Chun Chang created DRILL-4298:
---------------------------------

             Summary: SYSTEM ERROR: ChannelClosedException
                 Key: DRILL-4298
                 URL: https://issues.apache.org/jira/browse/DRILL-4298
             Project: Apache Drill
          Issue Type: Bug
          Components: Execution - RPC
    Affects Versions: 1.5.0
            Reporter: Chun Chang


1.5.0-SNAPSHOT  2f0e3f27e630d5ac15cdaef808564e01708c3c55

Running functional regression, hit this error, seems random and not associated 
with any particular query.

>From client side:

{noformat}
1/5          create table `existing_partition_pruning/lineitempart` partition 
by (dir0) as select * from 
dfs.`/drill/testdata/partition_pruning/dfs/lineitempart`;
Error: SYSTEM ERROR: ChannelClosedException: Channel closed 
/10.10.100.171:31010 <--> /10.10.100.171:33713.

Fragment 0:0

[Error Id: 772d90b8-c5e6-4ecc-8776-68ccc6b57d49 on drillats1.qa.lab:31010] 
(state=,code=0)
java.sql.SQLException: SYSTEM ERROR: ChannelClosedException: Channel closed 
/10.10.100.171:31010 <--> /10.10.100.171:33713.

Fragment 0:0

[Error Id: 772d90b8-c5e6-4ecc-8776-68ccc6b57d49 on drillats1.qa.lab:31010]
        at 
org.apache.drill.jdbc.impl.DrillCursor.nextRowInternally(DrillCursor.java:247)
        at org.apache.drill.jdbc.impl.DrillCursor.next(DrillCursor.java:321)
        at 
net.hydromatic.avatica.AvaticaResultSet.next(AvaticaResultSet.java:187)
        at 
org.apache.drill.jdbc.impl.DrillResultSetImpl.next(DrillResultSetImpl.java:172)
        at sqlline.IncrementalRows.hasNext(IncrementalRows.java:62)
        at 
sqlline.TableOutputFormat$ResizingRowsProvider.next(TableOutputFormat.java:87)
        at sqlline.TableOutputFormat.print(TableOutputFormat.java:118)
        at sqlline.SqlLine.print(SqlLine.java:1593)
        at sqlline.Commands.execute(Commands.java:852)
        at sqlline.Commands.sql(Commands.java:751)
        at sqlline.SqlLine.dispatch(SqlLine.java:746)
        at sqlline.SqlLine.runCommands(SqlLine.java:1651)
        at sqlline.Commands.run(Commands.java:1304)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
        at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:606)
        at 
sqlline.ReflectiveCommandHandler.execute(ReflectiveCommandHandler.java:36)
        at sqlline.SqlLine.dispatch(SqlLine.java:742)
        at sqlline.SqlLine.initArgs(SqlLine.java:553)
        at sqlline.SqlLine.begin(SqlLine.java:596)
        at sqlline.SqlLine.start(SqlLine.java:375)
        at sqlline.SqlLine.main(SqlLine.java:268)
Caused by: org.apache.drill.common.exceptions.UserRemoteException: SYSTEM 
ERROR: ChannelClosedException: Channel closed /10.10.100.171:31010 <--> 
/10.10.100.171:33713.

