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Posted to issues@commons.apache.org by "Rene Preissel (JIRA)" <ji...@apache.org> on 2016/03/16 17:26:33 UTC

[jira] [Created] (COMPRESS-343) Native Memory Leak in Sevenz-DeflateDecoder

Rene Preissel created COMPRESS-343:
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             Summary: Native Memory Leak in Sevenz-DeflateDecoder
                 Key: COMPRESS-343
                 URL: https://issues.apache.org/jira/browse/COMPRESS-343
             Project: Commons Compress
          Issue Type: Bug
          Components: Archivers
    Affects Versions: 1.10
            Reporter: Rene Preissel


The class ...sevenz.Coders.DeflateDecoder does not close (end()) the Deflater and Inflater. This can lead to native memory issues: see https://bugs.openjdk.java.net/browse/JDK-8074108.

In our case we create a zip archive with >100000 files. The Java heap is around 300MB (with 2GB max). The native memory is increasing to 8GB and above. Because the Java heap has no pressure - no GC is triggered, therefore the Deflaters are not collected and the native memory is not freed.  
 



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