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From "Roman (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (DRILL-3119) Query stays in "CANCELLATION_REQUESTED" status in UI after OOM of Direct buffer memory
Date Fri, 04 Aug 2017 17:07:00 GMT

     [ https://issues.apache.org/jira/browse/DRILL-3119?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Roman resolved DRILL-3119.
--------------------------
       Resolution: Duplicate
    Fix Version/s: 1.11.0

> Query stays in "CANCELLATION_REQUESTED" status in UI after OOM of Direct buffer memory
> --------------------------------------------------------------------------------------
>
>                 Key: DRILL-3119
>                 URL: https://issues.apache.org/jira/browse/DRILL-3119
>             Project: Apache Drill
>          Issue Type: Bug
>          Components: Execution - Flow
>    Affects Versions: 1.0.0
>            Reporter: Hao Zhu
>            Assignee: Roman
>             Fix For: 1.11.0
>
>
> Tested in 1.0.0 with below commit id:
> {code}
> > select * from sys.version;
> +-------------------------------------------+--------------------------------------------------------------------+----------------------------+--------------+----------------------------+
> |                 commit_id                 |                           commit_message
                          |        commit_time         | build_email  |         build_time
        |
> +-------------------------------------------+--------------------------------------------------------------------+----------------------------+--------------+----------------------------+
> | d8b19759657698581cc0d01d7038797952888123  | DRILL-3100: TestImpersonationDisabledWithMiniDFS
fails on Windows  | 15.05.2015 @ 01:18:03 EDT  | Unknown      | 15.05.2015 @ 03:07:10 EDT
 |
> +-------------------------------------------+--------------------------------------------------------------------+----------------------------+--------------+----------------------------+
> 1 row selected (0.26 seconds)
> {code}
> How to reproduce:
> 1. Single node cluster.
> 2.  Reduce DRILL_MAX_DIRECT_MEMORY="2G".
> 3. Run a hash join which is big enough to trigger OOM.
> eg:
> {code}
> select count(*) from
> (
> select a.* from dfs.root.`user/hive/warehouse/passwords_csv_big` a, dfs.root.`user/hive/warehouse/passwords_csv_big`
b
> where a.columns[1]=b.columns[1]
> );
> {code}
> After that, drillbit.log shows OOM:
> {code}
> 2015-05-16 19:24:34,391 [2aa866ba-8939-b184-0ba2-291734329f88:frag:4:4] INFO  o.a.d.e.w.fragment.FragmentExecutor
- 2aa866ba-8939-b184-0ba2-291734329f88:4:4: State change requested from RUNNING --> FINISHED
for
> 2015-05-16 19:24:34,391 [2aa866ba-8939-b184-0ba2-291734329f88:frag:4:4] INFO  o.a.d.e.w.f.AbstractStatusReporter
- State changed for 2aa866ba-8939-b184-0ba2-291734329f88:4:4. New state: FINISHED
> 2015-05-16 19:24:38,561 [BitServer-5] ERROR o.a.d.exec.rpc.RpcExceptionHandler - Exception
in RPC communication.  Connection: /10.0.0.31:31012 <--> /10.0.0.31:41923 (data server).
 Closing connection.
