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Posted to common-dev@hadoop.apache.org by "Koji Noguchi (JIRA)" <ji...@apache.org> on 2008/11/20 17:50:44 UTC

[jira] Created: (HADOOP-4694) Revive number of files listed metrics

Revive number of files listed metrics
-------------------------------------

                 Key: HADOOP-4694
                 URL: https://issues.apache.org/jira/browse/HADOOP-4694
             Project: Hadoop Core
          Issue Type: New Feature
          Components: dfs, metrics
    Affects Versions: 0.18.0
            Reporter: Koji Noguchi


When namenode becomes unresponsive by HADOOP-4693 (large filelist calls), metrics has been helpful in finding out the cause.
When gc time hikes, "FileListed" metrics also hiked.

In 0.18, after we *fixed* "FileListed" metrics so that it shows number of operations instead of number of files listed (HADOOP-3683), I stopped seeing this relationship graph.  

Can we bring back "NumbverOfFilesListed" metrics?


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