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Posted to issues@drill.apache.org by "Khurram Faraaz (JIRA)" <ji...@apache.org> on 2015/05/27 22:51:26 UTC
[jira] [Commented] (DRILL-3197) Query that uses window functions
fails
[ https://issues.apache.org/jira/browse/DRILL-3197?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14561698#comment-14561698 ]
Khurram Faraaz commented on DRILL-3197:
---------------------------------------
Removing the cast to double from the AVG aggregate function returns a different Exception.
{code}
0: jdbc:drill:schema=dfs.tmp> select columns[0], columns[2], columns[3], AVG(columns[6]) OVER (PARTITION BY columns[0]) FROM `airports.csv`;
Error: SYSTEM ERROR: org.apache.drill.exec.exception.SchemaChangeException: Failure while trying to materialize incoming schema. Errors:
Error in expression at index -1. Error: Missing function implementation: [castBIGINT(BIT-OPTIONAL)]. Full expression: --UNKNOWN EXPRESSION--..
Fragment 0:0
[Error Id: 0f74d9ce-6116-46a9-bff3-24eff5112dfe on centos-01.qa.lab:31010] (state=,code=0)
{code}
Related stack trace from drillbit.log
{code}
2015-05-27 20:48:32,663 [BitServer-6] INFO o.a.drill.exec.work.foreman.Foreman - State change requested. RUNNING --> FAILED
org.apache.drill.common.exceptions.UserRemoteException: SYSTEM ERROR: org.apache.drill.exec.exception.SchemaChangeException: Failure while trying to materialize incoming schema. Errors:
Error in expression at index -1. Error: Missing function implementation: [castBIGINT(BIT-OPTIONAL)]. Full expression: --UNKNOWN EXPRESSION--..
Fragment 0:0
[Error Id: 4f36a1a5-9901-4a32-82d5-ee926104415f on centos-04.qa.lab:31010]
at org.apache.drill.exec.work.foreman.QueryManager$1.statusUpdate(QueryManager.java:458) [drill-java-exec-1.0.0-mapr-r1-rebuffed.jar:1.0.0-mapr-r1]
at org.apache.drill.exec.rpc.control.WorkEventBus.statusUpdate(WorkEventBus.java:71) [drill-java-exec-1.0.0-mapr-r1-rebuffed.jar:1.0.0-mapr-r1]
at org.apache.drill.exec.work.batch.ControlMessageHandler.handle(ControlMessageHandler.java:79) [drill-java-exec-1.0.0-mapr-r1-rebuffed.jar:1.0.0-mapr-r1]
at org.apache.drill.exec.rpc.control.ControlServer.handle(ControlServer.java:61) [drill-java-exec-1.0.0-mapr-r1-rebuffed.jar:1.0.0-mapr-r1]
at org.apache.drill.exec.rpc.control.ControlServer.handle(ControlServer.java:38) [drill-java-exec-1.0.0-mapr-r1-rebuffed.jar:1.0.0-mapr-r1]
at org.apache.drill.exec.rpc.RpcBus.handle(RpcBus.java:61) [drill-java-exec-1.0.0-mapr-r1-rebuffed.jar:1.0.0-mapr-r1]
at org.apache.drill.exec.rpc.RpcBus$InboundHandler.decode(RpcBus.java:233) [drill-java-exec-1.0.0-mapr-r1-rebuffed.jar:1.0.0-mapr-r1]
at org.apache.drill.exec.rpc.RpcBus$InboundHandler.decode(RpcBus.java:205) [drill-java-exec-1.0.0-mapr-r1-rebuffed.jar:1.0.0-mapr-r1]
at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:89) [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.handler.timeout.ReadTimeoutHandler.channelRead(ReadTimeoutHandler.java:150) [netty-handler-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.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:103) [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.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:242) [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$2.run(SingleThreadEventExecutor.java:111) [netty-common-4.0.27.Final.jar:4.0.27.Final]
at java.lang.Thread.run(Thread.java:744) [na:1.7.0_45]
{code}
> Query that uses window functions fails
> --------------------------------------
>
> Key: DRILL-3197
> URL: https://issues.apache.org/jira/browse/DRILL-3197
> Project: Apache Drill
> Issue Type: Bug
> Components: Execution - Flow
> Affects Versions: 1.0.0
> Environment: faec150598840c40827e6493992d81209aa936da
> Reporter: Khurram Faraaz
> Assignee: Chris Westin
> Labels: window_function
>
> Window functions were enabled, test was run on 4 node cluster on CentOS.
> This query works on Postgres 9.3 for the same input data.
