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From "Mingliang Liu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-9664) TestRollingUpgrade.testRollback failed frequently
Date Tue, 26 Jan 2016 00:04:39 GMT

    [ https://issues.apache.org/jira/browse/HDFS-9664?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15116320#comment-15116320
] 

Mingliang Liu commented on HDFS-9664:
-------------------------------------

Perhaps there is a fundamental problem in the rolling upgrade. Otherwise,
* If we don't really need check exit exception when shutdowning the cluster, we may ignore
this exception by building a cluster with {{checkExitOnShutdown(false)}} option.
* Meanwhile, restarting NN/DN is not keep the RPC port. If the port is different, the NN may
never leave safe mode because not enough DN registers (see [HDFS-9689]). Will this break the
test? 


> TestRollingUpgrade.testRollback failed frequently
> -------------------------------------------------
>
>                 Key: HDFS-9664
>                 URL: https://issues.apache.org/jira/browse/HDFS-9664
>             Project: Hadoop HDFS
>          Issue Type: Bug
>            Reporter: Yongjun Zhang
>
> Seen the following failure in the following jenkins test runs:
> ===>https://builds.apache.org/job/Hadoop-Hdfs-trunk/2743/testReport (2016-01-18 22:14:23)
> ===>https://builds.apache.org/job/Hadoop-Hdfs-trunk/2742/testReport (2016-01-18 17:52:58)
> ===>https://builds.apache.org/job/Hadoop-Hdfs-trunk/2739/testReport (2016-01-18 01:51:26)
> ===>https://builds.apache.org/job/Hadoop-Hdfs-trunk/2738/testReport (2016-01-17 21:56:17)
>     Failed test: org.apache.hadoop.hdfs.TestRollingUpgrade.testRollback
> {quote}
> Error Message
> Test resulted in an unexpected exit
> Stacktrace
> java.lang.AssertionError: Test resulted in an unexpected exit
> 	at org.apache.hadoop.hdfs.MiniDFSCluster.shutdown(MiniDFSCluster.java:1895)
> 	at org.apache.hadoop.hdfs.MiniDFSCluster.shutdown(MiniDFSCluster.java:1882)
> 	at org.apache.hadoop.hdfs.MiniDFSCluster.shutdown(MiniDFSCluster.java:1875)
> 	at org.apache.hadoop.hdfs.TestRollingUpgrade.testRollback(TestRollingUpgrade.java:350)
> {quote}



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