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From "Hairong Kuang (JIRA)" <j...@apache.org>
Subject [jira] Created: (HADOOP-1545) Maps hang when using native compression library to compress map out
Date Thu, 28 Jun 2007 23:43:04 GMT
Maps hang when using native compression library to compress map out
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                 Key: HADOOP-1545
                 URL: https://issues.apache.org/jira/browse/HADOOP-1545
             Project: Hadoop
          Issue Type: Bug
          Components: mapred
    Affects Versions: 0.13.0
            Reporter: Hairong Kuang
             Fix For: 0.14.0


This issue is related to HADOOP-1193. I ran the same job. Each map of this job spawns a process
which generates output to be cosumed by the map. The new native compression librar seems to
hang some of the spawned processes. Some processes print using more than 100% CPU. Non-native
library does not produce this problem.

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