Fragment 0:0

[Error Id: 772d90b8-c5e6-4ecc-8776-68ccc6b57d49 on drillats1.qa.lab:31010]
        at 
org.apache.drill.exec.rpc.user.QueryResultHandler.resultArrived(QueryResultHandler.java:119)
        at 
org.apache.drill.exec.rpc.user.UserClient.handleReponse(UserClient.java:113)
        at 
org.apache.drill.exec.rpc.BasicClientWithConnection.handle(BasicClientWithConnection.java:46)
        at 
org.apache.drill.exec.rpc.BasicClientWithConnection.handle(BasicClientWithConnection.java:31)
        at org.apache.drill.exec.rpc.RpcBus.handle(RpcBus.java:67)
        at org.apache.drill.exec.rpc.RpcBus$RequestEvent.run(RpcBus.java:374)
        at 
org.apache.drill.common.SerializedExecutor$RunnableProcessor.run(SerializedExecutor.java:89)
        at 
org.apache.drill.exec.rpc.RpcBus$SameExecutor.execute(RpcBus.java:252)
        at 
org.apache.drill.common.SerializedExecutor.execute(SerializedExecutor.java:123)
        at 
org.apache.drill.exec.rpc.RpcBus$InboundHandler.decode(RpcBus.java:285)
        at 
org.apache.drill.exec.rpc.RpcBus$InboundHandler.decode(RpcBus.java:257)
        at 
io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:89)
        at 
io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:339)
        at 
io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:324)
        at 
io.netty.handler.timeout.IdleStateHandler.channelRead(IdleStateHandler.java:254)
        at 
io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:339)
        at 
io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:324)
        at 
io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:103)
        at 
io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:339)
        at 
io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:324)
        at 
io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:242)
        at 
io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:339)
        at 
io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:324)
        at 
io.netty.channel.ChannelInboundHandlerAdapter.channelRead(ChannelInboundHandlerAdapter.java:86)
        at 
io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:339)
        at 
io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:324)
        at 
io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:847)
        at 
io.netty.channel.epoll.AbstractEpollStreamChannel$EpollStreamUnsafe.epollInReady(AbstractEpollStreamChannel.java:618)
        at 
io.netty.channel.epoll.EpollEventLoop.processReady(EpollEventLoop.java:329)
        at io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:250)
        at 
io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:111)
        at java.lang.Thread.run(Thread.java:744)
Aborting command set because "force" is false and command failed: 
"create table `existing_partition_pruning/lineitempart` partition by (dir0) as 
select * from dfs.`/drill/testdata/partition_pruning/dfs/lineitempart`;"
Closing: org.apache.drill.jdbc.impl.DrillConnectionImpl

Running command 
/root/drillAutomation/framework-master/framework/resources/Datasources/hive_storage/execHive.sh
 resources/Datasources/hive_storage/windows_functions.ddl
Exiting due to uncaught exception
java.util.concurrent.ExecutionException: java.lang.RuntimeException: 
java.util.concurrent.ExecutionException: java.lang.RuntimeException: Error 
executing the command 
/root/drillAutomation/framework-master/framework/resources/Datasources/ctas_auto_partition/ctas_existing_partition_pruning.sh
 has return code 1
        at java.util.concurrent.FutureTask.report(FutureTask.java:122)
        at java.util.concurrent.FutureTask.get(FutureTask.java:188)
        at 
org.apache.drill.test.framework.CancelingExecutor$1.run(CancelingExecutor.java:81)
        at 
java.util.concurrent.Executors$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:744)
Caused by: java.lang.RuntimeException: java.util.concurrent.ExecutionException: 
java.lang.RuntimeException: Error executing the command 
/root/drillAutomation/framework-master/framework/resources/Datasources/ctas_auto_partition/ctas_existing_partition_pruning.sh
 has return code 1
        at 
org.apache.drill.test.framework.CancelingExecutor$1$1.run(CancelingExecutor.java:76)
        ... 5 more
Caused by: java.util.concurrent.ExecutionException: java.lang.RuntimeException: 
Error executing the command 
/root/drillAutomation/framework-master/framework/resources/Datasources/ctas_auto_partition/ctas_existing_partition_pruning.sh
 has return code 1
        at java.util.concurrent.FutureTask.report(FutureTask.java:122)
        at java.util.concurrent.FutureTask.get(FutureTask.java:202)
        at 
org.apache.drill.test.framework.CancelingExecutor$1$1.run(CancelingExecutor.java:72)
        ... 5 more
Caused by: java.lang.RuntimeException: Error executing the command 
/root/drillAutomation/framework-master/framework/resources/Datasources/ctas_auto_partition/ctas_existing_partition_pruning.sh
 has return code 1
        at 
org.apache.drill.test.framework.TestDriver.runGenerateScript(TestDriver.java:471)
        at 
org.apache.drill.test.framework.TestDriver.access$400(TestDriver.java:46)
        at org.apache.drill.test.framework.TestDriver$2.run(TestDriver.java:411)
        ... 5 more
{noformat}

