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From "Kihwal Lee (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-10960) TestDataNodeHotSwapVolumes#testRemoveVolumeBeingWritten fails at disk error verification after volume remove
Date Fri, 14 Oct 2016 21:39:20 GMT

    [ https://issues.apache.org/jira/browse/HDFS-10960?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15576572#comment-15576572
] 

Kihwal Lee commented on HDFS-10960:
-----------------------------------

Reverted from branch-2 and branch-2.8. Please rework the patch for these branches.

> TestDataNodeHotSwapVolumes#testRemoveVolumeBeingWritten fails at disk error verification
after volume remove
> ------------------------------------------------------------------------------------------------------------
>
>                 Key: HDFS-10960
>                 URL: https://issues.apache.org/jira/browse/HDFS-10960
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: hdfs
>    Affects Versions: 3.0.0-alpha2
>            Reporter: Manoj Govindassamy
>            Assignee: Manoj Govindassamy
>            Priority: Minor
>             Fix For: 2.8.0, 2.9.0, 3.0.0-alpha2
>
>         Attachments: HDFS-10960.01.patch, HDFS-10960.02.patch
>
>
> TestDataNodeHotSwapVolumes#testRemoveVolumeBeingWritten fails occasionally in the following
verification.
> {code}
>   700     // If an IOException thrown from BlockReceiver#run, it triggers
>   701     // DataNode#checkDiskError(). So we can test whether checkDiskError() is called,
>   702     // to see whether there is IOException in BlockReceiver#run().
>   703     assertEquals(lastTimeDiskErrorCheck, dn.getLastDiskErrorCheck());
>   704 
> {code}
> {noformat}
> Error Message
> expected:<0> but was:<6498109>
> Stacktrace
> java.lang.AssertionError: expected:<0> but was:<6498109>
> 	at org.junit.Assert.fail(Assert.java:88)
> 	at org.junit.Assert.failNotEquals(Assert.java:743)
> 	at org.junit.Assert.assertEquals(Assert.java:118)
> 	at org.junit.Assert.assertEquals(Assert.java:555)
> 	at org.junit.Assert.assertEquals(Assert.java:542)
> 	at org.apache.hadoop.hdfs.server.datanode.TestDataNodeHotSwapVolumes.testRemoveVolumeBeingWrittenForDatanode(TestDataNodeHotSwapVolumes.java:703)
> 	at org.apache.hadoop.hdfs.server.datanode.TestDataNodeHotSwapVolumes.testRemoveVolumeBeingWritten(TestDataNodeHotSwapVolumes.java:620)
> {noformat}



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