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https://issues.apache.org/jira/browse/HBASE-16096?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15383572#comment-15383572
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Joseph commented on HBASE-16096:
--------------------------------
It seems to be only failing the flakey TestAciditity. The final version of this
commit is a much reduced version of the original changes. I think it should be
correct, could I get some review on this? [~ashu210890]
> Replication keeps accumulating znodes
> -------------------------------------
>
> Key: HBASE-16096
> URL: https://issues.apache.org/jira/browse/HBASE-16096
> Project: HBase
> Issue Type: Bug
> Components: Replication
> Affects Versions: 2.0.0, 1.2.0, 1.3.0
> Reporter: Ashu Pachauri
> Assignee: Joseph
> Attachments: HBASE-16096.patch
>
>
> If there is an error while creating the replication source on adding the
> peer, the source if not added to the in memory list of sources but the
> replication peer is.
> However, in such a scenario, when you remove the peer, it is deleted from
> zookeeper successfully but for removing the in memory list of peers, we wait
> for the corresponding sources to get deleted (which as we said don't exist
> because of error creating the source).
> The problem here is the ordering of operations for adding/removing source and
> peer.
> Modifying the code to always remove queues from the underlying storage, even
> if there exists no sources also requires a small refactoring of
> TableBasedReplicationQueuesImpl to not abort on removeQueues() of an empty
> queue
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