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From "Harsh J Chouraria (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HDFS-1596) Move secondary namenode checkpoint configs from core-default.xml to hdfs-default.xml
Date Wed, 16 Mar 2011 18:17:29 GMT

    [ https://issues.apache.org/jira/browse/HDFS-1596?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13007602#comment-13007602
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Harsh J Chouraria commented on HDFS-1596:
-----------------------------------------

I have not a clue why these test cases started to fail with this patch. They do not seem related
to the removal of these property refs (except from the area that marks it as deprecated).

Is it due to the HADOOP-7117 co-requirement [which involved changes to core-site.xml]?

> Move secondary namenode checkpoint configs from core-default.xml to hdfs-default.xml
> ------------------------------------------------------------------------------------
>
>                 Key: HDFS-1596
>                 URL: https://issues.apache.org/jira/browse/HDFS-1596
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: name-node
>            Reporter: Patrick Angeles
>            Assignee: Harsh J Chouraria
>             Fix For: 0.23.0
>
>         Attachments: HDFS-7117.r1.diff, HDFS-7117.r2.diff
>
>
> The following configs are in core-default.xml, but are really read by the Secondary Namenode.
These should be moved to hdfs-default.xml for consistency.
> <property>
>   <name>fs.checkpoint.dir</name>
>   <value>${hadoop.tmp.dir}/dfs/namesecondary</value>
>   <description>Determines where on the local filesystem the DFS secondary
>       name node should store the temporary images to merge.
>       If this is a comma-delimited list of directories then the image is
>       replicated in all of the directories for redundancy.
>   </description>
> </property>
> <property>
>   <name>fs.checkpoint.edits.dir</name>
>   <value>${fs.checkpoint.dir}</value>
>   <description>Determines where on the local filesystem the DFS secondary
>       name node should store the temporary edits to merge.
>       If this is a comma-delimited list of directoires then teh edits is
>       replicated in all of the directoires for redundancy.
>       Default value is same as fs.checkpoint.dir
>   </description>
> </property>
> <property>
>   <name>fs.checkpoint.period</name>
>   <value>3600</value>
>   <description>The number of seconds between two periodic checkpoints.
>   </description>
> </property>
> <property>
>   <name>fs.checkpoint.size</name>
>   <value>67108864</value>
>   <description>The size of the current edit log (in bytes) that triggers
>        a periodic checkpoint even if the fs.checkpoint.period hasn't expired.
>   </description>
> </property>

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