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From "Stephen Chu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (BIGTOP-614) Add HDFS HA tests
Date Sat, 16 Jun 2012 00:33:42 GMT

    [ https://issues.apache.org/jira/browse/BIGTOP-614?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13296044#comment-13296044
] 

Stephen Chu commented on BIGTOP-614:
------------------------------------

Yes, definitely worth working on building this infrastructure now. It will be very helpful
to expand other tests, too (e.g. fault injection HBase tests).

I am interested in being involved as well.
                
> Add HDFS HA tests
> -----------------
>
>                 Key: BIGTOP-614
>                 URL: https://issues.apache.org/jira/browse/BIGTOP-614
>             Project: Bigtop
>          Issue Type: Test
>          Components: Tests
>            Reporter: Stephen Chu
>            Assignee: Stephen Chu
>         Attachments: HATests.patch, bigtop-614.patch
>
>
> In this patch, I am adding 2 tests and a test util class.
> 1) TestHAFailover: Fails over between the NameNodes a configurable number of times. Checks
the service state of each NN after each failover to ensure that the service state is correct.
> 2) TestKilLNNFailover: Kills the Active NN. Waits and fails over to the standby NN. Waits
and checks that the former standby is now active. Restarts the killed NN and checks that it
is now standby. Goes through this process a configurable number of times.
> 3) HATestUtil: Helper methods to fail over and kill the NameNodes.

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