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From "Konstantin Shvachko (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-3520) Generation stamp upgrade fails TestDFSUpgradeFromImage
Date Wed, 11 Jun 2008 21:10:45 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-3520?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Konstantin Shvachko updated HADOOP-3520:
----------------------------------------

    Priority: Blocker  (was: Major)

Making it a blocker for 0.18.
We need an investigation on whether this affects regular generation stamp upgrade or is it
just test related.
We will need to fix it if this is the upgrade bug.

> Generation stamp upgrade fails TestDFSUpgradeFromImage
> ------------------------------------------------------
>
>                 Key: HADOOP-3520
>                 URL: https://issues.apache.org/jira/browse/HADOOP-3520
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: dfs
>    Affects Versions: 0.18.0
>            Reporter: Konstantin Shvachko
>            Assignee: Konstantin Shvachko
>            Priority: Blocker
>             Fix For: 0.18.0
>
>         Attachments: failure.log
>
>
> TestDFSUpgradeFromImage occasionally fails doing distributed upgrade related to generation
stamps with the following NPE:
> {code}
> java.lang.NullPointerException
> 	at org.apache.hadoop.dfs.UpgradeManagerDatanode.initializeUpgrade(UpgradeManagerDatanode.java:54)
> 	at org.apache.hadoop.dfs.DataStorage.verifyDistributedUpgradeProgress(DataStorage.java:402)
> 	at org.apache.hadoop.dfs.DataStorage.doTransition(DataStorage.java:232)
> 	at org.apache.hadoop.dfs.DataStorage.recoverTransitionRead(DataStorage.java:139)
> 	at org.apache.hadoop.dfs.DataNode.startDataNode(DataNode.java:268)
> 	at org.apache.hadoop.dfs.DataNode.<init>(DataNode.java:185)
> 	at org.apache.hadoop.dfs.DataNode.makeInstance(DataNode.java:2952)
> 	at org.apache.hadoop.dfs.DataNode.instantiateDataNode(DataNode.java:2907)
> 	at org.apache.hadoop.dfs.MiniDFSCluster.startDataNodes(MiniDFSCluster.java:401)
> 	at org.apache.hadoop.dfs.MiniDFSCluster.<init>(MiniDFSCluster.java:267)
> 	at org.apache.hadoop.dfs.MiniDFSCluster.<init>(MiniDFSCluster.java:162)
> 	at org.apache.hadoop.dfs.TestDFSUpgradeFromImage.testUpgradeFromImage(TestDFSUpgradeFromImage.java:180)
> {code}

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