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From "Jimmy Ouyang (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HADOOP-14392) Memory leak issue in Zlib compressor
Date Sat, 06 May 2017 04:16:04 GMT
Jimmy Ouyang created HADOOP-14392:

             Summary: Memory leak issue in Zlib compressor
                 Key: HADOOP-14392
                 URL: https://issues.apache.org/jira/browse/HADOOP-14392
             Project: Hadoop Common
          Issue Type: Bug
          Components: common
    Affects Versions: 3.0.0-alpha2, 3.0.0-alpha1, 2.6.0
            Reporter: Jimmy Ouyang
            Priority: Critical

While using Hadoop-2.6.0 and Hadoop-3.0, we noticed in hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/io/compress/CompressorStream.java,
there is memory leak due to missing calls to compressor.end() in function close(). compressor.end()
function calls zlib native function deflateEnd(), in which zlib buffers are freed.

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