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Duo Zhang edited comment on HBASE-15326 at 2/25/16 8:57 AM: ------------------------------------------------------------ Yes I have posted on that page. https://issues.apache.org/jira/browse/HBASE-15222?focusedCommentId=15166829&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-15166829 It is easy to fix the NPE but there are other problems... was (Author: apache9): Yes I have posted on that page. https://issues.apache.org/jira/browse/HBASE-15222?focusedCommentId=15166829&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-15166829 It is easy to fix the NPE but there are problems... > NPE in TestHRegion.testBatchPut_whileNoRowLocksHeld > --------------------------------------------------- > > Key: HBASE-15326 > URL: https://issues.apache.org/jira/browse/HBASE-15326 > Project: HBase > Issue Type: Bug > Reporter: Heng Chen > > {code} > java.lang.NullPointerException > at > org.apache.hadoop.metrics2.lib.MutableHistogram.updateSnapshotMetrics(MutableHistogram.java:72) > at > org.apache.hadoop.metrics2.lib.MutableRangeHistogram.snapshot(MutableRangeHistogram.java:59) > at > org.apache.hadoop.metrics2.lib.DynamicMetricsRegistry.snapshot(DynamicMetricsRegistry.java:391) > at > org.apache.hadoop.hbase.metrics.BaseSourceImpl.getMetrics(BaseSourceImpl.java:146) > at > org.apache.hadoop.hbase.test.MetricsAssertHelperImpl.getMetrics(MetricsAssertHelperImpl.java:243) > at > org.apache.hadoop.hbase.test.MetricsAssertHelperImpl.getCounter(MetricsAssertHelperImpl.java:201) > at > org.apache.hadoop.hbase.regionserver.TestHRegion.testBatchPut_whileNoRowLocksHeld(TestHRegion.java:1498) > 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:497) > at > org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50) > at > org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12) > at > org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47) > 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.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27) > at org.junit.rules.TestWatcher$1.evaluate(TestWatcher.java:55) > at org.junit.rules.RunRules.evaluate(RunRules.java:20) > at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325) > at > org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78) > at > org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57) > at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290) > at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71) > at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288) > at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58) > at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268) > at org.junit.runners.ParentRunner.run(ParentRunner.java:363) > at org.junit.runner.JUnitCore.run(JUnitCore.java:137) > at > com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:117) > at > com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:234) > at > com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:74) > 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:497) > at com.intellij.rt.execution.application.AppMain.main(AppMain.java:144) > {code} > It seems to be introduced after HBASE-15222, [~eclark] -- This message was sent by Atlassian JIRA (v6.3.4#6332)