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From "Raghu Angadi (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-1696) NPE in TestDistributedUpgrade
Date Thu, 16 Aug 2007 22:35:31 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-1696?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12520395
] 

Raghu Angadi commented on HADOOP-1696:
--------------------------------------

bq. junit.framework.AssertionFailedError: expected:<1790222743> but was:<3731403302>

The above failure can occur if java's File.listFiles() returns different order of files. The
documentation says there are no gaurantees on the order. Any comments on what the (ununnounced)
order would be, pressumably in the same order as readdir() call.

I myself could not reproduce this assert failure. Was this ever seen outside the Solaris build
machine?



> NPE in TestDistributedUpgrade
> -----------------------------
>
>                 Key: HADOOP-1696
>                 URL: https://issues.apache.org/jira/browse/HADOOP-1696
>             Project: Hadoop
>          Issue Type: Bug
>          Components: dfs
>            Reporter: dhruba borthakur
>            Assignee: Raghu Angadi
>
> The TestDistributedUpgrade test fails once a while with the following stack trace:
> java.lang.NullPointerException
>     at org.apache.hadoop.dfs.FSImage.getDistributedUpgradeState(FSImage.java:1036)
>     at org.apache.hadoop.dfs.FSImage.setFields(FSImage.java:411)
>     at org.apache.hadoop.dfs.Storage$StorageDirectory.write(Storage.java:169)
>     at org.apache.hadoop.dfs.UpgradeUtilities.createVersionFile(UpgradeUtilities.java:306)
>     at org.apache.hadoop.dfs.TestDistributedUpgrade.testDistributedUpgrade(TestDistributedUpgrade.java:100)

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