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https://issues.apache.org/jira/browse/HBASE-7871?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13612855#comment-13612855
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Ted Yu commented on HBASE-7871:
-------------------------------
If I read
https://builds.apache.org/job/PreCommit-HBASE-Build/4992/artifact/trunk/hbase-server/target/surefire-reports/org.apache.hadoop.hbase.util.TestMergeTable-output.txt
correctly, the test failure was related to this issue:
{code}
2013-03-25 04:46:08,389 FATAL
[RS_CLOSE_REGION-asf002.sp2.ygridcore.net,34472,1364186761997-2]
regionserver.HRegionServer(1607): ABORTING region server
asf002.sp2.ygridcore.net,34472,1364186761997: Unrecoverable exception while
closing region test,row_80001,1364186755279.c9304bb72db64492117f5008cc3901e4.,
still finishing close
java.lang.NullPointerException
at java.util.TreeMap.rotateLeft(TreeMap.java:2038)
at java.util.TreeMap.fixAfterDeletion(TreeMap.java:2211)
at java.util.TreeMap.deleteEntry(TreeMap.java:2151)
at java.util.TreeMap.remove(TreeMap.java:585)
at java.util.TreeSet.remove(TreeSet.java:259)
at
org.apache.hadoop.hbase.regionserver.MetricsRegionAggregateSourceImpl.deregister(MetricsRegionAggregateSourceImpl.java:55)
at
org.apache.hadoop.hbase.regionserver.MetricsRegionSourceImpl.close(MetricsRegionSourceImpl.java:86)
at
org.apache.hadoop.hbase.regionserver.MetricsRegion.close(MetricsRegion.java:40)
at
org.apache.hadoop.hbase.regionserver.HRegion.doClose(HRegion.java:962)
at org.apache.hadoop.hbase.regionserver.HRegion.close(HRegion.java:863)
at
org.apache.hadoop.hbase.regionserver.handler.CloseRegionHandler.process(CloseRegionHandler.java:147)
at
org.apache.hadoop.hbase.executor.EventHandler.run(EventHandler.java:130)
at
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)
{code}
> HBase can be stuck in the shutdown
> ----------------------------------
>
> Key: HBASE-7871
> URL: https://issues.apache.org/jira/browse/HBASE-7871
> Project: HBase
> Issue Type: Bug
> Components: master
> Affects Versions: 0.96.0
> Reporter: Nicolas Liochon
> Assignee: Ted Yu
> Priority: Critical
> Attachments: 7871.patch, 7871-v2.patch, 7871-v2.patch, s1.txt,
> TestStartStop.java
>
>
> The attached test fails ~1% of the the time on 0.96. It seems it does not
> fail on 0.94.5. It's simple: a table creation and some puts.
> I attach the stack. Logs says nothing it seems.
> The suspicious part is:
> {noformat}
> "RS_CLOSE_REGION-localhost,57575,1361197489166-2" prio=10
> tid=0x00007fb0c8775800 nid=0x61ac runnable [0x00007fb09f272000]
> java.lang.Thread.State: RUNNABLE
> at java.util.TreeMap.fixAfterDeletion(TreeMap.java:2193)
> at java.util.TreeMap.deleteEntry(TreeMap.java:2151)
> at java.util.TreeMap.remove(TreeMap.java:585)
> at java.util.TreeSet.remove(TreeSet.java:259)
> at
> org.apache.hadoop.hbase.regionserver.MetricsRegionAggregateSourceImpl.deregister(MetricsRegionAggregateSourceImpl.java:55)
> at
> org.apache.hadoop.hbase.regionserver.MetricsRegionSourceImpl.close(MetricsRegionSourceImpl.java:86)
> at
> org.apache.hadoop.hbase.regionserver.MetricsRegion.close(MetricsRegion.java:40)
> at
> org.apache.hadoop.hbase.regionserver.HRegion.doClose(HRegion.java:1063)
> at
> org.apache.hadoop.hbase.regionserver.HRegion.close(HRegion.java:969)
> - locked <0x00000006944e2558> (a java.lang.Object)
> at
> org.apache.hadoop.hbase.regionserver.handler.CloseRegionHandler.process(CloseRegionHandler.java:146)
> at
> org.apache.hadoop.hbase.executor.EventHandler.run(EventHandler.java:203)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
> at java.lang.Thread.run(Thread.java:662)
> {noformat}
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