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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:<0> but was:<-3>"
> 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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