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From "Hudson (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-2414) TestDFSRollback fails intermittently
Date Sun, 09 Oct 2011 13:20:29 GMT

    [ https://issues.apache.org/jira/browse/HDFS-2414?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13123683#comment-13123683
] 

Hudson commented on HDFS-2414:
------------------------------

Integrated in Hadoop-Mapreduce-trunk #855 (See [https://builds.apache.org/job/Hadoop-Mapreduce-trunk/855/])
    HDFS-2414. Fix TestDFSRollback to avoid spurious failures. Contributed by Todd Lipcon.

todd : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1180541
Files : 
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestDFSRollback.java
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestDFSUpgrade.java
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/UpgradeUtilities.java
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/FSImageTestUtil.java

                
> TestDFSRollback fails intermittently
> ------------------------------------
>
>                 Key: HDFS-2414
>                 URL: https://issues.apache.org/jira/browse/HDFS-2414
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: name-node, test
>    Affects Versions: 0.23.0
>            Reporter: Robert Joseph Evans
>            Assignee: Todd Lipcon
>            Priority: Critical
>             Fix For: 0.23.0
>
>         Attachments: hdfs-2414.txt, hdfs-2414.txt, hdfs-2414.txt, run-106-failed.tgz,
run-158-failed.tgz
>
>
> When running TestDFSRollback repeatedly in a loop I observed a failure rate of about
3%.  Two separate stack traces are in the output and it appears to have something to do with
not writing out a complete snapshot of the data for rollback.
> {noformat}
> -------------------------------------------------------------------------------
> Test set: org.apache.hadoop.hdfs.TestDFSRollback
> -------------------------------------------------------------------------------
> Tests run: 1, Failures: 1, Errors: 0, Skipped: 0, Time elapsed: 8.514 sec <<<
FAILURE!
> testRollback(org.apache.hadoop.hdfs.TestDFSRollback)  Time elapsed: 8.34 sec  <<<
FAILURE!
> java.lang.AssertionError: File contents differed:
>   /home/evans/src/hadoop-git/hadoop-hdfs-project/hadoop-hdfs/target/test/data/dfs/data2/current/VERSION=5b19197114fad0a254e3f318b7f14aec
>   /home/evans/src/hadoop-git/hadoop-hdfs-project/hadoop-hdfs/target/test/data/dfs/data1/current/VERSION=ea7b000a6a1711169fc7a836b240a991
>         at org.junit.Assert.fail(Assert.java:91)
>         at org.apache.hadoop.hdfs.server.namenode.FSImageTestUtil.assertFileContentsSame(FSImageTestUtil.java:250)
>         at org.apache.hadoop.hdfs.server.namenode.FSImageTestUtil.assertParallelFilesAreIdentical(FSImageTestUtil.java:236)
>         at org.apache.hadoop.hdfs.TestDFSRollback.checkResult(TestDFSRollback.java:86)
>         at org.apache.hadoop.hdfs.TestDFSRollback.testRollback(TestDFSRollback.java:171)
>         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:232)
>         at junit.framework.TestSuite.run(TestSuite.java:227)
>         at org.junit.internal.runners.JUnit38ClassRunner.run(JUnit38ClassRunner.java:83)
>         at org.apache.maven.surefire.junit4.JUnit4TestSet.execute(JUnit4TestSet.java:59)
>         at org.apache.maven.surefire.suite.AbstractDirectoryTestSuite.executeTestSet(AbstractDirectoryTestSuite.java:120)
>         at org.apache.maven.surefire.suite.AbstractDirectoryTestSuite.execute(AbstractDirectoryTestSuite.java:145)
>         at org.apache.maven.surefire.Surefire.run(Surefire.java:104)
>         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.booter.SurefireBooter.runSuitesInProcess(SurefireBooter.java:290)
>         at org.apache.maven.surefire.booter.SurefireBooter.main(SurefireBooter.java:1017)
> {noformat}
> is the more common one, but I also saw
> {noformat}
> -------------------------------------------------------------------------------
> Test set: org.apache.hadoop.hdfs.TestDFSRollback
> -------------------------------------------------------------------------------
> Tests run: 1, Failures: 1, Errors: 0, Skipped: 0, Time elapsed: 7.471 sec <<<
FAILURE!
