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From "Sujay Rau (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (BIGTOP-614) Add HDFS HA tests
Date Fri, 15 Jun 2012 18:00:44 GMT

    [ https://issues.apache.org/jira/browse/BIGTOP-614?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13295809#comment-13295809
] 

Sujay Rau commented on BIGTOP-614:
----------------------------------

Currently modifying these to get rid of necessary command line options and making it so the
test can be run from any namenode (not just the active one... right now the test doesn't work
if it is run from the standby namenode)
                
> 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
>
>
> 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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