[HBASE-8392] TestMetricMBeanBase#testGetAttribute is flakey under hadoop2 profile

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.98.0, 0.95.0
• Fix Version/s: 0.98.0, 0.95.1
• Component/s: hadoop2, metrics, test
• Hadoop Flags: Reviewed
• Assignee: Elliott Neil Clark
• Reporter: Jonathan Hsieh
• Created: 23/Apr/13 01:45
• Updated: 23/Sep/13 19:08
• Resolved: 25/Apr/13 22:51

Description

This specific small unit tests flakes out occasionally and blocks the medium and large tests from running.

Here's an error trace:

Error Message

expected:<2.0> but was:<0.125>
Stacktrace

junit.framework.AssertionFailedError: expected:<2.0> but was:<0.125>
	at junit.framework.Assert.fail(Assert.java:57)
	at junit.framework.Assert.failNotEquals(Assert.java:329)
	at junit.framework.Assert.assertEquals(Assert.java:120)
	at junit.framework.Assert.assertEquals(Assert.java:129)
	at junit.framework.TestCase.assertEquals(TestCase.java:288)
	at org.apache.hadoop.hbase.metrics.TestMetricsMBeanBase.testGetAttribute(TestMetricsMBeanBase.java:93)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at junit.framework.TestCase.runTest(TestCase.java:176)
	at junit.framework.TestCase.runBare(TestCase.java:141)
	at junit.framework.TestResult$1.protect(TestResult.java:122)
	at junit.framework.TestResult.runProtected(TestResult.java:142)
	at junit.framework.TestResult.run(TestResult.java:125)
	at junit.framework.TestCase.run(TestCase.java:129)
	at junit.framework.TestSuite.runTest(TestSuite.java:255)
	at junit.framework.TestSuite.run(TestSuite.java:250)
	at org.junit.internal.runners.JUnit38ClassRunner.run(JUnit38ClassRunner.java:84)
	at org.junit.runners.Suite.runChild(Suite.java:127)
	at org.junit.runners.Suite.runChild(Suite.java:26)
	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
	at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
	at java.util.concurrent.FutureTask.run(FutureTask.java:138)
	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
	at java.lang.Thread.run(Thread.java:662)

eclark took a quick look and will chime in on this.