

    https://github.com/apache/curator/pull/168


> GzipCompressionProvider leaks native memory
> -------------------------------------------
>
>                 Key: CURATOR-354
>                 URL: https://issues.apache.org/jira/browse/CURATOR-354
>             Project: Apache Curator
>          Issue Type: Bug
>    Affects Versions: 2.11.0
>            Reporter: Evan Pollan
>            Assignee: Jordan Zimmerman
>         Attachments: RSS before and after fix.png
>
>
> Both compress and decompress instantiate GZIP streams, use them, and don't 
> close them.  The java util deflate/inflate streams use JNI to leverage zlib, 
> including the allocation of a native, off-heap buffer.  
> These JNI buffer handles are released when the containing stream is closed.  
> They're also released by the finalize() method on 
> java.util.zip.Inflater/Deflater, _but_ it looks as if the native memory can 
> pile up quickly enough in certain use cases where the JVM is OOM killed 
> before the finalizer does its thing.
> Fix is to explicitly close these streams after they're used.
> This was discovered in version 2.11.0, but it looks like the problem affects 
> all versions for which {{GzipCompressionProvider}} existed.



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