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From "Ted Yu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-16135) PeerClusterZnode under rs of removed peer may never be deleted
Date Fri, 01 Jul 2016 03:43:11 GMT

    [ https://issues.apache.org/jira/browse/HBASE-16135?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15358326#comment-15358326
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Ted Yu commented on HBASE-16135:
--------------------------------

To remove element from CopyOnWriteArrayList, we don't need to use iterator.
We can iterate oldsources using index (in reverse) and call closeRecoveredQueue() passing
the element at the index.

Just for your reference.

> 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, 1.3.0, 1.4.0, 1.1.5, 1.2.2, 0.98.20
>            Reporter: Duo Zhang
>            Assignee: Duo Zhang
>             Fix For: 2.0.0, 1.3.0, 1.4.0, 1.1.6, 0.98.21, 1.2.3
>
>         Attachments: HBASE-16135-0.98.patch, HBASE-16135-branch-1.1.patch, HBASE-16135-branch-1.2.patch,
HBASE-16135-branch-1.patch, HBASE-16135-v1.patch, HBASE-16135-v2.patch, 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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