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From "Wellington Chevreuil (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-7752) Improve description for "dfs.namenode.num.extra.edits.retained" and "dfs.namenode.num.checkpoints.retained" properties on hdfs-default.xml
Date Sun, 08 Feb 2015 16:29:34 GMT
Wellington Chevreuil created HDFS-7752:
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             Summary: Improve description for "dfs.namenode.num.extra.edits.retained" and
"dfs.namenode.num.checkpoints.retained" properties on hdfs-default.xml
                 Key: HDFS-7752
                 URL: https://issues.apache.org/jira/browse/HDFS-7752
             Project: Hadoop HDFS
          Issue Type: Improvement
          Components: documentation
    Affects Versions: 2.6.0
            Reporter: Wellington Chevreuil
            Assignee: Wellington Chevreuil
            Priority: Minor


Current description for "dfs.namenode.num.extra.edits.retained" and "dfs.namenode.num.checkpoints.retained"
properties on hdfs-default.xml is not clear on how much and which files will be kept on namenodes
meta-data directory. 

For "dfs.namenode.num.checkpoints.retained", it's not clear that it applies to the number
of "fsimage_*" files.

For "dfs.namenode.num.extra.edits.retained", it's not clear the value set indirectly applies
to "edits_*" files, and how the configured value translates into the number of edit files
to be kept.



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