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https://issues.apache.org/jira/browse/HDFS-15294?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17101181#comment-17101181
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Íñigo Goiri commented on HDFS-15294:
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Thanks [~LiJinglun] for adding the documentation.
In general, this is pretty big so I'm not sure how we will handl to review this.
For sure we will need a couple more people to look at it.
CC'ing a few people for thoughts: [~ayushsaxena], [~brahma].
Other minor comments:
* For the md file, I think there's a toc field to do the table of contents.
* I believe in the doc we should refer to RBF to distinguish from regular HDFS
federation.
* I think you need to generate the patch with base64 or something like that to
include the image.
* When using logs, let's use the logger format with {}.
* Where you define equals and hash, use the EqualsBuilder and the HashBuilder.
> RBF: Balance data across federation namespaces with DistCp and snapshot diff
> ----------------------------------------------------------------------------
>
> Key: HDFS-15294
> URL: https://issues.apache.org/jira/browse/HDFS-15294
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Reporter: Jinglun
> Assignee: Jinglun
> Priority: Major
> Attachments: BalanceProcedureScheduler.png, HDFS-15294.001.patch,
> HDFS-15294.002.patch, HDFS-15294.003.patch, HDFS-15294.003.reupload.patch,
> HDFS-15294.004.patch, HDFS-15294.005.patch, HDFS-15294.006.patch,
> HDFS-15294.007.patch, distcp-balance.pdf
>
>
> This jira introduces a new balance command 'fedbalance' that is ran by the
> administrator. The process is:
> 1. Use distcp and snapshot diff to sync data between src and dst until they
> are the same.
> 2. Update mount table in Router.
> 3. Delete the src to trash.
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