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From "Todd Lipcon (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-4006) TestCheckpoint#testSecondaryHasVeryOutOfDateImage occasionally fails due to unexpected exit
Date Fri, 05 Oct 2012 23:42:03 GMT

    [ https://issues.apache.org/jira/browse/HDFS-4006?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13470789#comment-13470789
] 

Todd Lipcon commented on HDFS-4006:
-----------------------------------

Actually in this test case, we don't start the checkpoint daemon thread at all. So it must
be that we have some earlier test case which isn't joining on the checkpoint thread -- then
the thread keeps running and fails during this test case when the setup() method blows away
its storage underneath it. Will look at the other test methods to see if one of them is leaking
a checkpointer thread.
                
> TestCheckpoint#testSecondaryHasVeryOutOfDateImage occasionally fails due to unexpected
exit
> -------------------------------------------------------------------------------------------
>
>                 Key: HDFS-4006
>                 URL: https://issues.apache.org/jira/browse/HDFS-4006
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: name-node
>    Affects Versions: 2.0.0-alpha
>            Reporter: Eli Collins
>            Assignee: Todd Lipcon
>              Labels: test-fail
>
> TestCheckpoint#testSecondaryHasVeryOutOfDateImage occasionally fails due to unexpected
exit, due to an NPE while checkpointing. It looks like the background checkpoint fails, conflicts
with the explicit checkpoints done by the tests (note the backtrace is not for the doCheckpoint
calls in the tests.
> {noformat}
> 2012-09-16 01:55:05,901 FATAL hdfs.MiniDFSCluster (MiniDFSCluster.java:shutdown(1355))
- Test resulted in an unexpected exit
> org.apache.hadoop.util.ExitUtil$ExitException: Fatal exception with message null
> stack trace
> java.lang.NullPointerException
> at org.apache.hadoop.hdfs.server.namenode.SecondaryNameNode.doCheckpoint(SecondaryNameNode.java:480)
> at org.apache.hadoop.hdfs.server.namenode.SecondaryNameNode.doWork(SecondaryNameNode.java:331)
> at org.apache.hadoop.hdfs.server.namenode.SecondaryNameNode$2.run(SecondaryNameNode.java:298)
> at org.apache.hadoop.security.SecurityUtil.doAsLoginUserOrFatal(SecurityUtil.java:452)
> at org.apache.hadoop.hdfs.server.namenode.SecondaryNameNode.run(SecondaryNameNode.java:294)
> at java.lang.Thread.run(Thread.java:662)
> {noformat}

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