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From "Duo Zhang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-15326) NPE in TestHRegion.testBatchPut_whileNoRowLocksHeld
Date Thu, 25 Feb 2016 08:58:18 GMT

    [ https://issues.apache.org/jira/browse/HBASE-15326?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15166950#comment-15166950
] 

Duo Zhang commented on HBASE-15326:
-----------------------------------

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]



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