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https://issues.apache.org/jira/browse/HBASE-11442?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14060353#comment-14060353
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Andrew Purtell commented on HBASE-11442:
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Skimmed the patch, +1 for 0.98
> ReplicationSourceManager doesn't cleanup the queues for recovered sources
> -------------------------------------------------------------------------
>
> Key: HBASE-11442
> URL: https://issues.apache.org/jira/browse/HBASE-11442
> Project: HBase
> Issue Type: Bug
> Components: Replication
> Reporter: Virag Kothari
> Assignee: Virag Kothari
> Attachments: HBASE-11442.patch, HBASE-11442_2.patch
>
>
> Currently, ReplicationSourceManager only cleanups the queues for recovered
> sources when the queue is being closed. This can cause the already read WAL's
> files to be read again when a region server doing failover also dies. This
> can cause replication to possibly happen again
> For e.g lets say RS1 dies with 5 files in queue and RS2 is doing the
> failover. Now, lets say RS2 dies after going thru 3 files in queue and RS3 is
> doing the failover. In this case, RS3 will again read those 3 files as they
> were not removed from the queue. (Though it will read the first file from the
> set pos. in ZK)
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