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From "Yiqun Lin (JIRA)" <j...@apache.org>
Subject [jira] [Comment Edited] (HDFS-11446) TestMaintenanceState#testWithNNAndDNRestart fails intermittently
Date Wed, 24 May 2017 09:37:04 GMT

    [ https://issues.apache.org/jira/browse/HDFS-11446?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16022609#comment-16022609
] 

Yiqun Lin edited comment on HDFS-11446 at 5/24/17 9:36 AM:
-----------------------------------------------------------

The latest Jenkins report said  current patch can't apply to trunk and branch-2.
Rebase the codes and attach the new patch for trunk and branch-2. Actually the patch for trunk
and branch-2 is same, just to confirm the patch can be passed in branch-2 which uses jdk 7.
[~mingma], please have a look if you have free time, :). Thanks.


was (Author: linyiqun):
The latest Jenkins report said  current patch can't apply to trunk and branch-2.
Rebase the codes and attach the new patch for trunk and branch-2.
[~mingma], please have a look if you have free time, :). Thanks.

> TestMaintenanceState#testWithNNAndDNRestart fails intermittently
> ----------------------------------------------------------------
>
>                 Key: HDFS-11446
>                 URL: https://issues.apache.org/jira/browse/HDFS-11446
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>    Affects Versions: 3.0.0-alpha2
>            Reporter: Yiqun Lin
>            Assignee: Yiqun Lin
>         Attachments: HDFS-11446.001.patch, HDFS-11446.002.patch, HDFS-11446.003.patch,
HDFS-11446.004.patch, HDFS-11446-branch-2.002.patch, HDFS-11446-branch-2.patch
>
>
> The test {{TestMaintenanceState#testWithNNAndDNRestart}} fails in trunk. The stack info(
https://builds.apache.org/job/PreCommit-HDFS-Build/18423/testReport/ ):
> {code}
> java.lang.AssertionError: expected null, but was:<Wrong number of replicas for block
BP-1367163238-172.17.0.2-1487836532907:blk_1073741825_1001: expected 3, got 2 ,DatanodeInfoWithStorage[127.0.0.1:42649,DS-c499e6ef-ce14-428b-baef-8cf2a122b248,DISK],DatanodeInfoWithStorage[127.0.0.1:40774,DS-cc484c09-6e32-4804-a337-2871f37b62e1,DISK],pending
block # 1 ,under replicated # 0 ,>
> 	at org.junit.Assert.fail(Assert.java:88)
> 	at org.junit.Assert.failNotNull(Assert.java:664)
> 	at org.junit.Assert.assertNull(Assert.java:646)
> 	at org.junit.Assert.assertNull(Assert.java:656)
> 	at org.apache.hadoop.hdfs.TestMaintenanceState.testWithNNAndDNRestart(TestMaintenanceState.java:731)
> {code}
> The failure seems due to pending block has not been replicated. We can bump the retry
times since sometimes the cluster would be busy. Also we can use {{GenericTestUtils#waitFor}}
to simplified the current compared logic.



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