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Posted to mapreduce-dev@hadoop.apache.org by "Sharad Agarwal (JIRA)" <ji...@apache.org> on 2009/07/22 11:26:14 UTC

[jira] Created: (MAPREDUCE-786) Jobtracker history should be done written aysnchronously to the filesystem

Jobtracker history should be done written aysnchronously to the filesystem
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                 Key: MAPREDUCE-786
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-786
             Project: Hadoop Map/Reduce
          Issue Type: Improvement
            Reporter: Sharad Agarwal


Jobtracker lock is held while writing the history events. This makes the jobtracker slow on flushes, especially when history is written to HDFS. History events should be written asynchronously to avoid this problem.

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