drillbit.log

{noformat}
[root@drillats1 ~]# clush -a grep 295f7e89-0693-e2bb-7ab6-98d75e83e145 
/var/log/drill/drillbit.log
clush: 10.10.100.172: exited with exit code 1
clush: 10.10.100.173: exited with exit code 1
10.10.100.171: 2016-01-20 22:57:58,930 
[295f7e89-0693-e2bb-7ab6-98d75e83e145:foreman] INFO  
o.a.drill.exec.work.foreman.Foreman - Query text for query id 
295f7e89-0693-e2bb-7ab6-98d75e83e145: create table 
`existing_partition_pruning/lineitempart` partition by (dir0) as select * from 
dfs.`/drill/testdata/partition_pruning/dfs/lineitempart`
10.10.100.171: 2016-01-20 22:57:59,153 
[295f7e89-0693-e2bb-7ab6-98d75e83e145:foreman] INFO  
o.a.d.e.s.schedule.BlockMapBuilder - Get block maps: Executed 7 out of 7 using 
7 threads. Time: 4ms total, 1.736564ms avg, 2ms max.
10.10.100.171: 2016-01-20 22:57:59,154 
[295f7e89-0693-e2bb-7ab6-98d75e83e145:foreman] INFO  
o.a.d.e.s.schedule.BlockMapBuilder - Get block maps: Executed 7 out of 7 using 
7 threads. Earliest start: 1007.185000 μs, Latest start: 2613.030000 μs, 
Average start: 1986.881857 μs .
10.10.100.171: 2016-01-20 22:57:59,456 
[295f7e89-0693-e2bb-7ab6-98d75e83e145:frag:0:0] INFO  
o.a.d.e.w.fragment.FragmentExecutor - 295f7e89-0693-e2bb-7ab6-98d75e83e145:0:0: 
State change requested AWAITING_ALLOCATION --> RUNNING
10.10.100.171: 2016-01-20 22:57:59,457 
[295f7e89-0693-e2bb-7ab6-98d75e83e145:frag:0:0] INFO  
o.a.d.e.w.f.FragmentStatusReporter - 295f7e89-0693-e2bb-7ab6-98d75e83e145:0:0: 
State to report: RUNNING
10.10.100.171: 2016-01-20 22:58:03,939 [UserServer-1] INFO  
o.a.d.e.w.fragment.FragmentExecutor - 295f7e89-0693-e2bb-7ab6-98d75e83e145:0:0: 
State change requested RUNNING --> FAILED
10.10.100.171: 2016-01-20 22:58:03,941 
[295f7e89-0693-e2bb-7ab6-98d75e83e145:frag:0:0] INFO  
o.a.d.e.w.fragment.FragmentExecutor - 295f7e89-0693-e2bb-7ab6-98d75e83e145:0:0: 
State change requested FAILED --> FINISHED
10.10.100.171: 2016-01-20 22:58:03,951 
[295f7e89-0693-e2bb-7ab6-98d75e83e145:frag:0:0] ERROR 
o.a.d.e.w.fragment.FragmentExecutor - SYSTEM ERROR: ChannelClosedException: 
Channel closed /10.10.100.171:31010 <--> /10.10.100.171:33713.
10.10.100.171: 2016-01-20 22:58:03,985 [CONTROL-rpc-event-queue] WARN  
o.a.d.e.w.b.ControlMessageHandler - Dropping request to cancel fragment. 
295f7e89-0693-e2bb-7ab6-98d75e83e145:0:0 does not exist.
clush: 10.10.100.174: exited with exit code 1
{noformat}

