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From "Jonathan Gray (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HBASE-2700) Handle master failover for regions in transition
Date Mon, 18 Oct 2010 19:08:22 GMT

     [ https://issues.apache.org/jira/browse/HBASE-2700?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jonathan Gray updated HBASE-2700:
---------------------------------

    Attachment: HBASE-2700-test-v6.patch

Patch +1'd by Stack on rb.  Thanks for review.

This adds three unit tests of master failover.  The first is a basic test that we backup masters
will take over.  The second is a test of master failover happening concurrently with regions
in transition.  The third is a test of concurrent RIT as well as concurrent RS failure.  Tables/regions
are used from both enabled and disabled tables as this is one of the trickier parts, ensuring
disabled tables stay offline properly regardless of what state they were in during master
failover.

Tests are passing locally consistently.  Committing this patch, let's see what hudson says.

> Handle master failover for regions in transition
> ------------------------------------------------
>
>                 Key: HBASE-2700
>                 URL: https://issues.apache.org/jira/browse/HBASE-2700
>             Project: HBase
>          Issue Type: Sub-task
>          Components: master, zookeeper
>            Reporter: Jonathan Gray
>            Assignee: Jonathan Gray
>            Priority: Critical
>             Fix For: 0.90.0
>
>         Attachments: HBASE-2700-test-v6.patch
>
>
> To this point in HBASE-2692 tasks we have moved everything for regions in transition
into ZK, but we have not fully handled the master failover case.  This is to deal with that
and to write tests for it.

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