> testRollback(org.apache.hadoop.hdfs.TestDFSRollback)  Time elapsed: 7.304 sec  <<<
FAILURE!
> junit.framework.AssertionFailedError: Expected substring 'file VERSION has layoutVersion
missing' in exception but got: java.lang.IllegalArgumentException: Malformed \uxxxx encoding.
>         at java.util.Properties.loadConvert(Properties.java:552)
>         at java.util.Properties.load0(Properties.java:374)
>         at java.util.Properties.load(Properties.java:325)
>         at org.apache.hadoop.hdfs.server.common.Storage.readPropertiesFile(Storage.java:837)
>         at org.apache.hadoop.hdfs.server.common.Storage.readPreviousVersionProperties(Storage.java:789)
>         at org.apache.hadoop.hdfs.server.namenode.FSImage.doRollback(FSImage.java:439)
>         at org.apache.hadoop.hdfs.server.namenode.FSImage.recoverTransitionRead(FSImage.java:270)
>         at org.apache.hadoop.hdfs.server.namenode.FSDirectory.loadFSImage(FSDirectory.java:174)
>         at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.initialize(FSNamesystem.java:294)
>         at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.<init>(FSNamesystem.java:266)
>         at org.apache.hadoop.hdfs.server.namenode.NameNode.loadNamesystem(NameNode.java:292)
>         at org.apache.hadoop.hdfs.server.namenode.NameNode.initialize(NameNode.java:326)
>         at org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:452)
>         at org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:444)
>         at org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:742)
>         at org.apache.hadoop.hdfs.MiniDFSCluster.createNameNode(MiniDFSCluster.java:637)
>         at org.apache.hadoop.hdfs.MiniDFSCluster.initMiniDFSCluster(MiniDFSCluster.java:541)
>         at org.apache.hadoop.hdfs.MiniDFSCluster.<init>(MiniDFSCluster.java:257)
>         at org.apache.hadoop.hdfs.MiniDFSCluster.<init>(MiniDFSCluster.java:85)
>         at org.apache.hadoop.hdfs.MiniDFSCluster$Builder.build(MiniDFSCluster.java:243)
>         at org.apache.hadoop.hdfs.TestDFSRollback.startNameNodeShouldFail(TestDFSRollback.java:100)
>         at org.apache.hadoop.hdfs.TestDFSRollback.testRollback(TestDFSRollback.java:268)
>         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:232)
>         at junit.framework.TestSuite.run(TestSuite.java:227)
>         at org.junit.internal.runners.JUnit38ClassRunner.run(JUnit38ClassRunner.java:83)
>         at org.apache.maven.surefire.junit4.JUnit4TestSet.execute(JUnit4TestSet.java:59)
>         at org.apache.maven.surefire.suite.AbstractDirectoryTestSuite.executeTestSet(AbstractDirectoryTestSuite.java:120)
>         at org.apache.maven.surefire.suite.AbstractDirectoryTestSuite.execute(AbstractDirectoryTestSuite.java:145)
>         at org.apache.maven.surefire.Surefire.run(Surefire.java:104)
>         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.booter.SurefireBooter.runSuitesInProcess(SurefireBooter.java:290)
>         at org.apache.maven.surefire.booter.SurefireBooter.main(SurefireBooter.java:1017)
>         at junit.framework.Assert.fail(Assert.java:47)
>         at org.apache.hadoop.hdfs.TestDFSRollback.startNameNodeShouldFail(TestDFSRollback.java:109)
>         at org.apache.hadoop.hdfs.TestDFSRollback.testRollback(TestDFSRollback.java:268)
>         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:232)
>         at junit.framework.TestSuite.run(TestSuite.java:227)
>         at org.junit.internal.runners.JUnit38ClassRunner.run(JUnit38ClassRunner.java:83)
>         at org.apache.maven.surefire.junit4.JUnit4TestSet.execute(JUnit4TestSet.java:59)
>         at org.apache.maven.surefire.suite.AbstractDirectoryTestSuite.executeTestSet(AbstractDirectoryTestSuite.java:120)
>         at org.apache.maven.surefire.suite.AbstractDirectoryTestSuite.execute(AbstractDirectoryTestSuite.java:145)
>         at org.apache.maven.surefire.Surefire.run(Surefire.java:104)
>         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.booter.SurefireBooter.runSuitesInProcess(SurefireBooter.java:290)
>         at org.apache.maven.surefire.booter.SurefireBooter.main(SurefireBooter.java:1017)
> {noformat}

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