{noformat}
2016-01-20 22:58:03,939 [UserServer-1] INFO  
o.a.d.e.w.fragment.FragmentExecutor - 295f7e89-0693-e2bb-7ab6-98d75e83e145:0:0: 
State change requested RUNNING --> FAILED
2016-01-20 22:58:03,941 [295f7e89-0693-e2bb-7ab6-98d75e83e145:frag:0:0] INFO  
o.a.d.e.w.fragment.FragmentExecutor - 295f7e89-0693-e2bb-7ab6-98d75e83e145:0:0: 
State change requested FAILED --> FINISHED
2016-01-20 22:58:03,951 [295f7e89-0693-e2bb-7ab6-98d75e83e145:frag:0:0] ERROR 
o.a.d.e.w.fragment.FragmentExecutor - SYSTEM ERROR: ChannelClosedException: 
Channel closed /10.10.100.171:31010 <--> /10.10.100.171:33713.

Fragment 0:0

[Error Id: 772d90b8-c5e6-4ecc-8776-68ccc6b57d49 on drillats1.qa.lab:31010]
org.apache.drill.common.exceptions.UserException: SYSTEM ERROR: 
ChannelClosedException: Channel closed /10.10.100.171:31010 <--> 
/10.10.100.171:33713.

Fragment 0:0

[Error Id: 772d90b8-c5e6-4ecc-8776-68ccc6b57d49 on drillats1.qa.lab:31010]
        at 
org.apache.drill.common.exceptions.UserException$Builder.build(UserException.java:543)
 ~[drill-common-1.5.0-SNAPSHOT.jar:1.5.0-SNAPSHOT]
        at 
org.apache.drill.exec.work.fragment.FragmentExecutor.sendFinalState(FragmentExecutor.java:321)
 [drill-java-exec-1.5.0-SNAPSHOT.jar:1.5.0-SNAPSHOT]
        at 
org.apache.drill.exec.work.fragment.FragmentExecutor.cleanup(FragmentExecutor.java:184)
 [drill-java-exec-1.5.0-SNAPSHOT.jar:1.5.0-SNAPSHOT]
        at 
org.apache.drill.exec.work.fragment.FragmentExecutor.run(FragmentExecutor.java:290)
 [drill-java-exec-1.5.0-SNAPSHOT.jar:1.5.0-SNAPSHOT]
        at 
org.apache.drill.common.SelfCleaningRunnable.run(SelfCleaningRunnable.java:38) 
[drill-common-1.5.0-SNAPSHOT.jar:1.5.0-SNAPSHOT]
        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) 
[na:1.7.0_45]
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) 
[na:1.7.0_45]
        at java.lang.Thread.run(Thread.java:744) [na:1.7.0_45]
Caused by: org.apache.drill.exec.rpc.ChannelClosedException: Channel closed 
/10.10.100.171:31010 <--> /10.10.100.171:33713.
        at 
org.apache.drill.exec.rpc.RpcBus$ChannelClosedHandler.operationComplete(RpcBus.java:173)
 ~[drill-rpc-1.5.0-SNAPSHOT.jar:1.5.0-SNAPSHOT]
        at 
org.apache.drill.exec.rpc.RpcBus$ChannelClosedHandler.operationComplete(RpcBus.java:149)
 ~[drill-rpc-1.5.0-SNAPSHOT.jar:1.5.0-SNAPSHOT]
        at 
io.netty.util.concurrent.DefaultPromise.notifyListener0(DefaultPromise.java:680)
 ~[netty-common-4.0.27.Final.jar:4.0.27.Final]
        at 
io.netty.util.concurrent.DefaultPromise.notifyListeners0(DefaultPromise.java:603)
 ~[netty-common-4.0.27.Final.jar:4.0.27.Final]
        at 
io.netty.util.concurrent.DefaultPromise.notifyListeners(DefaultPromise.java:563)
 ~[netty-common-4.0.27.Final.jar:4.0.27.Final]
        at 
io.netty.util.concurrent.DefaultPromise.trySuccess(DefaultPromise.java:406) 
