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From "Wellington Chevreuil (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-7752) Improve description for "dfs.namenode.num.extra.edits.retained" and "dfs.namenode.num.checkpoints.retained" properties on hdfs-default.xml
Date Sat, 14 Feb 2015 12:21:12 GMT

    [ https://issues.apache.org/jira/browse/HDFS-7752?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14321385#comment-14321385

Wellington Chevreuil commented on HDFS-7752:

Hey Harsh, sounds better! Thank you for reviewing it!

> 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
>         Attachments: HDFS-7752.patch, HDFS-7752.patch
> 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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