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https://issues.apache.org/jira/browse/HDFS-1596?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12987121#action_12987121
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Harsh J Chouraria commented on HDFS-1596:
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Haven't these keys been deprecated, in favor of "dfs.namenode.checkpoint.*"
prefixes, available in hdfs-default.xml? Is the move still required? Just
clarifying before I attempt to do this.
> 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
>
> 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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