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From "Chun Chang (JIRA)" <j...@apache.org>
Subject [jira] [Created] (DRILL-2050) remote rpc exception
Date Wed, 21 Jan 2015 18:28:34 GMT
Chun Chang created DRILL-2050:
---------------------------------

             Summary: remote rpc exception
                 Key: DRILL-2050
                 URL: https://issues.apache.org/jira/browse/DRILL-2050
             Project: Apache Drill
          Issue Type: Bug
          Components: Execution - RPC
    Affects Versions: 0.8.0
            Reporter: Chun Chang
            Assignee: Jacques Nadeau


git.branch=8d1e1affe86a5adca3bc17eeaf7520f0d379a393
git.commit.time=20.01.2015 @ 23\:02\:03 PST

The following tpcds-implala-sf1 automation query caused RemoteRpcException. This query works
most of the time. But fails on average once in every four or five tries. Test data can be
downloaded from

http://apache-drill.s3.amazonaws.com/files/tpcds-sf1-parquet.tgz

{code}
0: jdbc:drill:schema=dfs.drillTestDir> select
. . . . . . . . . . . . . . . . . . .>   *
. . . . . . . . . . . . . . . . . . .> from
. . . . . . . . . . . . . . . . . . .>   (select
. . . . . . . . . . . . . . . . . . .>     i.i_manufact_id as imid,
. . . . . . . . . . . . . . . . . . .>     sum(ss.ss_sales_price) sum_sales
. . . . . . . . . . . . . . . . . . .>     -- avg(sum(ss.ss_sales_price)) over (partition
by i.i_manufact_id) avg_quarterly_sales
. . . . . . . . . . . . . . . . . . .>   from
. . . . . . . . . . . . . . . . . . .>     item as i,
. . . . . . . . . . . . . . . . . . .>     store_sales as ss,
. . . . . . . . . . . . . . . . . . .>     date_dim as d,
. . . . . . . . . . . . . . . . . . .>     store as s
. . . . . . . . . . . . . . . . . . .>   where
. . . . . . . . . . . . . . . . . . .>     ss.ss_item_sk = i.i_item_sk
. . . . . . . . . . . . . . . . . . .>     and ss.ss_sold_date_sk = d.d_date_sk
. . . . . . . . . . . . . . . . . . .>     and ss.ss_store_sk = s.s_store_sk
. . . . . . . . . . . . . . . . . . .>     and d.d_month_seq in (1212, 1212 + 1, 1212 +
2, 1212 + 3, 1212 + 4, 1212 + 5, 1212 + 6, 1212 + 7, 1212 + 8, 1212 + 9, 1212 + 10, 1212 +
11)
. . . . . . . . . . . . . . . . . . .>     and ((i.i_category in ('Books', 'Children',
'Electronics')
. . . . . . . . . . . . . . . . . . .>       and i.i_class in ('personal', 'portable',
'reference', 'self-help')
. . . . . . . . . . . . . . . . . . .>       and i.i_brand in ('scholaramalgamalg #14',
'scholaramalgamalg #7', 'exportiunivamalg #9', 'scholaramalgamalg #9'))
. . . . . . . . . . . . . . . . . . .>     or (i.i_category in ('Women', 'Music', 'Men')
. . . . . . . . . . . . . . . . . . .>       and i.i_class in ('accessories', 'classical',
'fragrances', 'pants')
. . . . . . . . . . . . . . . . . . .>       and i.i_brand in ('amalgimporto #1', 'edu
packscholar #1', 'exportiimporto #1', 'importoamalg #1')))
. . . . . . . . . . . . . . . . . . .>     and ss.ss_sold_date_sk between 2451911 and 2452275
-- partition key filter
. . . . . . . . . . . . . . . . . . .>   group by
. . . . . . . . . . . . . . . . . . .>     i.i_manufact_id,
. . . . . . . . . . . . . . . . . . .>     d.d_qoy
. . . . . . . . . . . . . . . . . . .>   ) tmp1
. . . . . . . . . . . . . . . . . . .> -- where
. . . . . . . . . . . . . . . . . . .> --   case when avg_quarterly_sales > 0 then abs
(sum_sales - avg_quarterly_sales) / avg_quarterly_sales else null end > 0.1
. . . . . . . . . . . . . . . . . . .> order by
. . . . . . . . . . . . . . . . . . .>   -- avg_quarterly_sales,
. . . . . . . . . . . . . . . . . . .>   sum_sales,
. . . . . . . . . . . . . . . . . . .>   tmp1.imid
. . . . . . . . . . . . . . . . . . .> limit 100;
+------------+------------+
|    imid    | sum_sales  |
+------------+------------+
Query failed: RemoteRpcException: Failure while running fragment., Attempted to close accountor
with 1 buffer(s) still allocatedfor QueryId: 2b401913-4292-26d4-18b0-f105afe06121, MajorFragmentId:
2, MinorFragmentId: 0.


