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From "Mingliang Liu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-11178) TestAddStripedBlockInFBR#testAddBlockInFullBlockReport fails frequently in trunk
Date Mon, 05 Dec 2016 08:27:58 GMT

    [ https://issues.apache.org/jira/browse/HDFS-11178?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15721602#comment-15721602

Mingliang Liu commented on HDFS-11178:

Sorry I'm not actively reviewing this patch. Please go ahead with this patch if it looks good
to you. I was just asking the general question about triggering block report in test as I
glimpsed the ibrManager was waiting. Thanks.

> 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

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