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From "Ahmed Hussein (Jira)" <j...@apache.org>
Subject [jira] [Created] (HDFS-15146) TestBalancerRPCDelay.testBalancerRPCDelay fails intermittently
Date Mon, 27 Jan 2020 18:52:00 GMT
Ahmed Hussein created HDFS-15146:
------------------------------------

             Summary: TestBalancerRPCDelay.testBalancerRPCDelay fails intermittently
                 Key: HDFS-15146
                 URL: https://issues.apache.org/jira/browse/HDFS-15146
             Project: Hadoop HDFS
          Issue Type: Bug
            Reporter: Ahmed Hussein
            Assignee: Ahmed Hussein


TestBalancerRPCDelay.testBalancerRPCDelay fails intermittently when the number of blocks does
not match the expected. In {{testBalancerRPCDelay}}, it seems like some datanodes will not
be up by the time we fetch the block locations.

I see the following stack trace:

{code:bash}
[ERROR] Tests run: 2, Failures: 1, Errors: 0, Skipped: 0, Time elapsed: 39.969 s <<<
FAILURE! - in org.apache.hadoop.hdfs.server.balancer.TestBalancerRPCDelay
[ERROR] testBalancerRPCDelayQpsDefault(org.apache.hadoop.hdfs.server.balancer.TestBalancerRPCDelay)
 Time elapsed: 12.035 s  <<< FAILURE!
java.lang.AssertionError: Number of getBlocks should be not less than 20
	at org.junit.Assert.fail(Assert.java:88)
	at org.junit.Assert.assertTrue(Assert.java:41)
	at org.apache.hadoop.hdfs.server.balancer.TestBalancer.testBalancerRPCDelay(TestBalancer.java:2197)
	at org.apache.hadoop.hdfs.server.balancer.TestBalancerRPCDelay.testBalancerRPCDelayQpsDefault(TestBalancerRPCDelay.java:53)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
	at org.junit.internal.runners.statements.FailOnTimeout$CallableStatement.call(FailOnTimeout.java:298)
	at org.junit.internal.runners.statements.FailOnTimeout$CallableStatement.call(FailOnTimeout.java:292)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.lang.Thread.run(Thread.java:748)
{code}





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