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https://issues.apache.org/jira/browse/PHOENIX-1303?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14152883#comment-14152883
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ramkrishna.s.vasudevan commented on PHOENIX-1303:
-------------------------------------------------
We are trying to do some refactoring of the new CP into
UngroupedAggregateRegionObserver as part of Phoenix-1263. If that is done may
be this will get solved.
> Possible NPE in StatisticCollector#stop
> ---------------------------------------
>
> Key: PHOENIX-1303
> URL: https://issues.apache.org/jira/browse/PHOENIX-1303
> Project: Phoenix
> Issue Type: Bug
> Reporter: rajeshbabu
> Assignee: ramkrishna.s.vasudevan
>
> Getting NPE sometimes with SkipScanAfterManualSplitIT test case.
> {code}
> java.lang.RuntimeException: java.lang.NullPointerException
> at
> org.apache.hadoop.hbase.regionserver.handler.CloseRegionHandler.process(CloseRegionHandler.java:133)
> at
> org.apache.hadoop.hbase.executor.EventHandler.run(EventHandler.java:175)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
> at java.lang.Thread.run(Thread.java:724)
> Caused by: java.lang.NullPointerException
> at
> org.apache.phoenix.schema.stat.StatisticsCollector.stop(StatisticsCollector.java:220)
> at
> org.apache.hadoop.hbase.coprocessor.CoprocessorHost$Environment.shutdown(CoprocessorHost.java:624)
> at
> org.apache.hadoop.hbase.regionserver.RegionCoprocessorHost$RegionEnvironment.shutdown(RegionCoprocessorHost.java:119)
> at
> org.apache.hadoop.hbase.coprocessor.CoprocessorHost.shutdown(CoprocessorHost.java:263)
> at
> org.apache.hadoop.hbase.regionserver.RegionCoprocessorHost.postClose(RegionCoprocessorHost.java:344)
> at
> org.apache.hadoop.hbase.regionserver.HRegion.doClose(HRegion.java:1144)
> at org.apache.hadoop.hbase.regionserver.HRegion.close(HRegion.java:1024)
> at
> org.apache.hadoop.hbase.regionserver.handler.CloseRegionHandler.process(CloseRegionHandler.java:119)
> {code}
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