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From "Harsh J (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-7752) Improve description for "dfs.namenode.num.extra.edits.retained" and "dfs.namenode.num.checkpoints.retained" properties on hdfs-default.xml
Date Tue, 10 Feb 2015 09:55:35 GMT

     [ https://issues.apache.org/jira/browse/HDFS-7752?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Harsh J updated HDFS-7752:
--------------------------
    Attachment: HDFS-7752.patch

Thanks for adding the mechanism clarification Wellington! It sounds good to me, but I tried
removing some of the finer details to make it simpler to read. Does the new text look good
to you (does it capture also what you were intending it to)?

> 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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