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From "Enis Soztutar (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-8647) ChaosMonkey NPE
Date Wed, 29 May 2013 20:56:20 GMT

    [ https://issues.apache.org/jira/browse/HBASE-8647?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13669733#comment-13669733
] 

Enis Soztutar commented on HBASE-8647:
--------------------------------------

+1
                
> ChaosMonkey NPE
> ---------------
>
>                 Key: HBASE-8647
>                 URL: https://issues.apache.org/jira/browse/HBASE-8647
>             Project: HBase
>          Issue Type: Bug
>            Reporter: stack
>            Assignee: stack
>         Attachments: 8647.txt
>
>
> Running tests I see this from time to time:
> {code}
>  19 2013-05-29 13:42:37,868 INFO  [Thread-476] util.ChaosMonkey$RestartRandomRs(274):
Performing action: Restart random region server
>  20 2013-05-29 13:42:37,869 WARN  [Thread-476] util.ChaosMonkey$PeriodicRandomActionPolicy(578):
Exception occured during performing action: java.lang.NullPointerException
>  21 ,...at org.apache.hadoop.hbase.util.ChaosMonkey$Action.getCurrentServers(ChaosMonkey.java:160)
>  22 ,...at org.apache.hadoop.hbase.util.ChaosMonkey$RestartRandomRs.perform(ChaosMonkey.java:275)
>  23 ,...at org.apache.hadoop.hbase.util.ChaosMonkey$PeriodicRandomActionPolicy.runOneIteration(ChaosMonkey.java:576)
>  24 ,...at org.apache.hadoop.hbase.util.ChaosMonkey$PeriodicPolicy.run(ChaosMonkey.java:488)
>  25 ,...at org.apache.hadoop.hbase.util.ChaosMonkey$CompositeSequentialPolicy.run(ChaosMonkey.java:458)
>  26 ,...at java.lang.Thread.run(Thread.java:680)
> {code}
> Our monkey has killed everything.

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