[HDFS-15671] TestBalancerRPCDelay#testBalancerRPCDelayQpsDefault fails on Trunk

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.4.0
• Fix Version/s: 3.4.0
• Component/s: balancer, test
• Labels: pull-request-available
• Target Version/s: 3.4.0
• Hadoop Flags: Reviewed
• Assignee: Ahmed Hussein
• Reporter: Ahmed Hussein
• Created: 07/Nov/20 01:15
• Updated: 12/Feb/24 06:06
• Resolved: 09/Jul/21 20:15

Description

qbt report shows failures on TestBalancer

org.apache.hadoop.hdfs.server.balancer.TestBalancerRPCDelay.testBalancerRPCDelayQpsDefault

Failing for the past 1 build (Since Failed#317 )
Took 45 sec.
Error Message
Timed out waiting for /tmp.txt to reach 20 replicas
Stacktrace
java.util.concurrent.TimeoutException: Timed out waiting for /tmp.txt to reach 20 replicas
	at org.apache.hadoop.hdfs.DFSTestUtil.waitReplication(DFSTestUtil.java:829)
	at org.apache.hadoop.hdfs.server.balancer.TestBalancer.createFile(TestBalancer.java:319)
	at org.apache.hadoop.hdfs.server.balancer.TestBalancer.doTest(TestBalancer.java:865)
	at org.apache.hadoop.hdfs.server.balancer.TestBalancer.testBalancerRPCDelay(TestBalancer.java:2193)
	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)

Issue Links

• Testing discovered: HDFS-16061 DFTestUtil.waitReplication can produce false positives
• links to: GitHub Pull Request #3097