~[netty-common-4.0.27.Final.jar:4.0.27.Final]
        at 
io.netty.channel.DefaultChannelPromise.trySuccess(DefaultChannelPromise.java:82)
 ~[netty-transport-4.0.27.Final.jar:4.0.27.Final]
        at 
io.netty.channel.AbstractChannel$CloseFuture.setClosed(AbstractChannel.java:943)
 ~[netty-transport-4.0.27.Final.jar:4.0.27.Final]
        at 
io.netty.channel.AbstractChannel$AbstractUnsafe.doClose0(AbstractChannel.java:592)
 ~[netty-transport-4.0.27.Final.jar:4.0.27.Final]
        at 
io.netty.channel.AbstractChannel$AbstractUnsafe.close(AbstractChannel.java:584) 
~[netty-transport-4.0.27.Final.jar:4.0.27.Final]
        at 
io.netty.channel.epoll.AbstractEpollStreamChannel$EpollStreamUnsafe.closeOnRead(AbstractEpollStreamChannel.java:409)
 ~[netty-transport-native-epoll-4.0.27.Final-linux-x86_64.jar:na]
        at 
io.netty.channel.epoll.AbstractEpollStreamChannel$EpollStreamUnsafe.epollInReady(AbstractEpollStreamChannel.java:647)
 ~[netty-transport-native-epoll-4.0.27.Final-linux-x86_64.jar:na]
        at 
io.netty.channel.epoll.AbstractEpollStreamChannel$EpollStreamUnsafe.epollRdHupReady(AbstractEpollStreamChannel.java:573)
 ~[netty-transport-native-epoll-4.0.27.Final-linux-x86_64.jar:na]
        at 
io.netty.channel.epoll.EpollEventLoop.processReady(EpollEventLoop.java:315) 
~[netty-transport-native-epoll-4.0.27.Final-linux-x86_64.jar:na]
        at io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:250) 
~[netty-transport-native-epoll-4.0.27.Final-linux-x86_64.jar:na]
        at 
io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:111)
 ~[netty-common-4.0.27.Final.jar:4.0.27.Final]
        ... 1 common frames omitted
2016-01-20 22:58:03,984 [CONTROL-rpc-event-queue] WARN  
o.a.drill.exec.work.foreman.Foreman - Dropping request to move to COMPLETED 
state as query is already at FAILED state (which is terminal).
2016-01-20 22:58:03,985 [CONTROL-rpc-event-queue] WARN  
o.a.d.e.w.b.ControlMessageHandler - Dropping request to cancel fragment. 
295f7e89-0693-e2bb-7ab6-98d75e83e145:0:0 does not exist.
2016-01-20 22:58:04,537 [295f7e85-eb64-6e07-a643-e40903e7b97e:frag:0:0] INFO  
o.a.d.e.p.i.xsort.ExternalSortBatch - Merging and spilling to 
/tmp/drill/spill/295f7e85-eb64-6e07-a643-e40903e7b97e/major_fragment_0/minor_fragment_0/operator_6/0
2016-01-20 22:58:04,715 [295f7e85-eb64-6e07-a643-e40903e7b97e:frag:0:0] INFO  
o.a.d.e.p.i.xsort.ExternalSortBatch - Completed spilling to 
/tmp/drill/spill/295f7e85-eb64-6e07-a643-e40903e7b97e/major_fragment_0/minor_fragment_0/operator_6/0
2016-01-20 22:58:04,769 [295f7e85-eb64-6e07-a643-e40903e7b97e:frag:0:0] INFO  
o.a.d.e.p.i.xsort.ExternalSortBatch - Merging and spilling to 
/tmp/drill/spill/295f7e85-eb64-6e07-a643-e40903e7b97e/major_fragment_0/minor_fragment_0/operator_6/1
2016-01-20 22:58:04,822 [CONTROL-rpc-event-queue] INFO  
o.a.d.e.w.fragment.FragmentExecutor - 295f7e8b-e1a0-3402-bfa4-d401b8758d0b:0:0: 
