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https://issues.apache.org/jira/browse/HDFS-11178?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15717313#comment-15717313
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Brahma Reddy Battula commented on HDFS-11178:
---------------------------------------------

[~liuml07] do you comments on latest patch..?

> TestAddStripedBlockInFBR#testAddBlockInFullBlockReport fails frequently in 
> trunk
> --------------------------------------------------------------------------------
>
>                 Key: HDFS-11178
>                 URL: https://issues.apache.org/jira/browse/HDFS-11178
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: test
>            Reporter: Yiqun Lin
>            Assignee: Yiqun Lin
>         Attachments: HDFS-11178.001.patch, HDFS-11178.002.patch, 
> HDFS-11178.003.patch
>
>
> The test {{TestAddStripedBlockInFBR#testAddBlockInFullBlockReport}} fails 
> easily in trunk. It's easy to reproduce the failure, it fails 2~3 times when 
> I run the test 4~-5 times in my local. Also it failed in the recent 
> Jenkins(https://builds.apache.org/job/PreCommit-HDFS-Build/17667/testReport/),
>  The stack infos:
> {code}
> java.lang.AssertionError: expected:<9> but was:<7>
>       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.namenode.TestAddStripedBlockInFBR.testAddBlockInFullBlockReport(TestAddStripedBlockInFBR.java:108)
> {code}
> It's easy to have a fix: Use {{GenericTestUtils.waitFor}} to wait the full 
> blocks being reported. 



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