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https://issues.apache.org/jira/browse/HADOOP-14392?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16000757#comment-16000757
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Jason Lowe commented on HADOOP-14392:
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This looks closely related to HADOOP-14376.
> 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: 2.6.0, 3.0.0-alpha1, 3.0.0-alpha2
> 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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