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https://issues.apache.org/jira/browse/HBASE-8099?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13601975#comment-13601975
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Ted Yu commented on HBASE-8099:
-------------------------------

Patch looks good.
{code}
-      if (newQueues.size() == 0) {
+      if (newQueues == null || newQueues.size() == 0) {
{code}
nit: you can replace newQueues.size() == 0 with newQueues.isEmpty().
                
> ReplicationZookeeper.copyQueuesFromRSUsingMulti should not return any queues 
> if it failed to execute.
> -----------------------------------------------------------------------------------------------------
>
>                 Key: HBASE-8099
>                 URL: https://issues.apache.org/jira/browse/HBASE-8099
>             Project: HBase
>          Issue Type: Bug
>            Reporter: Lars Hofhansl
>            Assignee: Himanshu Vashishtha
>            Priority: Blocker
>             Fix For: 0.94.7
>
>         Attachments: HBase-8099-94.patch, HBase-8099-trunk.patch
>
>
> We just ran into an interesting scenario. We restarted a cluster that was 
> setup as a replication source.
> The stop went cleanly.
> Upon restart *all* regionservers aborted within a few seconds with variations 
> of these errors:
> http://pastebin.com/3iQVuBqS

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