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  1. Hadoop HDFS
  2. HDFS-8548

Minicluster throws NPE on shutdown

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Details

    • Bug
    • Status: Resolved
    • Major
    • Resolution: Fixed
    • 2.6.0
    • 2.8.0, 3.0.0-alpha1
    • None

    Description

      FtAfter running Solr tests, when we attempt to shut down the mini cluster that we use for our unit tests, we get an NPE in the clean up thread. The test still completes normally, but this generates a lot of extra noise.

         [junit4]   2> java.lang.reflect.InvocationTargetException
         [junit4]   2> 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
         [junit4]   2> 	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
         [junit4]   2> 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
         [junit4]   2> 	at java.lang.reflect.Method.invoke(Method.java:497)
         [junit4]   2> 	at org.apache.hadoop.metrics2.lib.MethodMetric$2.snapshot(MethodMetric.java:111)
         [junit4]   2> 	at org.apache.hadoop.metrics2.lib.MethodMetric.snapshot(MethodMetric.java:144)
         [junit4]   2> 	at org.apache.hadoop.metrics2.lib.MetricsRegistry.snapshot(MetricsRegistry.java:387)
         [junit4]   2> 	at org.apache.hadoop.metrics2.lib.MetricsSourceBuilder$1.getMetrics(MetricsSourceBuilder.java:79)
         [junit4]   2> 	at org.apache.hadoop.metrics2.impl.MetricsSourceAdapter.getMetrics(MetricsSourceAdapter.java:195)
         [junit4]   2> 	at org.apache.hadoop.metrics2.impl.MetricsSourceAdapter.updateJmxCache(MetricsSourceAdapter.java:172)
         [junit4]   2> 	at org.apache.hadoop.metrics2.impl.MetricsSourceAdapter.getMBeanInfo(MetricsSourceAdapter.java:151)
         [junit4]   2> 	at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getClassName(DefaultMBeanServerInterceptor.java:1804)
         [junit4]   2> 	at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.safeGetClassName(DefaultMBeanServerInterceptor.java:1595)
         [junit4]   2> 	at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.checkMBeanPermission(DefaultMBeanServerInterceptor.java:1813)
         [junit4]   2> 	at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.exclusiveUnregisterMBean(DefaultMBeanServerInterceptor.java:430)
         [junit4]   2> 	at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.unregisterMBean(DefaultMBeanServerInterceptor.java:415)
         [junit4]   2> 	at com.sun.jmx.mbeanserver.JmxMBeanServer.unregisterMBean(JmxMBeanServer.java:546)
         [junit4]   2> 	at org.apache.hadoop.metrics2.util.MBeans.unregister(MBeans.java:81)
         [junit4]   2> 	at org.apache.hadoop.metrics2.impl.MetricsSourceAdapter.stopMBeans(MetricsSourceAdapter.java:227)
         [junit4]   2> 	at org.apache.hadoop.metrics2.impl.MetricsSourceAdapter.stop(MetricsSourceAdapter.java:212)
         [junit4]   2> 	at org.apache.hadoop.metrics2.impl.MetricsSystemImpl.stopSources(MetricsSystemImpl.java:461)
         [junit4]   2> 	at org.apache.hadoop.metrics2.impl.MetricsSystemImpl.stop(MetricsSystemImpl.java:212)
         [junit4]   2> 	at org.apache.hadoop.metrics2.impl.MetricsSystemImpl.shutdown(MetricsSystemImpl.java:592)
         [junit4]   2> 	at org.apache.hadoop.metrics2.lib.DefaultMetricsSystem.shutdownInstance(DefaultMetricsSystem.java:72)
         [junit4]   2> 	at org.apache.hadoop.metrics2.lib.DefaultMetricsSystem.shutdown(DefaultMetricsSystem.java:68)
         [junit4]   2> 	at org.apache.hadoop.hdfs.server.namenode.metrics.NameNodeMetrics.shutdown(NameNodeMetrics.java:145)
         [junit4]   2> 	at org.apache.hadoop.hdfs.server.namenode.NameNode.stop(NameNode.java:822)
