[
https://issues.apache.org/jira/browse/HDFS-15294?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17224606#comment-17224606
]
Yiqun Lin commented on HDFS-15294:
----------------------------------
Hi [~coconut_icecream], as FedBlance is a completely new feature and hasn't
released in the latest hadoop version, not sure if there is other potential
issues. I prefer to backport this feature later once this feature is stable
enough after released.
> Federation balance tool
> -----------------------
>
> Key: HDFS-15294
> URL: https://issues.apache.org/jira/browse/HDFS-15294
> Project: Hadoop HDFS
> Issue Type: New Feature
> Reporter: Jinglun
> Assignee: Jinglun
> Priority: Major
> Fix For: 3.4.0
>
> 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, distcp-balance.v2.pdf
>
>
> This jira introduces a new HDFS federation balance tool to balance data
> across different federation namespaces. It uses Distcp to copy data from the
> source path to the target path.
> 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 if we specified RBF mode.
> 3. Deal with src data, move to trash, delete or skip them.
> The design of fedbalance tool comes from the discussion in HDFS-15087.
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
---------------------------------------------------------------------
To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org
For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org
