tomscut created HDFS-16552:
------------------------------
Summary: Fix NPE for BlockManager
Key: HDFS-16552
URL: https://issues.apache.org/jira/browse/HDFS-16552
Project: Hadoop HDFS
Issue Type: Bug
Reporter: tomscut
Assignee: tomscut
There is a NPE in BlockManager when run
TestBlockManager#testSkipReconstructionWithManyBusyNodes2. Because
NameNodeMetrics is not initialized in this unit test.
Related ci link, see
[this|https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-4209/1/artifact/out/patch-unit-hadoop-hdfs-project_hadoop-hdfs.txt].
{code:java}
[ERROR] Tests run: 34, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 30.088
s <<< FAILURE! - in
org.apache.hadoop.hdfs.server.blockmanagement.TestBlockManager
[ERROR]
testSkipReconstructionWithManyBusyNodes2(org.apache.hadoop.hdfs.server.blockmanagement.TestBlockManager)
Time elapsed: 2.783 s <<< ERROR!
java.lang.NullPointerException
at
org.apache.hadoop.hdfs.server.blockmanagement.BlockManager.scheduleReconstruction(BlockManager.java:2171)
at
org.apache.hadoop.hdfs.server.blockmanagement.TestBlockManager.testSkipReconstructionWithManyBusyNodes2(TestBlockManager.java:947)
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:59)
at
org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at
org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:56)
at
org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
at
org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
at org.junit.runners.ParentRunner$3.evaluate(ParentRunner.java:306)
at
org.junit.runners.BlockJUnit4ClassRunner$1.evaluate(BlockJUnit4ClassRunner.java:100)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:366)
at
org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:103)
at
org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:63)
at org.junit.runners.ParentRunner$4.run(ParentRunner.java:331)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:79)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:329)
at org.junit.runners.ParentRunner.access$100(ParentRunner.java:66)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:293)
at org.junit.runners.ParentRunner$3.evaluate(ParentRunner.java:306)
at org.junit.runners.ParentRunner.run(ParentRunner.java:413)
at
org.apache.maven.surefire.junit4.JUnit4Provider.execute(JUnit4Provider.java:365)
at
org.apache.maven.surefire.junit4.JUnit4Provider.executeWithRerun(JUnit4Provider.java:273)
at
org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:238)
at
org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:159)
at
org.apache.maven.surefire.booter.ForkedBooter.invokeProviderInSameClassLoader(ForkedBooter.java:384)
at
org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:345)
at
org.apache.maven.surefire.booter.ForkedBooter.execute(ForkedBooter.java:126)
at
org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:418) {code}
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