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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] Commented: (CASSANDRA-1028) NPE in AntiEntropyService.getNeighbors
Date Tue, 27 Jul 2010 13:41:22 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-1028?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12892767#action_12892767
] 

Hudson commented on CASSANDRA-1028:
-----------------------------------

Integrated in Cassandra #501 (See [http://hudson.zones.apache.org/hudson/job/Cassandra/501/])
    

> NPE in AntiEntropyService.getNeighbors
> --------------------------------------
>
>                 Key: CASSANDRA-1028
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-1028
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Core
>            Reporter: Jonathan Ellis
>            Assignee: Stu Hood
>             Fix For: 0.7 beta 1
>
>         Attachments: 0001-Clear-AES-before-begininning-the-next-test.patch, 0001-Die-bug-die.patch
>
>
> Sometimes, but not always, I see this during a test run:
>     [junit] Testsuite: org.apache.cassandra.service.AntiEntropyServiceTest
>     [junit] Tests run: 10, Failures: 0, Errors: 0, Time elapsed: 3.189 sec
>     [junit] 
>     [junit] ------------- Standard Error -----------------
>     [junit] ERROR 10:19:09,743 Error in executor futuretask
>     [junit] java.util.concurrent.ExecutionException: java.lang.NullPointerException
>     [junit] 	at java.util.concurrent.FutureTask$Sync.innerGet(FutureTask.java:222)
>     [junit] 	at java.util.concurrent.FutureTask.get(FutureTask.java:83)
>     [junit] 	at org.apache.cassandra.concurrent.DebuggableThreadPoolExecutor.afterExecute(DebuggableThreadPoolExecutor.java:87)
>     [junit] 	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:888)
>     [junit] 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
>     [junit] 	at java.lang.Thread.run(Thread.java:637)
>     [junit] Caused by: java.lang.NullPointerException
>     [junit] 	at java.util.AbstractCollection.addAll(AbstractCollection.java:303)
>     [junit] 	at org.apache.cassandra.service.AntiEntropyService.getNeighbors(AntiEntropyService.java:151)
>     [junit] 	at org.apache.cassandra.service.AntiEntropyService.rendezvous(AntiEntropyService.java:176)
>     [junit] 	at org.apache.cassandra.service.AntiEntropyService.access$100(AntiEntropyService.java:86)
>     [junit] 	at org.apache.cassandra.service.AntiEntropyService$Validator.call(AntiEntropyService.java:487)
>     [junit] 	at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
>     [junit] 	at java.util.concurrent.FutureTask.run(FutureTask.java:138)
>     [junit] 	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
>     [junit] 	... 2 more
>     [junit] ------------- ---------------- ---------------
> Ideally it would be nice if this could cause an actual test failure when it happens.
 Not sure how feasible that is.

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