> io.netty.handler.codec.DecoderException: java.lang.OutOfMemoryError: Direct buffer memory
> 	at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:233)
~[netty-codec-4.0.27.Final.jar:4.0.27.Final]
> 	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:339)
[netty-transport-4.0.27.Final.jar:4.0.27.Final]
> 	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:324)
[netty-transport-4.0.27.Final.jar:4.0.27.Final]
> 	at io.netty.channel.ChannelInboundHandlerAdapter.channelRead(ChannelInboundHandlerAdapter.java:86)
[netty-transport-4.0.27.Final.jar:4.0.27.Final]
> 	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:339)
[netty-transport-4.0.27.Final.jar:4.0.27.Final]
> 	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:324)
[netty-transport-4.0.27.Final.jar:4.0.27.Final]
> 	at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:847)
[netty-transport-4.0.27.Final.jar:4.0.27.Final]
> 	at io.netty.channel.epoll.AbstractEpollStreamChannel$EpollStreamUnsafe.epollInReady(AbstractEpollStreamChannel.java:618)
[netty-transport-native-epoll-4.0.27.Final-linux-x86_64.jar:na]
> 	at io.netty.channel.epoll.EpollEventLoop.processReady(EpollEventLoop.java:329) [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$2.run(SingleThreadEventExecutor.java:111)
[netty-common-4.0.27.Final.jar:4.0.27.Final]
> 	at java.lang.Thread.run(Thread.java:745) [na:1.8.0_45]
> Caused by: java.lang.OutOfMemoryError: Direct buffer memory
> 	at java.nio.Bits.reserveMemory(Bits.java:658) ~[na:1.8.0_45]
> 	at java.nio.DirectByteBuffer.<init>(DirectByteBuffer.java:123) ~[na:1.8.0_45]
> 	at java.nio.ByteBuffer.allocateDirect(ByteBuffer.java:311) ~[na:1.8.0_45]
> 	at io.netty.buffer.PoolArena$DirectArena.newChunk(PoolArena.java:437) ~[netty-buffer-4.0.27.Final.jar:4.0.27.Final]
> 	at io.netty.buffer.PoolArena.allocateNormal(PoolArena.java:179) ~[netty-buffer-4.0.27.Final.jar:4.0.27.Final]
> 	at io.netty.buffer.PoolArena.allocate(PoolArena.java:168) ~[netty-buffer-4.0.27.Final.jar:4.0.27.Final]
> 	at io.netty.buffer.PoolArena.reallocate(PoolArena.java:280) ~[netty-buffer-4.0.27.Final.jar:4.0.27.Final]
> 	at io.netty.buffer.PooledByteBuf.capacity(PooledByteBuf.java:110) ~[netty-buffer-4.0.27.Final.jar:4.0.27.Final]
> 	at io.netty.buffer.AbstractByteBuf.ensureWritable(AbstractByteBuf.java:251) ~[netty-buffer-4.0.27.Final.jar:4.0.27.Final]
> 	at io.netty.buffer.AbstractByteBuf.writeBytes(AbstractByteBuf.java:849) ~[netty-buffer-4.0.27.Final.jar:4.0.27.Final]
> 	at io.netty.buffer.AbstractByteBuf.writeBytes(AbstractByteBuf.java:841) ~[netty-buffer-4.0.27.Final.jar:4.0.27.Final]
> 	at io.netty.buffer.AbstractByteBuf.writeBytes(AbstractByteBuf.java:831) ~[netty-buffer-4.0.27.Final.jar:4.0.27.Final]
> 	at io.netty.buffer.WrappedByteBuf.writeBytes(WrappedByteBuf.java:600) ~[netty-buffer-4.0.27.Final.jar:4.0.27.Final]
> 	at io.netty.buffer.UnsafeDirectLittleEndian.writeBytes(UnsafeDirectLittleEndian.java:28)
~[drill-java-exec-1.0.0-SNAPSHOT-rebuffed.jar:4.0.27.Final]
> 	at io.netty.handler.codec.ByteToMessageDecoder$1.cumulate(ByteToMessageDecoder.java:92)
~[netty-codec-4.0.27.Final.jar:4.0.27.Final]
> 	at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:227)
~[netty-codec-4.0.27.Final.jar:4.0.27.Final]
> 	... 11 common frames omitted
> 2015-05-16 19:24:38,562 [BitClient-1] ERROR o.a.d.exec.rpc.RpcExceptionHandler - Exception
in RPC communication.  Connection: /10.0.0.31:41923 <--> /10.0.0.31:31012 (data client).
 Closing connection.
> java.io.IOException: syscall:read(...)() failed: Connection reset by peer
> 2015-05-16 19:24:38,562 [BitClient-1] INFO  o.a.drill.exec.rpc.data.DataClient - Channel
closed /10.0.0.31:41923 <--> /10.0.0.31:31012.
> 2015-05-16 19:24:38,563 [BitServer-5] WARN  o.a.d.exec.rpc.RpcExceptionHandler - Exception
occurred with closed channel.  Connection: /10.0.0.31:31012 <--> /10.0.0.31:41923 (data
server)
> java.nio.channels.ClosedChannelException: null
> 2015-05-16 19:24:38,564 [BitServer-5] INFO  o.a.d.exec.rpc.ProtobufLengthDecoder - Channel
is closed, discarding remaining 100358 byte(s) in buffer.
