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From "Kihwal Lee (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-11146) Excess replicas will not be deleted until all storages's FBR received after failover
Date Fri, 02 Dec 2016 16:47:59 GMT

    [ https://issues.apache.org/jira/browse/HDFS-11146?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15715608#comment-15715608
] 

Kihwal Lee commented on HDFS-11146:
-----------------------------------

Sorry, I am busy and won't be able to review it properly soon. I will probably get to it next
week.  I would pay close attention to compatibility, interactions with block report lease,
etc.

> Excess replicas will not be deleted until all storages's FBR received after failover
> ------------------------------------------------------------------------------------
>
>                 Key: HDFS-11146
>                 URL: https://issues.apache.org/jira/browse/HDFS-11146
>             Project: Hadoop HDFS
>          Issue Type: Bug
>            Reporter: Brahma Reddy Battula
>            Assignee: Brahma Reddy Battula
>         Attachments: HDFS-11146.patch
>
>
> Excess replicas will not be deleted until all storages's FBR received after failover.
> Thinking following soultion can help.
>  *Solution:* 
> I think after failover, As DNs aware of failover ,so they can send another block report
(FBR) irrespective of interval.May be some shuffle can be done, similar to initial delay.



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