State change requested RUNNING --> CANCELLATION_REQUESTED
2016-01-20 22:58:04,823 [CONTROL-rpc-event-queue] INFO  
o.a.d.e.w.f.FragmentStatusReporter - 295f7e8b-e1a0-3402-bfa4-d401b8758d0b:0:0: 
State to report: CANCELLATION_REQUESTED
2016-01-20 22:58:04,875 [295f7e85-eb64-6e07-a643-e40903e7b97e:frag:0:0] INFO  
o.a.d.e.p.i.xsort.ExternalSortBatch - Completed spilling to 
/tmp/drill/spill/295f7e85-eb64-6e07-a643-e40903e7b97e/major_fragment_0/minor_fragment_0/operator_6/1
2016-01-20 22:58:04,901 [295f7e85-eb64-6e07-a643-e40903e7b97e:frag:0:0] INFO  
o.a.d.e.p.i.xsort.ExternalSortBatch - Merging and spilling to 
/tmp/drill/spill/295f7e85-eb64-6e07-a643-e40903e7b97e/major_fragment_0/minor_fragment_0/operator_6/2
2016-01-20 22:58:04,952 [295f7e85-eb64-6e07-a643-e40903e7b97e:frag:0:0] INFO  
o.a.d.e.p.i.xsort.ExternalSortBatch - Completed spilling to 
/tmp/drill/spill/295f7e85-eb64-6e07-a643-e40903e7b97e/major_fragment_0/minor_fragment_0/operator_6/2
2016-01-20 22:58:04,953 [295f7e85-eb64-6e07-a643-e40903e7b97e:frag:0:0] WARN  
o.a.d.e.p.i.xsort.ExternalSortBatch - Starting to merge. 6 batch groups. 
Current allocated memory: 53696128
2016-01-20 22:58:05,005 [CONTROL-rpc-event-queue] INFO  
o.a.d.e.w.fragment.FragmentExecutor - 295f7e85-eb64-6e07-a643-e40903e7b97e:0:0: 
State change requested RUNNING --> CANCELLATION_REQUESTED
2016-01-20 22:58:05,006 [CONTROL-rpc-event-queue] INFO  
o.a.d.e.w.f.FragmentStatusReporter - 295f7e85-eb64-6e07-a643-e40903e7b97e:0:0: 
State to report: CANCELLATION_REQUESTED
2016-01-20 22:58:05,043 [295f7e85-eb64-6e07-a643-e40903e7b97e:frag:0:0] INFO  
o.a.d.e.w.fragment.FragmentExecutor - 295f7e85-eb64-6e07-a643-e40903e7b97e:0:0: 
State change requested CANCELLATION_REQUESTED --> FINISHED
2016-01-20 22:58:05,043 [295f7e85-eb64-6e07-a643-e40903e7b97e:frag:0:0] INFO  
o.a.d.e.w.f.FragmentStatusReporter - 295f7e85-eb64-6e07-a643-e40903e7b97e:0:0: 
State to report: CANCELLED
2016-01-20 22:58:05,070 [UserServer-1] INFO  
o.a.drill.exec.work.foreman.Foreman - Failure while trying communicate query 
result to initiating client. This would happen if a client is disconnected 
before response notice can be sent.
org.apache.drill.exec.rpc.ChannelClosedException: null
        at 
org.apache.drill.exec.rpc.CoordinationQueue$RpcListener.operationComplete(CoordinationQueue.java:89)
 [drill-rpc-1.5.0-SNAPSHOT.jar:1.5.0-SNAPSHOT]
        at 
org.apache.drill.exec.rpc.CoordinationQueue$RpcListener.operationComplete(CoordinationQueue.java:67)
 [drill-rpc-1.5.0-SNAPSHOT.jar:1.5.0-SNAPSHOT]
        at 
io.netty.util.concurrent.DefaultPromise.notifyListener0(DefaultPromise.java:680)
 [netty-common-4.0.27.Final.jar:4.0.27.Final]
        at 
io.netty.util.concurrent.DefaultPromise.notifyListeners0(DefaultPromise.java:603)
 [netty-common-4.0.27.Final.jar:4.0.27.Final]
