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Posted to hdfs-issues@hadoop.apache.org by "Konstantin Shvachko (JIRA)" <ji...@apache.org> on 2018/12/20 03:20:00 UTC

[jira] [Updated] (HDFS-14162) Balancer should work with ObserverNode

     [ https://issues.apache.org/jira/browse/HDFS-14162?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Konstantin Shvachko updated HDFS-14162:
---------------------------------------
    Attachment: testBalancerWithObserver.patch

> Balancer should work with ObserverNode
> --------------------------------------
>
>                 Key: HDFS-14162
>                 URL: https://issues.apache.org/jira/browse/HDFS-14162
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>            Reporter: Konstantin Shvachko
>            Priority: Major
>         Attachments: testBalancerWithObserver.patch
>
>
> Balancer provides a substantial RPC load on NameNode. It would be good to divert Balancer RPCs {{getBlocks()}}, etc. to ObserverNode. The main problem is that Balancer uses {{NamenodeProtocol}}, while ORPP currently supports only {{ClientProtocol}}.



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