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https://issues.apache.org/jira/browse/HDFS-13884?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16606784#comment-16606784
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Yiqun Lin commented on HDFS-13884:
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Almost looks good to me. Some minor comments:
* Before the sentence “This can avoid consuming ..”, we can add “Enabling this
will be very helpful if dfs image is large since it can avoid consuming..."
* "The defalut compressed format is DEFLATE." updates to "The compressed codec
is specified by the setting dfs.image.compression.codec."
> Improve the description of the setting dfs.image.compress
> ---------------------------------------------------------
>
> Key: HDFS-13884
> URL: https://issues.apache.org/jira/browse/HDFS-13884
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: documentation
> Affects Versions: 3.1.1
> Reporter: Yiqun Lin
> Assignee: Ryan Wu
> Priority: Minor
> Attachments: HDFS-13884.001.patch
>
>
> In HDFS-1435, we introduced a new option to store fsimage compressed. And
> this can avoid that It consumes a lot of network bandwidth when SBN do
> uploads a new fsimage to ANN. When lots of network bandwidth was consumed, it
> will affect ANN to deal with normal RPC requests or sync edit logs.
> This is a very useful setting when our fsimage file is very large. However
> current description of this setting is too simple, we can document this more.
> {noformat}
> <property>
> <name>dfs.image.compress</name>
> <value>false</value>
> <description>Should the dfs image be compressed?
> </description>
> </property>
> {noformat}
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