        at 
io.netty.util.concurrent.DefaultPromise.notifyListeners(DefaultPromise.java:563)
 [netty-common-4.0.27.Final.jar:4.0.27.Final]
        at 
io.netty.util.concurrent.DefaultPromise.tryFailure(DefaultPromise.java:424) 
[netty-common-4.0.27.Final.jar:4.0.27.Final]
        at 
io.netty.channel.AbstractChannel$AbstractUnsafe.safeSetFailure(AbstractChannel.java:788)
 [netty-transport-4.0.27.Final.jar:4.0.27.Final]
        at 
io.netty.channel.AbstractChannel$AbstractUnsafe.write(AbstractChannel.java:689) 
[netty-transport-4.0.27.Final.jar:4.0.27.Final]
        at 
io.netty.channel.DefaultChannelPipeline$HeadContext.write(DefaultChannelPipeline.java:1114)
 [netty-transport-4.0.27.Final.jar:4.0.27.Final]
        at 
io.netty.channel.AbstractChannelHandlerContext.invokeWrite(AbstractChannelHandlerContext.java:705)
 [netty-transport-4.0.27.Final.jar:4.0.27.Final]
        at 
io.netty.channel.AbstractChannelHandlerContext.access$1900(AbstractChannelHandlerContext.java:32)
 [netty-transport-4.0.27.Final.jar:4.0.27.Final]
        at 
io.netty.channel.AbstractChannelHandlerContext$AbstractWriteTask.write(AbstractChannelHandlerContext.java:980)
 [netty-transport-4.0.27.Final.jar:4.0.27.Final]
        at 
io.netty.channel.AbstractChannelHandlerContext$WriteAndFlushTask.write(AbstractChannelHandlerContext.java:1032)
 [netty-transport-4.0.27.Final.jar:4.0.27.Final]
        at 
io.netty.channel.AbstractChannelHandlerContext$AbstractWriteTask.run(AbstractChannelHandlerContext.java:965)
 [netty-transport-4.0.27.Final.jar:4.0.27.Final]
        at 
io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:357)
 [netty-common-4.0.27.Final.jar:4.0.27.Final]
        at io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:254) 
[netty-transport-native-epoll-4.0.27.Final-linux-x86_64.jar:na]
        at 
io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:111)
 [netty-common-4.0.27.Final.jar:4.0.27.Final]
        at java.lang.Thread.run(Thread.java:744) [na:1.7.0_45]
2016-01-20 22:58:05,071 [UserServer-1] WARN  
o.a.drill.exec.work.foreman.Foreman - Dropping request to move to FAILED state 
as query is already at CANCELED state (which is terminal).
2016-01-20 22:58:05,279 [295f7e8b-e1a0-3402-bfa4-d401b8758d0b:frag:0:0] INFO  
o.a.d.e.w.fragment.FragmentExecutor - 295f7e8b-e1a0-3402-bfa4-d401b8758d0b:0:0: 
State change requested CANCELLATION_REQUESTED --> FINISHED
2016-01-20 22:58:05,280 [295f7e8b-e1a0-3402-bfa4-d401b8758d0b:frag:0:0] INFO  
o.a.d.e.w.f.FragmentStatusReporter - 295f7e8b-e1a0-3402-bfa4-d401b8758d0b:0:0: 
State to report: CANCELLED
2016-01-20 22:58:05,308 [UserServer-1] INFO  
o.a.drill.exec.work.foreman.Foreman - Failure while trying communicate query 
result to initiating client. This would happen if a client is disconnected 
before response notice can be sent.
org.apache.drill.exec.rpc.ChannelClosedException: null
