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From "Eli Collins (JIRA)" <j...@apache.org>
Subject [jira] Created: (HADOOP-6803) ZlibCompressor hangs on close
Date Wed, 02 Jun 2010 23:11:56 GMT
ZlibCompressor hangs on close
-----------------------------

                 Key: HADOOP-6803
                 URL: https://issues.apache.org/jira/browse/HADOOP-6803
             Project: Hadoop Common
          Issue Type: Bug
          Components: io
    Affects Versions: 0.21.0, 0.22.0
            Reporter: Eli Collins
            Assignee: Eli Collins
             Fix For: 0.21.0, 0.22.0


Looking at ZlibCompressor I noticed that the finished member is never modified, and is therefore
always false. This means ZlibCompressor#finished will always return false so CompressorStream#close
loops indefinitely in finish:

{code} 
      while (!compressor.finished()) {
        compress();
      }
{code}

I modifed TestCodec#testGzipCodecWrite to also cover writing using the native lib and confirmed
the hang with jstack. The fix is simple, ZlibCompressor should record when it's been finished.

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