> 2015-05-16 19:25:36,820 [UserServer-1] INFO  o.a.drill.exec.work.foreman.Foreman - State
change requested.  RUNNING --> CANCELLATION_REQUESTED
> 2015-05-16 19:25:36,825 [BitServer-4] INFO  o.a.d.e.w.fragment.FragmentExecutor - 2aa866ba-8939-b184-0ba2-291734329f88:0:0:
State change requested from RUNNING --> CANCELLATION_REQUESTED for
> 2015-05-16 19:25:36,825 [BitServer-4] INFO  o.a.d.e.w.f.AbstractStatusReporter - State
changed for 2aa866ba-8939-b184-0ba2-291734329f88:0:0. New state: CANCELLATION_REQUESTED
> 2015-05-16 19:25:36,827 [2aa866ba-8939-b184-0ba2-291734329f88:frag:0:0] INFO  o.a.d.e.w.fragment.FragmentExecutor
- 2aa866ba-8939-b184-0ba2-291734329f88:0:0: State change requested from CANCELLATION_REQUESTED
--> FINISHED for
> 2015-05-16 19:25:36,827 [2aa866ba-8939-b184-0ba2-291734329f88:frag:0:0] INFO  o.a.d.e.w.f.AbstractStatusReporter
- State changed for 2aa866ba-8939-b184-0ba2-291734329f88:0:0. New state: CANCELLED
> 2015-05-16 19:25:36,827 [BitServer-4] INFO  o.a.d.e.w.fragment.FragmentExecutor - 2aa866ba-8939-b184-0ba2-291734329f88:5:0:
State change requested from RUNNING --> CANCELLATION_REQUESTED for
> 2015-05-16 19:25:36,827 [BitServer-4] INFO  o.a.d.e.w.f.AbstractStatusReporter - State
changed for 2aa866ba-8939-b184-0ba2-291734329f88:5:0. New state: CANCELLATION_REQUESTED
> 2015-05-16 19:25:36,827 [WorkManager-28] WARN  o.a.d.exec.rpc.control.WorkEventBus -
Fragment 2aa866ba-8939-b184-0ba2-291734329f88:0:0 not found in the work bus.
> 2015-05-16 19:25:36,831 [BitServer-4] INFO  o.a.d.e.w.fragment.FragmentExecutor - 2aa866ba-8939-b184-0ba2-291734329f88:5:1:
State change requested from RUNNING --> CANCELLATION_REQUESTED for
> 2015-05-16 19:25:36,832 [BitServer-4] INFO  o.a.d.e.w.f.AbstractStatusReporter - State
changed for 2aa866ba-8939-b184-0ba2-291734329f88:5:1. New state: CANCELLATION_REQUESTED
> 2015-05-16 19:25:36,832 [BitServer-4] INFO  o.a.d.e.w.fragment.FragmentExecutor - 2aa866ba-8939-b184-0ba2-291734329f88:5:2:
State change requested from RUNNING --> CANCELLATION_REQUESTED for
> 2015-05-16 19:25:36,832 [BitServer-4] INFO  o.a.d.e.w.f.AbstractStatusReporter - State
changed for 2aa866ba-8939-b184-0ba2-291734329f88:5:2. New state: CANCELLATION_REQUESTED
> 2015-05-16 19:25:36,833 [BitServer-4] INFO  o.a.d.e.w.fragment.FragmentExecutor - 2aa866ba-8939-b184-0ba2-291734329f88:5:3:
State change requested from RUNNING --> CANCELLATION_REQUESTED for
> 2015-05-16 19:25:36,833 [BitServer-4] INFO  o.a.d.e.w.f.AbstractStatusReporter - State
changed for 2aa866ba-8939-b184-0ba2-291734329f88:5:3. New state: CANCELLATION_REQUESTED
> 2015-05-16 19:25:36,834 [BitServer-4] INFO  o.a.d.e.w.fragment.FragmentExecutor - 2aa866ba-8939-b184-0ba2-291734329f88:5:4:
State change requested from RUNNING --> CANCELLATION_REQUESTED for
> 2015-05-16 19:25:36,834 [BitServer-4] INFO  o.a.d.e.w.f.AbstractStatusReporter - State
