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https://issues.apache.org/jira/browse/PHOENIX-6871?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Aman Poonia reassigned PHOENIX-6871:
------------------------------------

    Assignee: Aman Poonia

> Write threads blocked with deadlock
> -----------------------------------
>
>                 Key: PHOENIX-6871
>                 URL: https://issues.apache.org/jira/browse/PHOENIX-6871
>             Project: Phoenix
>          Issue Type: Bug
>    Affects Versions: 4.16.0, 5.2.0, 5.1.3
>            Reporter: Aman Poonia
>            Assignee: Aman Poonia
>            Priority: Major
>
> Found one Java-level deadlock: ============================= 
> "RpcServer.default.FPBQ.Fifo.handler=202,queue=20,port=61020": waiting for 
> ownable synchronizer 0x00007f93d40944f0, (a 
> java.util.concurrent.locks.ReentrantLock$FairSync), which is held by 
> "RpcServer.default.FPBQ.Fifo.handler=38,queue=12,port=61020" 
> "RpcServer.default.FPBQ.Fifo.handler=38,queue=12,port=61020": waiting for 
> ownable synchronizer 0x00007f93d40cd570, (a 
> java.util.concurrent.locks.ReentrantLock$FairSync), which is held by 
> "RpcServer.default.FPBQ.Fifo.handler=202,queue=20,port=61020" Java stack 
> information for the threads listed above: 
> =================================================== 
> "RpcServer.default.FPBQ.Fifo.handler=202,queue=20,port=61020": at 
> sun.misc.Unsafe.park(Native Method) - parking to wait for 
> <0x00007f93d40944f0> (a java.util.concurrent.locks.ReentrantLock$FairSync) at 
> java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215) at 
> java.util.concurrent.locks.AbstractQueuedSynchronizer.doAcquireNanos(AbstractQueuedSynchronizer.java:936)
>  at 
> java.util.concurrent.locks.AbstractQueuedSynchronizer.tryAcquireNanos(AbstractQueuedSynchronizer.java:1250)
>  at java.util.concurrent.locks.ReentrantLock.tryLock(ReentrantLock.java:447) 
> at org.apache.phoenix.hbase.index.LockManager.lockRow(LockManager.java:89) at 
> org.apache.phoenix.hbase.index.IndexRegionObserver.lockRows(IndexRegionObserver.java:557)
>  at 
> org.apache.phoenix.hbase.index.IndexRegionObserver.preBatchMutateWithExceptions(IndexRegionObserver.java:1167)
>  at 
> org.apache.phoenix.hbase.index.IndexRegionObserver.preBatchMutate(IndexRegionObserver.java:460)
>  at 
> org.apache.hadoop.hbase.regionserver.RegionCoprocessorHost$35.call(RegionCoprocessorHost.java:1024)
>  at 
> org.apache.hadoop.hbase.regionserver.RegionCoprocessorHost$RegionOperation.call(RegionCoprocessorHost.java:1742)
>  at 
> org.apache.hadoop.hbase.regionserver.RegionCoprocessorHost.execOperation(RegionCoprocessorHost.java:1827)
>  at 
> org.apache.hadoop.hbase.regionserver.RegionCoprocessorHost.execOperation(RegionCoprocessorHost.java:1783)
>  at 
> org.apache.hadoop.hbase.regionserver.RegionCoprocessorHost.preBatchMutate(RegionCoprocessorHost.java:1020)
>  at 
> org.apache.hadoop.hbase.regionserver.HRegion.doMiniBatchMutation(HRegion.java:3543)
>  at 
> org.apache.hadoop.hbase.regionserver.HRegion.batchMutate(HRegion.java:3273) 
> at 
> org.apache.hadoop.hbase.regionserver.HRegion.batchMutate(HRegion.java:3215) 
> at 
> org.apache.hadoop.hbase.regionserver.RSRpcServices.doBatchOp(RSRpcServices.java:967)
>  at 
> org.apache.hadoop.hbase.regionserver.RSRpcServices.doNonAtomicRegionMutation(RSRpcServices.java:895)
>  at 
> org.apache.hadoop.hbase.regionserver.RSRpcServices.multi(RSRpcServices.java:2524)
>  at 
> org.apache.hadoop.hbase.protobuf.generated.ClientProtos$ClientService$2.callBlockingMethod(ClientProtos.java:36812)
>  at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:2432) at 
> org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:124) at 
> org.apache.hadoop.hbase.ipc.RpcExecutor$Handler.run(RpcExecutor.java:311) at 
