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From "Xiao Chen (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-12347) TestBalancerRPCDelay#testBalancerRPCDelay fails consistently
Date Fri, 17 Nov 2017 23:56:00 GMT

    [ https://issues.apache.org/jira/browse/HDFS-12347?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16257776#comment-16257776
] 

Xiao Chen commented on HDFS-12347:
----------------------------------

Fails on branch-2.7 too, with {{mvn clean test -Dtest=TestBalancerRPCDelay}}.

Hi [~shv],
Could you take a look?
{noformat}
Running org.apache.hadoop.hdfs.server.balancer.TestBalancerRPCDelay
Tests run: 1, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 11.6 sec <<< FAILURE!
- in org.apache.hadoop.hdfs.server.balancer.TestBalancerRPCDelay
testBalancerRPCDelay(org.apache.hadoop.hdfs.server.balancer.TestBalancerRPCDelay)  Time elapsed:
11.532 sec  <<< ERROR!
java.lang.IllegalStateException: failed to create a child event loop
	at sun.nio.ch.KQueueArrayWrapper.init(Native Method)
	at sun.nio.ch.KQueueArrayWrapper.<init>(KQueueArrayWrapper.java:100)
	at sun.nio.ch.KQueueSelectorImpl.<init>(KQueueSelectorImpl.java:87)
	at sun.nio.ch.KQueueSelectorProvider.openSelector(KQueueSelectorProvider.java:42)
	at io.netty.channel.nio.NioEventLoop.openSelector(NioEventLoop.java:126)
	at io.netty.channel.nio.NioEventLoop.<init>(NioEventLoop.java:120)
	at io.netty.channel.nio.NioEventLoopGroup.newChild(NioEventLoopGroup.java:87)
	at io.netty.util.concurrent.MultithreadEventExecutorGroup.<init>(MultithreadEventExecutorGroup.java:64)
	at io.netty.channel.MultithreadEventLoopGroup.<init>(MultithreadEventLoopGroup.java:49)
	at io.netty.channel.nio.NioEventLoopGroup.<init>(NioEventLoopGroup.java:61)
	at io.netty.channel.nio.NioEventLoopGroup.<init>(NioEventLoopGroup.java:52)
	at io.netty.channel.nio.NioEventLoopGroup.<init>(NioEventLoopGroup.java:44)
	at io.netty.channel.nio.NioEventLoopGroup.<init>(NioEventLoopGroup.java:36)
	at org.apache.hadoop.hdfs.server.datanode.web.DatanodeHttpServer.<init>(DatanodeHttpServer.java:111)
	at org.apache.hadoop.hdfs.server.datanode.DataNode.startInfoServer(DataNode.java:760)
	at org.apache.hadoop.hdfs.server.datanode.DataNode.startDataNode(DataNode.java:1143)
	at org.apache.hadoop.hdfs.server.datanode.DataNode.<init>(DataNode.java:429)
	at org.apache.hadoop.hdfs.server.datanode.DataNode.makeInstance(DataNode.java:2413)
	at org.apache.hadoop.hdfs.server.datanode.DataNode.instantiateDataNode(DataNode.java:2300)
	at org.apache.hadoop.hdfs.MiniDFSCluster.startDataNodes(MiniDFSCluster.java:1457)
	at org.apache.hadoop.hdfs.MiniDFSCluster.startDataNodes(MiniDFSCluster.java:1295)
	at org.apache.hadoop.hdfs.server.balancer.TestBalancer.doTest(TestBalancer.java:678)
	at org.apache.hadoop.hdfs.server.balancer.TestBalancer.testBalancerRPCDelay(TestBalancer.java:1689)
	at org.apache.hadoop.hdfs.server.balancer.TestBalancerRPCDelay.testBalancerRPCDelay(TestBalancerRPCDelay.java:30)


Results :

Tests in error: 
  TestBalancerRPCDelay.testBalancerRPCDelay:30 ยป IllegalState failed to create a...

Tests run: 1, Failures: 0, Errors: 1, Skipped: 0
{noformat}

Also attached a trunk failure.

> TestBalancerRPCDelay#testBalancerRPCDelay fails consistently
> ------------------------------------------------------------
>
>                 Key: HDFS-12347
>                 URL: https://issues.apache.org/jira/browse/HDFS-12347
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: test
>    Affects Versions: 3.0.0-beta1, 2.7.5
>            Reporter: Xiao Chen
>            Assignee: Bharat Viswanadham
>         Attachments: trunk.failed.xml
>
>
> Seems to be failing consistently on trunk from yesterday-ish.
> A sample failure is https://builds.apache.org/job/PreCommit-HDFS-Build/20824/testReport/org.apache.hadoop.hdfs.server.balancer/TestBalancerRPCDelay/testBalancerRPCDelay/
> Running locally failed with:
> {noformat}
> <failure message="expected:&lt;0&gt; but was:&lt;-3&gt;" type="java.lang.AssertionError"><![CDATA[java.lang.AssertionError:
expected:<0> but was:<-3>
>         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.balancer.TestBalancer.runBalancer(TestBalancer.java:953)
>         at org.apache.hadoop.hdfs.server.balancer.TestBalancer.doTest(TestBalancer.java:921)
>         at org.apache.hadoop.hdfs.server.balancer.TestBalancer.testBalancerRPCDelay(TestBalancer.java:2094)
>         at org.apache.hadoop.hdfs.server.balancer.TestBalancerRPCDelay.testBalancerRPCDelay(TestBalancerRPCDelay.java:30)
> ]]></failure>
> {noformat}



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