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Posted to issues@hbase.apache.org by "Virag Kothari (JIRA)" <ji...@apache.org> on 2014/06/30 23:37:25 UTC

[jira] [Updated] (HBASE-11442) ReplicationSourceManager doesn't cleanup the queues for recovered sources

     [ https://issues.apache.org/jira/browse/HBASE-11442?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Virag Kothari updated HBASE-11442:
----------------------------------

    Attachment: HBASE-11442.patch

> 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
>
>
> 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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