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From "Duo Zhang (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-19633) Clean up the replication queues in the postPeerModification stage when removing a peer
Date Wed, 27 Dec 2017 12:38:00 GMT

     [ https://issues.apache.org/jira/browse/HBASE-19633?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Duo Zhang updated HBASE-19633:
------------------------------
    Attachment: HBASE-19633-HBASE-19397.patch

> Clean up the replication queues in the postPeerModification stage when removing a peer
> --------------------------------------------------------------------------------------
>
>                 Key: HBASE-19633
>                 URL: https://issues.apache.org/jira/browse/HBASE-19633
>             Project: HBase
>          Issue Type: Sub-task
>          Components: proc-v2, Replication
>            Reporter: Duo Zhang
>         Attachments: HBASE-19633-HBASE-19397.patch
>
>
> In the previous implementation, we can not always cleanly remove all the replication
queues when removing a peer since the removing work is done by RS and if an RS is crashed
then some queues may left there forever. That's why we need to check if there are already
some queues for a newly created peer since we may reuse the peer id and causes problem.
> With the new procedure based replication peer modification, I think we can do it cleanly.
After the RefreshPeerProcedures are done on all RSes, we can make sure that no RS will create
queue for this peer again, then we can iterate over all the queues for all Rses and do another
round of clean up.



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