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Date: Mon, 11 Sep 2017 18:20:07 +0000 (UTC)
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Subject: [jira] [Commented] (TEPHRA-239) Null pointer exception in
 TransactionStateCache
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archived-at: Mon, 11 Sep 2017 18:20:13 -0000


    [ https://issues.apache.org/jira/browse/TEPHRA-239?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16161716#comment-16161716 ] 

ASF GitHub Bot commented on TEPHRA-239:
---------------------------------------

Github user asfgit closed the pull request at:

    https://github.com/apache/incubator-tephra/pull/46


> Null pointer exception in TransactionStateCache
> -----------------------------------------------
>
>                 Key: TEPHRA-239
>                 URL: https://issues.apache.org/jira/browse/TEPHRA-239
>             Project: Tephra
>          Issue Type: Bug
>            Reporter: Samarth Jain
>            Assignee: Gokul Gunasekaran
>             Fix For: 0.13.0-incubating
>
>
> In our Phoenix test runs we have seen the following NPE in TransactionStateCache. 
> {code}
> 2017-07-19 18:57:56,136 INFO  [tx-state-refresh] org.apache.tephra.coprocessor.TransactionStateCache$1(144): Exiting thread tx-state-refresh
> 2017-07-19 18:57:56,138 ERROR [TransactionStateCache STOPPING] org.apache.zookeeper.server.NIOServerCnxnFactory$1(44): Thread Thread[TransactionStateCache STOPPING,5,main] died
> java.lang.NullPointerException
> 	at org.apache.tephra.coprocessor.TransactionStateCache.shutDown(TransactionStateCache.java:85)
> 	at com.google.common.util.concurrent.AbstractIdleService$1$2.run(AbstractIdleService.java:57)
> 	at java.lang.Thread.run(Thread.java:745)
> 2017-07-19 18:57:56,138 WARN  [RS_CLOSE_REGION-pietas:52618-2] org.apache.tephra.coprocessor.ReferenceCountedSupplier(89): Exception while trying to stop Service TransactionStateCache.
> com.google.common.util.concurrent.UncheckedExecutionException: java.lang.NullPointerException
> 	at com.google.common.util.concurrent.Futures.wrapAndThrowUnchecked(Futures.java:1015)
> 	at com.google.common.util.concurrent.Futures.getUnchecked(Futures.java:1001)
> 	at com.google.common.util.concurrent.AbstractService.stopAndWait(AbstractService.java:225)
> 	at com.google.common.util.concurrent.AbstractIdleService.stopAndWait(AbstractIdleService.java:122)
> 	at org.apache.tephra.coprocessor.ReferenceCountedSupplier.release(ReferenceCountedSupplier.java:86)
> 	at org.apache.tephra.coprocessor.TransactionStateCacheSupplier.release(TransactionStateCacheSupplier.java:61)
> 	at org.apache.tephra.hbase.coprocessor.TransactionProcessor.stop(TransactionProcessor.java:182)
> 	at org.apache.phoenix.coprocessor.DelegateRegionObserver.stop(DelegateRegionObserver.java:82)
> 	at org.apache.hadoop.hbase.coprocessor.CoprocessorHost$Environment.shutdown(CoprocessorHost.java:433)
> 	at org.apache.hadoop.hbase.regionserver.RegionCoprocessorHost$RegionEnvironment.shutdown(RegionCoprocessorHost.java:152)
> 	at org.apache.hadoop.hbase.coprocessor.CoprocessorHost.shutdown(CoprocessorHost.java:274)
> 	at org.apache.hadoop.hbase.regionserver.RegionCoprocessorHost$5.postEnvCall(RegionCoprocessorHost.java:512)
> 	at org.apache.hadoop.hbase.regionserver.RegionCoprocessorHost.execOperation(RegionCoprocessorHost.java:1761)
> 	at org.apache.hadoop.hbase.regionserver.RegionCoprocessorHost.postClose(RegionCoprocessorHost.java:505)
> 	at org.apache.hadoop.hbase.regionserver.HRegion.doClose(HRegion.java:1542)
> 	at org.apache.hadoop.hbase.regionserver.HRegion.close(HRegion.java:1381)
> 	at org.apache.hadoop.hbase.regionserver.handler.CloseRegionHandler.process(CloseRegionHandler.java:138)
> 	at org.apache.hadoop.hbase.executor.EventHandler.run(EventHandler.java:129)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.NullPointerException
> 	at org.apache.tephra.coprocessor.TransactionStateCache.shutDown(TransactionStateCache.java:85)
> 	at com.google.common.util.concurrent.AbstractIdleService$1$2.run(AbstractIdleService.java:57)
> 	... 1 more
> 2017-07-19 18:57:56,139 DEBUG [RS_CLOSE_REGION-pietas:52618-2] org.apache.hadoop.hbase.coprocessor.CoprocessorHost(272): Stop coprocessor org.apache.phoenix.coprocessor.ServerCachingEndpointImpl
> 2017-07-19 18:57:56,139 DEBUG [RS_CLOSE_REGION-pietas:52618-2] org.apache.hadoop.hbase.coprocessor.CoprocessorHost(272): Stop coprocessor org.apache.phoenix.coprocessor.GroupedAggregateRegionObserver
> 2017-07-19 18:
> {code}
> Test run: https://builds.apache.org/job/Phoenix-master/1699/testReport/junit/org.apache.phoenix.end2end/ViewIT/testNonSaltedUpdatableViewWithIndex_transactional___false_/


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