> {code}
> select id, type, name, AVG(elevation_ft) OVER (PARTITION BY id) FROM airports;
> {code}
> The equivalent query failed on Drill, for exactly same data from airports.csv file.
> {code}
> 0: jdbc:drill:schema=dfs.tmp> select columns[0], columns[2], columns[3], AVG(cast(columns[6] as double)) OVER (PARTITION BY columns[0]) FROM `airports.csv`;
> Error: SYSTEM ERROR: java.lang.NumberFormatException: empty String
> Fragment 0:0
> [Error Id: ea216af8-baf3-406b-a811-4052072dff79 on centos-02.qa.lab:31010] (state=,code=0)
> {code}
> Stack trace from drillbit.log
> {code}
> 2015-05-27 18:48:45,122 [2a99ee73-479d-4b7d-5237-e597251266dc:frag:0:0] ERROR o.a.d.c.exceptions.UserException - SYSTEM ERROR: java.lang.NumberFormatException: empty String
> Fragment 0:0
> [Error Id: ea216af8-baf3-406b-a811-4052072dff79 on centos-02.qa.lab:31010]
> org.apache.drill.common.exceptions.UserException: SYSTEM ERROR: java.lang.NumberFormatException: empty String
> Fragment 0:0
> [Error Id: ea216af8-baf3-406b-a811-4052072dff79 on centos-02.qa.lab:31010]
> at org.apache.drill.common.exceptions.UserException$Builder.build(UserException.java:522) ~[drill-common-1.0.0-mapr-r1-rebuffed.jar:1.0.0-mapr-r1]
> at org.apache.drill.exec.work.fragment.FragmentExecutor.sendFinalState(FragmentExecutor.java:324) [drill-java-exec-1.0.0-mapr-r1-rebuffed.jar:1.0.0-mapr-r1]
> at org.apache.drill.exec.work.fragment.FragmentExecutor.cleanup(FragmentExecutor.java:180) [drill-java-exec-1.0.0-mapr-r1-rebuffed.jar:1.0.0-mapr-r1]
> at org.apache.drill.exec.work.fragment.FragmentExecutor.run(FragmentExecutor.java:293) [drill-java-exec-1.0.0-mapr-r1-rebuffed.jar:1.0.0-mapr-r1]
> at org.apache.drill.common.SelfCleaningRunnable.run(SelfCleaningRunnable.java:38) [drill-common-1.0.0-mapr-r1-rebuffed.jar:1.0.0-mapr-r1]
> 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: java.lang.NumberFormatException: empty String
> at sun.misc.FloatingDecimal.readJavaFormatString(FloatingDecimal.java:1011) ~[na:1.7.0_45]
> at java.lang.Double.parseDouble(Double.java:540) ~[na:1.7.0_45]
> at org.apache.drill.exec.test.generated.ProjectorGen4.doEval(ProjectorTemplate.java:76) ~[na:na]
> at org.apache.drill.exec.test.generated.ProjectorGen4.projectRecords(ProjectorTemplate.java:62) ~[na:na]
> at org.apache.drill.exec.physical.impl.project.ProjectRecordBatch.doWork(ProjectRecordBatch.java:172) ~[drill-java-exec-1.0.0-mapr-r1-rebuffed.jar:1.0.0-mapr-r1]
> at org.apache.drill.exec.record.AbstractSingleRecordBatch.innerNext(AbstractSingleRecordBatch.java:93) ~[drill-java-exec-1.0.0-mapr-r1-rebuffed.jar:1.0.0-mapr-r1]
> at org.apache.drill.exec.physical.impl.project.ProjectRecordBatch.innerNext(ProjectRecordBatch.java:129) ~[drill-java-exec-1.0.0-mapr-r1-rebuffed.jar:1.0.0-mapr-r1]
> at org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:146) ~[drill-java-exec-1.0.0-mapr-r1-rebuffed.jar:1.0.0-mapr-r1]
> at org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:105) ~[drill-java-exec-1.0.0-mapr-r1-rebuffed.jar:1.0.0-mapr-r1]
> at org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:95) ~[drill-java-exec-1.0.0-mapr-r1-rebuffed.jar:1.0.0-mapr-r1]
> at org.apache.drill.exec.physical.impl.xsort.ExternalSortBatch.buildSchema(ExternalSortBatch.java:189) ~[drill-java-exec-1.0.0-mapr-r1-rebuffed.jar:1.0.0-mapr-r1]
> at org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:127) ~[drill-java-exec-1.0.0-mapr-r1-rebuffed.jar:1.0.0-mapr-r1]
> at org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:105) ~[drill-java-exec-1.0.0-mapr-r1-rebuffed.jar:1.0.0-mapr-r1]
