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Posted to issues@hbase.apache.org by "Enis Soztutar (JIRA)" <ji...@apache.org> on 2017/02/13 19:25:42 UTC
[jira] [Reopened] (HBASE-13942) HBase client stalls during region
split when client threads > hbase.hconnection.threads.max
[ https://issues.apache.org/jira/browse/HBASE-13942?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Enis Soztutar reopened HBASE-13942:
-----------------------------------
> HBase client stalls during region split when client threads > hbase.hconnection.threads.max
> -------------------------------------------------------------------------------------------
>
> Key: HBASE-13942
> URL: https://issues.apache.org/jira/browse/HBASE-13942
> Project: HBase
> Issue Type: Bug
> Components: Client, regionserver
> Affects Versions: 1.0.0
> Reporter: Mukund Murrali
>
> Performing any operataion using a single hconnection with client threads > hbase.hconnection.threads.max causing the client to stall indefinetly during first region split. All the hconnection threads in client side are waiting with the following stack.
> hconnection-0x648a83fd-shared--pool1-t8" daemon prio=10 tid=0x00007f447c003800 nid=0x62ff waiting on condition [0x00007f44c72f0000]
> java.lang.Thread.State: WAITING (parking)
> at sun.misc.Unsafe.park(Native Method)
> - parking to wait for <0x00000007d768bdf0> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
> at java.util.concurrent.locks.LockSupport.park(LockSupport.java:186)
> at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2043)
> at java.util.concurrent.ArrayBlockingQueue.take(ArrayBlockingQueue.java:374)
> at org.apache.hadoop.hbase.util.BoundedCompletionService.take(BoundedCompletionService.java:74)
> at org.apache.hadoop.hbase.client.ScannerCallableWithReplicas.call(ScannerCallableWithReplicas.java:174)
> at org.apache.hadoop.hbase.client.ScannerCallableWithReplicas.call(ScannerCallableWithReplicas.java:56)
> at org.apache.hadoop.hbase.client.RpcRetryingCaller.callWithoutRetries(RpcRetryingCaller.java:200)
> at org.apache.hadoop.hbase.client.ClientSmallReversedScanner.next(ClientSmallReversedScanner.java:145)
> at org.apache.hadoop.hbase.client.ConnectionManager$HConnectionImplementation.locateRegionInMeta(ConnectionManager.java:1200)
> at org.apache.hadoop.hbase.client.ConnectionManager$HConnectionImplementation.locateRegion(ConnectionManager.java:1109)
> at org.apache.hadoop.hbase.client.AsyncProcess$AsyncRequestFutureImpl.findAllLocationsOrFail(AsyncProcess.java:916)
> at org.apache.hadoop.hbase.client.AsyncProcess$AsyncRequestFutureImpl.groupAndSendMultiAction(AsyncProcess.java:833)
> at org.apache.hadoop.hbase.client.AsyncProcess$AsyncRequestFutureImpl.resubmit(AsyncProcess.java:1156)
> at org.apache.hadoop.hbase.client.AsyncProcess$AsyncRequestFutureImpl.receiveMultiAction(AsyncProcess.java:1296)
> at org.apache.hadoop.hbase.client.AsyncProcess$AsyncRequestFutureImpl.access$1200(AsyncProcess.java:574)
> at org.apache.hadoop.hbase.client.AsyncProcess$AsyncRequestFutureImpl$SingleServerRequestRunnable.run(AsyncProcess.java:716)
> at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
> at java.util.concurrent.FutureTask.run(FutureTask.java:262)
> 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)
>
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