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
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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