	Total 1 allocation(s) of byte size(s): 771, at stack location:
		org.apache.drill.exec.memory.TopLevelAllocator$ChildAllocator.takeOwnership(TopLevelAllocator.java:197)
		org.apache.drill.exec.rpc.data.DataServer.handle(DataServer.java:119)
		org.apache.drill.exec.rpc.data.DataServer.handle(DataServer.java:48)
		org.apache.drill.exec.rpc.RpcBus$InboundHandler.decode(RpcBus.java:194)
		org.apache.drill.exec.rpc.RpcBus$InboundHandler.decode(RpcBus.java:173)
		io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:89)
		io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:333)
		io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:319)
		io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:103)
		io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:333)
		io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:319)
		io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:161)
		io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:333)
		io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:319)
		io.netty.channel.ChannelInboundHandlerAdapter.channelRead(ChannelInboundHandlerAdapter.java:86)
		io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:333)
		io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:319)
		io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:787)
		io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:130)
		io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:511)
		io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:468)
		io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:382)
		io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:354)
		io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:116)
		java.lang.Thread.run(Thread.java:744)
 [ dcc2416d-625a-4deb-a309-b9caf690d012 on atsqa6c88.qa.lab:31010 ]
[ dcc2416d-625a-4deb-a309-b9caf690d012 on atsqa6c88.qa.lab:31010 ]


java.lang.RuntimeException: java.sql.SQLException: Failure while executing query.
	at sqlline.SqlLine$IncrementalRows.hasNext(SqlLine.java:2514)
	at sqlline.SqlLine$TableOutputFormat.print(SqlLine.java:2148)
	at sqlline.SqlLine.print(SqlLine.java:1809)
	at sqlline.SqlLine$Commands.execute(SqlLine.java:3766)
	at sqlline.SqlLine$Commands.sql(SqlLine.java:3663)
	at sqlline.SqlLine.dispatch(SqlLine.java:889)
	at sqlline.SqlLine.begin(SqlLine.java:763)
	at sqlline.SqlLine.start(SqlLine.java:498)
	at sqlline.SqlLine.main(SqlLine.java:460)
{code}

Stack trace in drillbit.log:

{code}
015-01-21 09:50:39,036 [BitServer-2] INFO  o.a.drill.exec.work.foreman.Foreman - State change
requested.  RUNNING --> FAILED
org.apache.drill.exec.rpc.RemoteRpcException: Failure while running fragment., Attempted to
close accountor with 1 buffer(s) still allocatedfor QueryId: 2b401913-4292-26d4-18b0-f105afe06121,
MajorFragmentId: 2, MinorFragmentId: 0.


        Total 1 allocation(s) of byte size(s): 771, at stack location:
                org.apache.drill.exec.memory.TopLevelAllocator$ChildAllocator.takeOwnership(TopLevelAllocator.java:197)
                org.apache.drill.exec.rpc.data.DataServer.handle(DataServer.java:119)
                org.apache.drill.exec.rpc.data.DataServer.handle(DataServer.java:48)
                org.apache.drill.exec.rpc.RpcBus$InboundHandler.decode(RpcBus.java:194)
                org.apache.drill.exec.rpc.RpcBus$InboundHandler.decode(RpcBus.java:173)
                io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:89)
                io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:333)
                io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:319)
                io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:103)
                io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:333)
                io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:319)
                io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:161)
                io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:333)
                io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:319)
                io.netty.channel.ChannelInboundHandlerAdapter.channelRead(ChannelInboundHandlerAdapter.java:86)
                io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:333)
                io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:319)
                io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:787)
                io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:130)
                io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:511)
                io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:468)
                io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:382)
                io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:354)
                io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:116)
                java.lang.Thread.run(Thread.java:744)
 [ dcc2416d-625a-4deb-a309-b9caf690d012 on atsqa6c88.qa.lab:31010 ]
[ dcc2416d-625a-4deb-a309-b9caf690d012 on atsqa6c88.qa.lab:31010 ]