changed for 2aa866ba-8939-b184-0ba2-291734329f88:5:4. New state: CANCELLATION_REQUESTED
> 2015-05-16 19:25:36,835 [BitServer-4] INFO  o.a.d.e.w.fragment.FragmentExecutor - 2aa866ba-8939-b184-0ba2-291734329f88:5:5:
State change requested from RUNNING --> CANCELLATION_REQUESTED for
> 2015-05-16 19:25:36,835 [BitServer-4] INFO  o.a.d.e.w.f.AbstractStatusReporter - State
changed for 2aa866ba-8939-b184-0ba2-291734329f88:5:5. New state: CANCELLATION_REQUESTED
> 2015-05-16 19:25:36,836 [BitServer-4] INFO  o.a.d.e.w.fragment.FragmentExecutor - 2aa866ba-8939-b184-0ba2-291734329f88:2:0:
State change requested from RUNNING --> CANCELLATION_REQUESTED for
> 2015-05-16 19:25:36,836 [BitServer-4] INFO  o.a.d.e.w.f.AbstractStatusReporter - State
changed for 2aa866ba-8939-b184-0ba2-291734329f88:2:0. New state: CANCELLATION_REQUESTED
> 2015-05-16 19:25:36,837 [BitServer-4] INFO  o.a.d.e.w.fragment.FragmentExecutor - 2aa866ba-8939-b184-0ba2-291734329f88:1:0:
State change requested from RUNNING --> CANCELLATION_REQUESTED for
> 2015-05-16 19:25:36,838 [BitServer-4] INFO  o.a.d.e.w.f.AbstractStatusReporter - State
changed for 2aa866ba-8939-b184-0ba2-291734329f88:1:0. New state: CANCELLATION_REQUESTED
> 2015-05-16 19:25:36,839 [BitServer-4] INFO  o.a.d.e.w.fragment.FragmentExecutor - 2aa866ba-8939-b184-0ba2-291734329f88:1:1:
State change requested from RUNNING --> CANCELLATION_REQUESTED for
> 2015-05-16 19:25:36,839 [BitServer-4] INFO  o.a.d.e.w.f.AbstractStatusReporter - State
changed for 2aa866ba-8939-b184-0ba2-291734329f88:1:1. New state: CANCELLATION_REQUESTED
> 2015-05-16 19:25:36,839 [BitServer-4] INFO  o.a.d.e.w.fragment.FragmentExecutor - 2aa866ba-8939-b184-0ba2-291734329f88:1:2:
State change requested from RUNNING --> CANCELLATION_REQUESTED for
> 2015-05-16 19:25:36,839 [BitServer-4] INFO  o.a.d.e.w.f.AbstractStatusReporter - State
changed for 2aa866ba-8939-b184-0ba2-291734329f88:1:2. New state: CANCELLATION_REQUESTED
> 2015-05-16 19:25:36,843 [BitServer-4] INFO  o.a.d.e.w.fragment.FragmentExecutor - 2aa866ba-8939-b184-0ba2-291734329f88:1:3:
State change requested from RUNNING --> CANCELLATION_REQUESTED for
> 2015-05-16 19:25:36,848 [BitServer-4] INFO  o.a.d.e.w.f.AbstractStatusReporter - State
changed for 2aa866ba-8939-b184-0ba2-291734329f88:1:3. New state: CANCELLATION_REQUESTED
> 2015-05-16 19:25:36,849 [BitServer-4] INFO  o.a.d.e.w.fragment.FragmentExecutor - 2aa866ba-8939-b184-0ba2-291734329f88:1:4:
State change requested from RUNNING --> CANCELLATION_REQUESTED for
> 2015-05-16 19:25:36,849 [BitServer-4] INFO  o.a.d.e.w.f.AbstractStatusReporter - State
changed for 2aa866ba-8939-b184-0ba2-291734329f88:1:4. New state: CANCELLATION_REQUESTED
> 2015-05-16 19:25:36,849 [BitServer-4] INFO  o.a.d.e.w.fragment.FragmentExecutor - 2aa866ba-8939-b184-0ba2-291734329f88:1:5:
State change requested from RUNNING --> CANCELLATION_REQUESTED for