        at 
org.apache.drill.exec.rpc.CoordinationQueue$RpcListener.operationComplete(CoordinationQueue.java:89)
 [drill-rpc-1.5.0-SNAPSHOT.jar:1.5.0-SNAPSHOT]
        at 
org.apache.drill.exec.rpc.CoordinationQueue$RpcListener.operationComplete(CoordinationQueue.java:67)
 [drill-rpc-1.5.0-SNAPSHOT.jar:1.5.0-SNAPSHOT]
        at 
io.netty.util.concurrent.DefaultPromise.notifyListener0(DefaultPromise.java:680)
 [netty-common-4.0.27.Final.jar:4.0.27.Final]
        at 
io.netty.util.concurrent.DefaultPromise.notifyListeners0(DefaultPromise.java:603)
 [netty-common-4.0.27.Final.jar:4.0.27.Final]
        at 
io.netty.util.concurrent.DefaultPromise.notifyListeners(DefaultPromise.java:563)
 [netty-common-4.0.27.Final.jar:4.0.27.Final]
        at 
io.netty.util.concurrent.DefaultPromise.tryFailure(DefaultPromise.java:424) 
[netty-common-4.0.27.Final.jar:4.0.27.Final]
        at 
io.netty.channel.AbstractChannel$AbstractUnsafe.safeSetFailure(AbstractChannel.java:788)
 [netty-transport-4.0.27.Final.jar:4.0.27.Final]
        at 
io.netty.channel.AbstractChannel$AbstractUnsafe.write(AbstractChannel.java:689) 
[netty-transport-4.0.27.Final.jar:4.0.27.Final]
        at 
io.netty.channel.DefaultChannelPipeline$HeadContext.write(DefaultChannelPipeline.java:1114)
 [netty-transport-4.0.27.Final.jar:4.0.27.Final]
        at 
io.netty.channel.AbstractChannelHandlerContext.invokeWrite(AbstractChannelHandlerContext.java:705)
 [netty-transport-4.0.27.Final.jar:4.0.27.Final]
        at 
io.netty.channel.AbstractChannelHandlerContext.access$1900(AbstractChannelHandlerContext.java:32)
 [netty-transport-4.0.27.Final.jar:4.0.27.Final]
        at 
io.netty.channel.AbstractChannelHandlerContext$AbstractWriteTask.write(AbstractChannelHandlerContext.java:980)
 [netty-transport-4.0.27.Final.jar:4.0.27.Final]
        at 
io.netty.channel.AbstractChannelHandlerContext$WriteAndFlushTask.write(AbstractChannelHandlerContext.java:1032)
 [netty-transport-4.0.27.Final.jar:4.0.27.Final]
        at 
io.netty.channel.AbstractChannelHandlerContext$AbstractWriteTask.run(AbstractChannelHandlerContext.java:965)
 [netty-transport-4.0.27.Final.jar:4.0.27.Final]
        at 
io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:357)
 [netty-common-4.0.27.Final.jar:4.0.27.Final]
        at io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:254) 
[netty-transport-native-epoll-4.0.27.Final-linux-x86_64.jar:na]
        at 
io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:111)
 [netty-common-4.0.27.Final.jar:4.0.27.Final]
        at java.lang.Thread.run(Thread.java:744) [na:1.7.0_45]
2016-01-20 22:58:05,308 [UserServer-1] WARN  
o.a.drill.exec.work.foreman.Foreman - Dropping request to move to FAILED state 
as query is already at CANCELED state (which is terminal).
{noformat}



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