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From "Enis Soztutar (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-11511) Write flush events to WAL
Date Tue, 15 Jul 2014 21:53:06 GMT

     [ https://issues.apache.org/jira/browse/HBASE-11511?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Enis Soztutar updated HBASE-11511:
----------------------------------

      Resolution: Fixed
    Hadoop Flags: Reviewed
          Status: Resolved  (was: Patch Available)

Committed this to master and branch-1. Thanks Stack for review. 

> Write flush events to WAL
> -------------------------
>
>                 Key: HBASE-11511
>                 URL: https://issues.apache.org/jira/browse/HBASE-11511
>             Project: HBase
>          Issue Type: Sub-task
>            Reporter: Enis Soztutar
>            Assignee: Enis Soztutar
>             Fix For: 0.99.0, 2.0.0
>
>         Attachments: hbase-11511_v1.patch, hbase-11511_v1.patch, hbase-11511_v2.patch,
hbase-11511_v3.patch, hbase-11511_v4.patch
>
>
> We used to write COMPLETE_FLUSH event to WAL until it got removed in 0.96 in issue HBASE-7329.

> For secondary region replicas, it is important to share the data files with the primary
region. So we should reintroduce the flush wal markers so that the secondary region replicas
can pick up the newly flushed files from the WAL and start serving data from those. 
> A design doc which explains the context a bit better can be found in HBASE-11183. 



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