        at org.apache.drill.exec.work.foreman.QueryManager.statusUpdate(QueryManager.java:95)
[drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:0.8.0-SNAPSHOT]
        at org.apache.drill.exec.rpc.control.WorkEventBus.status(WorkEventBus.java:75) [drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:0.8.0-SNAPSHOT]
        at org.apache.drill.exec.work.batch.ControlHandlerImpl.handle(ControlHandlerImpl.java:82)
[drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:0.8.0-SNAPSHOT]
        at org.apache.drill.exec.rpc.control.ControlServer.handle(ControlServer.java:60) [drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:0.8.0-SNAPSHOT]
        at org.apache.drill.exec.rpc.control.ControlServer.handle(ControlServer.java:38) [drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:0.8.0-SNAPSHOT]
        at org.apache.drill.exec.rpc.RpcBus.handle(RpcBus.java:58) [drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:0.8.0-SNAPSHOT]
        at org.apache.drill.exec.rpc.RpcBus$InboundHandler.decode(RpcBus.java:194) [drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:0.8.0-SNAPSHOT]
        at org.apache.drill.exec.rpc.RpcBus$InboundHandler.decode(RpcBus.java:173) [drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:0.8.0-SNAPSHOT]
        at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:89)
[netty-codec-4.0.24.Final.jar:4.0.24.Final]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:333)
[netty-transport-4.0.24.Final.jar:4.0.24.Final]
        at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:319)
[netty-transport-4.0.24.Final.jar:4.0.24.Final]
        at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:103)
[netty-codec-4.0.24.Final.jar:4.0.24.Final]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:333)
[netty-transport-4.0.24.Final.jar:4.0.24.Final]
        at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:319)
[netty-transport-4.0.24.Final.jar:4.0.24.Final]
        at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:161)
[netty-codec-4.0.24.Final.jar:4.0.24.Final]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:333)
[netty-transport-4.0.24.Final.jar:4.0.24.Final]
        at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:319)
[netty-transport-4.0.24.Final.jar:4.0.24.Final]
        at io.netty.channel.ChannelInboundHandlerAdapter.channelRead(ChannelInboundHandlerAdapter.java:86)
[netty-transport-4.0.24.Final.jar:4.0.24.Final]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:333)
[netty-transport-4.0.24.Final.jar:4.0.24.Final]
        at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:319)
[netty-transport-4.0.24.Final.jar:4.0.24.Final]
        at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:787)
[netty-transport-4.0.24.Final.jar:4.0.24.Final]
        at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:130)
[netty-transport-4.0.24.Final.jar:4.0.24.Final]
        at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:511) [netty-transport-4.0.24.Final.jar:4.0.24.Final]
        at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:468)
[netty-transport-4.0.24.Final.jar:4.0.24.Final]
        at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:382) [netty-transport-4.0.24.Final.jar:4.0.24.Final]
        at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:354) [netty-transport-4.0.24.Final.jar:4.0.24.Final]
        at io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:116)
[netty-common-4.0.24.Final.jar:4.0.24.Final]
        at java.lang.Thread.run(Thread.java:744) [na:1.7.0_51]
2015-01-21 09:50:39,069 [BitServer-2] ERROR o.a.drill.exec.work.foreman.Foreman - Error 9d88d25a-86d8-41f3-b590-618bac101c1e:
RemoteRpcException: Failure while running fragment., Attempted to close accountor with 1 buffer(s)
still allocatedfor QueryId: 2b401913-4292-26d4-18b0-f105afe06121, MajorFragmentId: 2, MinorFragmentId:
0.

        Total 1 allocation(s) of byte size(s): 771, at stack location:
                org.apache.drill.exec.memory.TopLevelAllocator$ChildAllocator.takeOwnership(TopLevelAllocator.java:197)
                org.apache.drill.exec.rpc.data.DataServer.handle(DataServer.java:119)
                org.apache.drill.exec.rpc.data.DataServer.handle(DataServer.java:48)
                org.apache.drill.exec.rpc.RpcBus$InboundHandler.decode(RpcBus.java:194)
                org.apache.drill.exec.rpc.RpcBus$InboundHandler.decode(RpcBus.java:173)
                io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:89)
                io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:333)
                io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:319)
                io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:103)
                io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:333)
                io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:319)
                io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:161)
                io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:333)
                io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:319)
                io.netty.channel.ChannelInboundHandlerAdapter.channelRead(ChannelInboundHandlerAdapter.java:86)
                io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:333)
                io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:319)
                io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:787)
                io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:130)
                io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:511)
                io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:468)
                io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:382)
                io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:354)
                io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:116)
                java.lang.Thread.run(Thread.java:744)
 [ dcc2416d-625a-4deb-a309-b9caf690d012 on atsqa6c88.qa.lab:31010 ]
[ dcc2416d-625a-4deb-a309-b9caf690d012 on atsqa6c88.qa.lab:31010 ]

org.apache.drill.exec.rpc.RemoteRpcException: Failure while running fragment., Attempted to
close accountor with 1 buffer(s) still allocatedfor QueryId: 2b401913-4292-26d4-18b0-f105afe06121,
MajorFragmentId: 2, MinorFragmentId: 0.


