[jira] [Commented] (HBASE-16135) PeerClusterZnode under rs of removed peer may never be deleted

["Duo Zhang (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HBASE-16135?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15352777#comment-15352777 ] 

Duo Zhang commented on HBASE-16135:
-----------------------------------

I include the code in the patch of HBASE-14476 because the multi operation on zk will fail if there are unknown peers. And I do not think it is a good idea to remove all the logs in zk because there maybe a large number of files under the node and cause the multi to fail.

> PeerClusterZnode under rs of removed peer may never be deleted
> --------------------------------------------------------------
>
>                 Key: HBASE-16135
>                 URL: https://issues.apache.org/jira/browse/HBASE-16135
>             Project: HBase
>          Issue Type: Bug
>          Components: Replication
>    Affects Versions: 2.0.0
>            Reporter: Duo Zhang
>            Assignee: Duo Zhang
>         Attachments: HBASE-16135.patch
>
>
> One of our cluster run out of space recently, and we found that the .oldlogs directory had almost the same size as the data directory.
> Finally we found the problem is that, we removed a peer abort 3 months ago, but there are still some replication queue znode under some rs nodes. This prevents the deletion of .oldlogs.



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