> org.apache.hadoop.hbase.ipc.RpcExecutor$Handler.run(RpcExecutor.java:291) 
> "RpcServer.default.FPBQ.Fifo.handler=38,queue=12,port=61020": at 
> sun.misc.Unsafe.park(Native Method) - parking to wait for 
> <0x00007f93d40cd570> (a java.util.concurrent.locks.ReentrantLock$FairSync) at 
> java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215) at 
> java.util.concurrent.locks.AbstractQueuedSynchronizer.doAcquireNanos(AbstractQueuedSynchronizer.java:936)
>  at 
> java.util.concurrent.locks.AbstractQueuedSynchronizer.tryAcquireNanos(AbstractQueuedSynchronizer.java:1250)
>  at java.util.concurrent.locks.ReentrantLock.tryLock(ReentrantLock.java:447) 
> at org.apache.phoenix.hbase.index.LockManager.lockRow(LockManager.java:89) at 
> org.apache.phoenix.hbase.index.IndexRegionObserver.lockRows(IndexRegionObserver.java:557)
>  at 
> org.apache.phoenix.hbase.index.IndexRegionObserver.preBatchMutateWithExceptions(IndexRegionObserver.java:1167)
>  at 
> org.apache.phoenix.hbase.index.IndexRegionObserver.preBatchMutate(IndexRegionObserver.java:460)
>  at 
> org.apache.hadoop.hbase.regionserver.RegionCoprocessorHost$35.call(RegionCoprocessorHost.java:1024)
>  at 
> org.apache.hadoop.hbase.regionserver.RegionCoprocessorHost$RegionOperation.call(RegionCoprocessorHost.java:1742)
>  at 
> org.apache.hadoop.hbase.regionserver.RegionCoprocessorHost.execOperation(RegionCoprocessorHost.java:1827)
>  at 
> org.apache.hadoop.hbase.regionserver.RegionCoprocessorHost.execOperation(RegionCoprocessorHost.java:1783)
>  at 
> org.apache.hadoop.hbase.regionserver.RegionCoprocessorHost.preBatchMutate(RegionCoprocessorHost.java:1020)
>  at 
> org.apache.hadoop.hbase.regionserver.HRegion.doMiniBatchMutation(HRegion.java:3543)
>  at 
> org.apache.hadoop.hbase.regionserver.HRegion.batchMutate(HRegion.java:3273) 
> at 
> org.apache.hadoop.hbase.regionserver.HRegion.batchMutate(HRegion.java:3215) 
> at 
> org.apache.phoenix.coprocessor.UngroupedAggregateRegionObserver.commitBatch(UngroupedAggregateRegionObserver.java:265)
>  at 
> org.apache.phoenix.coprocessor.UngroupedAggregateRegionObserver.commitBatchWithRetries(UngroupedAggregateRegionObserver.java:230)
>  at 
> org.apache.phoenix.coprocessor.UngroupedAggregateRegionObserver.commit(UngroupedAggregateRegionObserver.java:489)
>  at 
> org.apache.phoenix.coprocessor.UngroupedAggregateRegionScanner.annotateAndCommit(UngroupedAggregateRegionScanner.java:649)
>  at 
> org.apache.phoenix.coprocessor.UngroupedAggregateRegionScanner.next(UngroupedAggregateRegionScanner.java:610)
>  - locked <0x00007f93d5596e50> (a 
> org.apache.phoenix.iterate.RegionScannerFactory$1) at 
> org.apache.phoenix.coprocessor.BaseRegionScanner.nextRaw(BaseRegionScanner.java:56)
>  at 
> org.apache.phoenix.coprocessor.DelegateRegionScanner.nextRaw(DelegateRegionScanner.java:82)
>  at 
> org.apache.phoenix.coprocessor.DelegateRegionScanner.nextRaw(DelegateRegionScanner.java:82)
>  at 
> org.apache.phoenix.coprocessor.BaseScannerRegionObserver$RegionScannerHolder.nextRaw(BaseScannerRegionObserver.java:340)
>  at 
> org.apache.hadoop.hbase.regionserver.RSRpcServices.scan(RSRpcServices.java:2963)
>  - locked <0x00007f93d5596790> (a 
> org.apache.phoenix.coprocessor.BaseScannerRegionObserver$RegionScannerHolder) 
> at 
> org.apache.hadoop.hbase.regionserver.RSRpcServices.scan(RSRpcServices.java:3212)
>  at 
> org.apache.hadoop.hbase.protobuf.generated.ClientProtos$ClientService$2.callBlockingMethod(ClientProtos.java:36804)
>  at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:2432) at 
> org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:124) at 
> org.apache.hadoop.hbase.ipc.RpcExecutor$Handler.run(RpcExecutor.java:311) at 
> org.apache.hadoop.hbase.ipc.RpcExecutor$Handler.run(RpcExecutor.java:291) 
> Found 1 deadlock.



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