> 2015-05-16 19:25:36,850 [BitServer-4] INFO  o.a.d.e.w.f.AbstractStatusReporter - State
changed for 2aa866ba-8939-b184-0ba2-291734329f88:1:5. New state: CANCELLATION_REQUESTED
> 2015-05-16 19:25:36,850 [BitServer-4] INFO  o.a.d.e.w.fragment.FragmentExecutor - 2aa866ba-8939-b184-0ba2-291734329f88:3:0:
State change requested from RUNNING --> CANCELLATION_REQUESTED for
> 2015-05-16 19:25:36,850 [BitServer-4] INFO  o.a.d.e.w.f.AbstractStatusReporter - State
changed for 2aa866ba-8939-b184-0ba2-291734329f88:3:0. New state: CANCELLATION_REQUESTED
> 2015-05-16 19:25:36,851 [BitServer-4] INFO  o.a.d.e.w.fragment.FragmentExecutor - 2aa866ba-8939-b184-0ba2-291734329f88:4:1:
State change requested from RUNNING --> CANCELLATION_REQUESTED for
> 2015-05-16 19:25:36,851 [BitServer-4] INFO  o.a.d.e.w.f.AbstractStatusReporter - State
changed for 2aa866ba-8939-b184-0ba2-291734329f88:4:1. New state: CANCELLATION_REQUESTED
> 2015-05-16 19:25:36,854 [BitServer-4] INFO  o.a.d.e.w.fragment.FragmentExecutor - 2aa866ba-8939-b184-0ba2-291734329f88:4:3:
State change requested from RUNNING --> CANCELLATION_REQUESTED for
> 2015-05-16 19:25:36,854 [BitServer-4] INFO  o.a.d.e.w.f.AbstractStatusReporter - State
changed for 2aa866ba-8939-b184-0ba2-291734329f88:4:3. New state: CANCELLATION_REQUESTED
> 2015-05-16 19:25:36,854 [BitServer-4] INFO  o.a.d.e.w.fragment.FragmentExecutor - 2aa866ba-8939-b184-0ba2-291734329f88:4:5:
State change requested from RUNNING --> CANCELLATION_REQUESTED for
> 2015-05-16 19:25:36,854 [BitServer-4] INFO  o.a.d.e.w.f.AbstractStatusReporter - State
changed for 2aa866ba-8939-b184-0ba2-291734329f88:4:5. New state: CANCELLATION_REQUESTED
> 2015-05-16 19:25:36,964 [2aa866ba-8939-b184-0ba2-291734329f88:frag:1:0] INFO  o.a.d.e.w.fragment.FragmentExecutor
- 2aa866ba-8939-b184-0ba2-291734329f88:1:0: State change requested from CANCELLATION_REQUESTED
--> FINISHED for
> 2015-05-16 19:25:36,964 [2aa866ba-8939-b184-0ba2-291734329f88:frag:1:0] INFO  o.a.d.e.w.f.AbstractStatusReporter
- State changed for 2aa866ba-8939-b184-0ba2-291734329f88:1:0. New state: CANCELLED
> 2015-05-16 19:25:36,965 [WorkManager-21] WARN  o.a.d.exec.rpc.control.WorkEventBus -
Fragment 2aa866ba-8939-b184-0ba2-291734329f88:1:0 not found in the work bus.
> 2015-05-16 19:25:36,997 [2aa866ba-8939-b184-0ba2-291734329f88:frag:1:4] INFO  o.a.d.e.w.fragment.FragmentExecutor
- 2aa866ba-8939-b184-0ba2-291734329f88:1:4: State change requested from CANCELLATION_REQUESTED
--> FINISHED for
> 2015-05-16 19:25:36,997 [2aa866ba-8939-b184-0ba2-291734329f88:frag:1:4] INFO  o.a.d.e.w.f.AbstractStatusReporter
- State changed for 2aa866ba-8939-b184-0ba2-291734329f88:1:4. New state: CANCELLED
> 2015-05-16 19:25:36,997 [WorkManager-26] WARN  o.a.d.exec.rpc.control.WorkEventBus -
Fragment 2aa866ba-8939-b184-0ba2-291734329f88:1:4 not found in the work bus.