        Total 1 allocation(s) of byte size(s): 771, at stack location:
                org.apache.drill.exec.memory.TopLevelAllocator$ChildAllocator.takeOwnership(TopLevelAllocator.java:197)
                org.apache.drill.exec.rpc.data.DataServer.handle(DataServer.java:119)
                org.apache.drill.exec.rpc.data.DataServer.handle(DataServer.java:48)
                org.apache.drill.exec.rpc.RpcBus$InboundHandler.decode(RpcBus.java:194)
                org.apache.drill.exec.rpc.RpcBus$InboundHandler.decode(RpcBus.java:173)
                io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:89)
                io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:333)
                io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:319)
                io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:103)
                io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:333)
                io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:319)
                io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:161)
                io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:333)
                io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:319)
                io.netty.channel.ChannelInboundHandlerAdapter.channelRead(ChannelInboundHandlerAdapter.java:86)
                io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:333)
                io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:319)
                io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:787)
                io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:130)
                io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:511)
                io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:468)
                io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:382)
                io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:354)
                io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:116)
                java.lang.Thread.run(Thread.java:744)
 [ dcc2416d-625a-4deb-a309-b9caf690d012 on atsqa6c88.qa.lab:31010 ]
[ dcc2416d-625a-4deb-a309-b9caf690d012 on atsqa6c88.qa.lab:31010 ]

        at org.apache.drill.exec.work.foreman.QueryManager.statusUpdate(QueryManager.java:95)
[drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:0.8.0-SNAPSHOT]
        at org.apache.drill.exec.rpc.control.WorkEventBus.status(WorkEventBus.java:75) [drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:0.8.0-SNAPSHOT]
        at org.apache.drill.exec.work.batch.ControlHandlerImpl.handle(ControlHandlerImpl.java:82)
[drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:0.8.0-SNAPSHOT]
        at org.apache.drill.exec.rpc.control.ControlServer.handle(ControlServer.java:60) [drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:0.8.0-SNAPSHOT]
        at org.apache.drill.exec.rpc.control.ControlServer.handle(ControlServer.java:38) [drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:0.8.0-SNAPSHOT]
        at org.apache.drill.exec.rpc.RpcBus.handle(RpcBus.java:58) [drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:0.8.0-SNAPSHOT]
        at org.apache.drill.exec.rpc.RpcBus$InboundHandler.decode(RpcBus.java:194) [drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:0.8.0-SNAPSHOT]
        at org.apache.drill.exec.rpc.RpcBus$InboundHandler.decode(RpcBus.java:173) [drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:0.8.0-SNAPSHOT]
        at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:89)
[netty-codec-4.0.24.Final.jar:4.0.24.Final]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:333)
[netty-transport-4.0.24.Final.jar:4.0.24.Final]
        at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:319)
[netty-transport-4.0.24.Final.jar:4.0.24.Final]
        at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:103)
[netty-codec-4.0.24.Final.jar:4.0.24.Final]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:333)
[netty-transport-4.0.24.Final.jar:4.0.24.Final]
        at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:319)
[netty-transport-4.0.24.Final.jar:4.0.24.Final]
        at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:161)
[netty-codec-4.0.24.Final.jar:4.0.24.Final]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:333)
[netty-transport-4.0.24.Final.jar:4.0.24.Final]
        at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:319)
[netty-transport-4.0.24.Final.jar:4.0.24.Final]
        at io.netty.channel.ChannelInboundHandlerAdapter.channelRead(ChannelInboundHandlerAdapter.java:86)
[netty-transport-4.0.24.Final.jar:4.0.24.Final]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:333)
[netty-transport-4.0.24.Final.jar:4.0.24.Final]
        at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:319)
[netty-transport-4.0.24.Final.jar:4.0.24.Final]
        at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:787)
[netty-transport-4.0.24.Final.jar:4.0.24.Final]
        at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:130)
[netty-transport-4.0.24.Final.jar:4.0.24.Final]
        at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:511) [netty-transport-4.0.24.Final.jar:4.0.24.Final]
        at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:468)
[netty-transport-4.0.24.Final.jar:4.0.24.Final]
        at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:382) [netty-transport-4.0.24.Final.jar:4.0.24.Final]
        at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:354) [netty-transport-4.0.24.Final.jar:4.0.24.Final]
        at io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:116)
[netty-common-4.0.24.Final.jar:4.0.24.Final]
        at java.lang.Thread.run(Thread.java:744) [na:1.7.0_51]
{code}




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