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From "Han Xiao (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HADOOP-8790) testTrashEmptier() fails when run TestHDFSTrash
Date Wed, 12 Sep 2012 09:25:07 GMT
Han Xiao created HADOOP-8790:
--------------------------------

             Summary: testTrashEmptier() fails when run TestHDFSTrash
                 Key: HADOOP-8790
                 URL: https://issues.apache.org/jira/browse/HADOOP-8790
             Project: Hadoop Common
          Issue Type: Bug
          Components: test
    Affects Versions: 2.0.1-alpha
            Reporter: Han Xiao


In our test environment, TestHDFSTrash.testTrashEmptier fails occasionally:

Standout is:
2012-09-12 01:09:23,732 WARN  conf.Configuration (Configuration.java:warnOnceIfDeprecated(737))
- fs.default.name is deprecated. Instead, use fs.defaultFS
Moved: 'file:/home/hadoop/jenkins/jenkins_home/jobs/hadoop-hdfs-test/workspace/hadoop-hdfs/target/test/data/testTrash/test/mkdirs/myFile0'
to trash at: file:/home/hadoop/.Trash/Current

Stacktrace is:
junit.framework.AssertionFailedError: null
	at junit.framework.Assert.fail(Assert.java:47)
	at junit.framework.Assert.assertTrue(Assert.java:20)
	at junit.framework.Assert.assertTrue(Assert.java:27)
	at org.apache.hadoop.fs.TestTrash.testTrashEmptier(TestTrash.java:533)
	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:168)
	at junit.framework.TestCase.runBare(TestCase.java:134)
	at junit.framework.TestResult$1.protect(TestResult.java:110)
	at junit.framework.TestResult.runProtected(TestResult.java:128)
	at junit.framework.TestResult.run(TestResult.java:113)
	at junit.framework.TestCase.run(TestCase.java:124)
	at junit.framework.TestSuite.runTest(TestSuite.java:243)
	at junit.framework.TestSuite.run(TestSuite.java:238)
	at junit.extensions.TestDecorator.basicRun(TestDecorator.java:24)
	at junit.extensions.TestSetup$1.protect(TestSetup.java:23)
	at junit.framework.TestResult.runProtected(TestResult.java:128)
	at junit.extensions.TestSetup.run(TestSetup.java:27)
	at org.junit.internal.runners.JUnit38ClassRunner.run(JUnit38ClassRunner.java:83)
	at org.apache.maven.surefire.junit4.JUnit4Provider.execute(JUnit4Provider.java:236)
	at org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:134)
	at org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:113)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at org.apache.maven.surefire.util.ReflectionUtils.invokeMethodWithArray(ReflectionUtils.java:189)
	at org.apache.maven.surefire.booter.ProviderFactory$ProviderProxy.invoke(ProviderFactory.java:165)
	at org.apache.maven.surefire.booter.ProviderFactory.invokeProvider(ProviderFactory.java:85)
	at org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:103)
	at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:74)
	
So it seems that at the beginning, the condition that 'checkpoints.size() == 4' is true. Then
the testcase fails right away.
If the Trash directory likes bellow, the testcase fails everytime.

hadoop@HADOOP-CI-AGENT-A:~/.Trash> l
total 24
drwxr-xr-x  6 hadoop users 4096 Sep 12 17:26 ./
drwx------ 21 hadoop users 4096 Sep 12 17:25 ../
drwxr-xr-x  3 hadoop users 4096 Sep 12 17:26 120912170042/
drwxr-xr-x  3 hadoop users 4096 Sep 12 17:00 120912170048/
drwxr-xr-x  3 hadoop users 4096 Sep 12 17:00 120912170054/
drwxr-xr-x  3 hadoop users 4096 Sep 12 17:00 Current/

So the testcase must be modified to avoid the failing in such a precondition.

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