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https://issues.apache.org/jira/browse/HDFS-10960?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Lei (Eddy) Xu resolved HDFS-10960.
----------------------------------
Resolution: Fixed
Fix Version/s: 2.9.0
2.8.0
Re-worked to commit 01 patch to branch-2 and branch-2.8.
Thanks [~kihwal] and [~manojg] for working closely on this patch.
> 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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