         [junit4]   2> 	at org.apache.hadoop.hdfs.MiniDFSCluster.shutdown(MiniDFSCluster.java:1720)
         [junit4]   2> 	at org.apache.hadoop.hdfs.MiniDFSCluster.shutdown(MiniDFSCluster.java:1699)
         [junit4]   2> 	at org.apache.solr.cloud.hdfs.HdfsTestUtil.teardownClass(HdfsTestUtil.java:197)
         [junit4]   2> 	at org.apache.solr.core.HdfsDirectoryFactoryTest.teardownClass(HdfsDirectoryFactoryTest.java:67)
         [junit4]   2> 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
         [junit4]   2> 	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
         [junit4]   2> 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
         [junit4]   2> 	at java.lang.reflect.Method.invoke(Method.java:497)
         [junit4]   2> 	at com.carrotsearch.randomizedtesting.RandomizedRunner.invoke(RandomizedRunner.java:1627)
         [junit4]   2> 	at com.carrotsearch.randomizedtesting.RandomizedRunner$5.evaluate(RandomizedRunner.java:799)
         [junit4]   2> 	at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
         [junit4]   2> 	at com.carrotsearch.randomizedtesting.rules.SystemPropertiesRestoreRule$1.evaluate(SystemPropertiesRestoreRule.java:57)
         [junit4]   2> 	at org.apache.lucene.util.AbstractBeforeAfterRule$1.evaluate(AbstractBeforeAfterRule.java:46)
         [junit4]   2> 	at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
         [junit4]   2> 	at org.apache.lucene.util.TestRuleStoreClassName$1.evaluate(TestRuleStoreClassName.java:42)
         [junit4]   2> 	at com.carrotsearch.randomizedtesting.rules.NoShadowingOrOverridesOnMethodsRule$1.evaluate(NoShadowingOrOverridesOnMethodsRule.java:39)
         [junit4]   2> 	at com.carrotsearch.randomizedtesting.rules.NoShadowingOrOverridesOnMethodsRule$1.evaluate(NoShadowingOrOverridesOnMethodsRule.java:39)
         [junit4]   2> 	at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
         [junit4]   2> 	at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
         [junit4]   2> 	at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
         [junit4]   2> 	at org.apache.lucene.util.TestRuleAssertionsRequired$1.evaluate(TestRuleAssertionsRequired.java:54)
         [junit4]   2> 	at org.apache.lucene.util.TestRuleMarkFailure$1.evaluate(TestRuleMarkFailure.java:48)
         [junit4]   2> 	at org.apache.lucene.util.TestRuleIgnoreAfterMaxFailures$1.evaluate(TestRuleIgnoreAfterMaxFailures.java:65)
         [junit4]   2> 	at org.apache.lucene.util.TestRuleIgnoreTestSuites$1.evaluate(TestRuleIgnoreTestSuites.java:55)
         [junit4]   2> 	at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
         [junit4]   2> 	at com.carrotsearch.randomizedtesting.ThreadLeakControl$StatementRunner.run(ThreadLeakControl.java:365)
         [junit4]   2> 	at java.lang.Thread.run(Thread.java:745)
         [junit4]   2> Caused by: java.lang.NullPointerException
         [junit4]   2> 	at org.apache.hadoop.hdfs.server.blockmanagement.BlocksMap.size(BlocksMap.java:198)
         [junit4]   2> 	at org.apache.hadoop.hdfs.server.blockmanagement.BlockManager.getTotalBlocks(BlockManager.java:3291)
         [junit4]   2> 	at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getBlocksTotal(FSNamesystem.java:6223)
         [junit4]   2> 	... 54 more
      

      Attachments

        1. HDFS-8548.patch
          0.9 kB
          Surendra Singh Lilhore

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            surendralilhore Surendra Singh Lilhore
            mdrob Mike Drob
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              Created:
              Updated:
              Resolved:

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