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From "Konstantin Boudnik (JIRA)" <j...@apache.org>
Subject [jira] Resolved: (HDFS-1502) TestBlockRecovery triggers NPE in assert
Date Mon, 06 Dec 2010 04:38:12 GMT

     [ https://issues.apache.org/jira/browse/HDFS-1502?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Konstantin Boudnik resolved HDFS-1502.
--------------------------------------

       Resolution: Fixed
    Fix Version/s: 0.23.0
                   Federation Branch
     Hadoop Flags: [Reviewed]

I have just committed it. Thanks Hairong!

> TestBlockRecovery triggers NPE in assert
> ----------------------------------------
>
>                 Key: HDFS-1502
>                 URL: https://issues.apache.org/jira/browse/HDFS-1502
>             Project: Hadoop HDFS
>          Issue Type: Bug
>    Affects Versions: 0.22.0
>            Reporter: Eli Collins
>            Assignee: Hairong Kuang
>            Priority: Minor
>             Fix For: Federation Branch, 0.22.0, 0.23.0
>
>         Attachments: fixTestBlockRecovery.patch, HDFS-1502.patch
>
>
> {noformat}
> Testcase: testRBW_RWRReplicas took 10.333 sec
>         Caused an ERROR
> null
> java.lang.NullPointerException
>         at org.apache.hadoop.hdfs.server.datanode.DataNode.syncBlock(DataNode.java:1881)
>         at org.apache.hadoop.hdfs.server.datanode.TestBlockRecovery.testSyncReplicas(TestBlockRecovery.java:144)
>         at org.apache.hadoop.hdfs.server.datanode.TestBlockRecovery.testRBW_RWRReplicas(TestBlockRecovery.java:305)
> {noformat}
> {noformat}
>         Block reply = r.datanode.updateReplicaUnderRecovery(
>             r.rInfo, recoveryId, newBlock.getNumBytes());
>         assert reply.equals(newBlock) &&
>                reply.getNumBytes() == newBlock.getNumBytes() :
>           "Updated replica must be the same as the new block.";    <----- line 1881
> {noformat}
> Not sure how reply could be null since  updateReplicaUnderRecovery always returns a newly
instantiated object.

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