[jira] [Commented] (HDFS-4006) TestCheckpoint#testSecondaryHasVeryOutOfDateImage occasionally fails due to unexpected exit

["Eli Collins (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HDFS-4006?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13469773#comment-13469773 ] 

Eli Collins commented on HDFS-4006:
-----------------------------------

Here's the relevant NPE, looks like getFsImageName is returning NULL because the file was purged after the upload.

{code}
LOG.warn("Checkpoint done. New Image Size: "
             + dstStorage.getFsImageName(txid).length());
{code}

                
> 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
>              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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