> 2015-05-16 19:25:37,032 [2aa866ba-8939-b184-0ba2-291734329f88:frag:1:2] INFO  o.a.d.e.w.fragment.FragmentExecutor
- 2aa866ba-8939-b184-0ba2-291734329f88:1:2: State change requested from CANCELLATION_REQUESTED
--> FINISHED for
> 2015-05-16 19:25:37,032 [2aa866ba-8939-b184-0ba2-291734329f88:frag:1:2] INFO  o.a.d.e.w.f.AbstractStatusReporter
- State changed for 2aa866ba-8939-b184-0ba2-291734329f88:1:2. New state: CANCELLED
> 2015-05-16 19:25:37,033 [WorkManager-23] WARN  o.a.d.exec.rpc.control.WorkEventBus -
Fragment 2aa866ba-8939-b184-0ba2-291734329f88:1:2 not found in the work bus.
> 2015-05-16 19:25:37,079 [2aa866ba-8939-b184-0ba2-291734329f88:frag:1:5] INFO  o.a.d.e.w.fragment.FragmentExecutor
- 2aa866ba-8939-b184-0ba2-291734329f88:1:5: State change requested from CANCELLATION_REQUESTED
--> FINISHED for
> 2015-05-16 19:25:37,079 [2aa866ba-8939-b184-0ba2-291734329f88:frag:1:5] INFO  o.a.d.e.w.f.AbstractStatusReporter
- State changed for 2aa866ba-8939-b184-0ba2-291734329f88:1:5. New state: CANCELLED
> 2015-05-16 19:25:37,079 [WorkManager-17] WARN  o.a.d.exec.rpc.control.WorkEventBus -
Fragment 2aa866ba-8939-b184-0ba2-291734329f88:1:5 not found in the work bus.
> 2015-05-16 19:25:37,269 [2aa866ba-8939-b184-0ba2-291734329f88:frag:1:3] INFO  o.a.d.e.w.fragment.FragmentExecutor
- 2aa866ba-8939-b184-0ba2-291734329f88:1:3: State change requested from CANCELLATION_REQUESTED
--> FINISHED for
> 2015-05-16 19:25:37,269 [2aa866ba-8939-b184-0ba2-291734329f88:frag:1:3] INFO  o.a.d.e.w.f.AbstractStatusReporter
- State changed for 2aa866ba-8939-b184-0ba2-291734329f88:1:3. New state: CANCELLED
> 2015-05-16 19:25:37,274 [WorkManager-24] WARN  o.a.d.exec.rpc.control.WorkEventBus -
Fragment 2aa866ba-8939-b184-0ba2-291734329f88:1:3 not found in the work bus.
> 2015-05-16 19:25:37,379 [2aa866ba-8939-b184-0ba2-291734329f88:frag:1:1] INFO  o.a.d.e.w.fragment.FragmentExecutor
- 2aa866ba-8939-b184-0ba2-291734329f88:1:1: State change requested from CANCELLATION_REQUESTED
--> FINISHED for
> 2015-05-16 19:25:37,379 [2aa866ba-8939-b184-0ba2-291734329f88:frag:1:1] INFO  o.a.d.e.w.f.AbstractStatusReporter
- State changed for 2aa866ba-8939-b184-0ba2-291734329f88:1:1. New state: CANCELLED
> 2015-05-16 19:25:37,380 [WorkManager-22] WARN  o.a.d.exec.rpc.control.WorkEventBus -
Fragment 2aa866ba-8939-b184-0ba2-291734329f88:1:1 not found in the work bus.
> 2015-05-16 19:25:40,209 [UserServer-1] INFO  o.a.drill.exec.work.foreman.Foreman - State
change requested.  CANCELLATION_REQUESTED --> CANCELLATION_REQUESTED
> {code}
> Since then, the query will stay as "CANCELLATION_REQUESTED" status and can not be cleaned
without drillbit restart.



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