> at org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:95) ~[drill-java-exec-1.0.0-mapr-r1-rebuffed.jar:1.0.0-mapr-r1]
> at org.apache.drill.exec.record.AbstractSingleRecordBatch.innerNext(AbstractSingleRecordBatch.java:51) ~[drill-java-exec-1.0.0-mapr-r1-rebuffed.jar:1.0.0-mapr-r1]
> at org.apache.drill.exec.physical.impl.svremover.RemovingRecordBatch.innerNext(RemovingRecordBatch.java:92) ~[drill-java-exec-1.0.0-mapr-r1-rebuffed.jar:1.0.0-mapr-r1]
> at org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:146) ~[drill-java-exec-1.0.0-mapr-r1-rebuffed.jar:1.0.0-mapr-r1]
> at org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:105) ~[drill-java-exec-1.0.0-mapr-r1-rebuffed.jar:1.0.0-mapr-r1]
> at org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:95) ~[drill-java-exec-1.0.0-mapr-r1-rebuffed.jar:1.0.0-mapr-r1]
> at org.apache.drill.exec.physical.impl.window.WindowFrameRecordBatch.buildSchema(WindowFrameRecordBatch.java:182) ~[drill-java-exec-1.0.0-mapr-r1-rebuffed.jar:1.0.0-mapr-r1]
> at org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:127) ~[drill-java-exec-1.0.0-mapr-r1-rebuffed.jar:1.0.0-mapr-r1]
> at org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:105) ~[drill-java-exec-1.0.0-mapr-r1-rebuffed.jar:1.0.0-mapr-r1]
> at org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:95) ~[drill-java-exec-1.0.0-mapr-r1-rebuffed.jar:1.0.0-mapr-r1]
> at org.apache.drill.exec.record.AbstractSingleRecordBatch.innerNext(AbstractSingleRecordBatch.java:51) ~[drill-java-exec-1.0.0-mapr-r1-rebuffed.jar:1.0.0-mapr-r1]
> at org.apache.drill.exec.physical.impl.project.ProjectRecordBatch.innerNext(ProjectRecordBatch.java:129) ~[drill-java-exec-1.0.0-mapr-r1-rebuffed.jar:1.0.0-mapr-r1]
> at org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:146) ~[drill-java-exec-1.0.0-mapr-r1-rebuffed.jar:1.0.0-mapr-r1]
> at org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:105) ~[drill-java-exec-1.0.0-mapr-r1-rebuffed.jar:1.0.0-mapr-r1]
> at org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:95) ~[drill-java-exec-1.0.0-mapr-r1-rebuffed.jar:1.0.0-mapr-r1]
> at org.apache.drill.exec.record.AbstractSingleRecordBatch.innerNext(AbstractSingleRecordBatch.java:51) ~[drill-java-exec-1.0.0-mapr-r1-rebuffed.jar:1.0.0-mapr-r1]
> at org.apache.drill.exec.physical.impl.project.ProjectRecordBatch.innerNext(ProjectRecordBatch.java:129) ~[drill-java-exec-1.0.0-mapr-r1-rebuffed.jar:1.0.0-mapr-r1]
> at org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:146) ~[drill-java-exec-1.0.0-mapr-r1-rebuffed.jar:1.0.0-mapr-r1]
> at org.apache.drill.exec.physical.impl.BaseRootExec.next(BaseRootExec.java:83) ~[drill-java-exec-1.0.0-mapr-r1-rebuffed.jar:1.0.0-mapr-r1]
> at org.apache.drill.exec.physical.impl.ScreenCreator$ScreenRoot.innerNext(ScreenCreator.java:80) ~[drill-java-exec-1.0.0-mapr-r1-rebuffed.jar:1.0.0-mapr-r1]
> at org.apache.drill.exec.physical.impl.BaseRootExec.next(BaseRootExec.java:73) ~[drill-java-exec-1.0.0-mapr-r1-rebuffed.jar:1.0.0-mapr-r1]
> at org.apache.drill.exec.work.fragment.FragmentExecutor$1.run(FragmentExecutor.java:259) ~[drill-java-exec-1.0.0-mapr-r1-rebuffed.jar:1.0.0-mapr-r1]
> at org.apache.drill.exec.work.fragment.FragmentExecutor$1.run(FragmentExecutor.java:253) ~[drill-java-exec-1.0.0-mapr-r1-rebuffed.jar:1.0.0-mapr-r1]
> at java.security.AccessController.doPrivileged(Native Method) ~[na:1.7.0_45]
> at javax.security.auth.Subject.doAs(Subject.java:415) ~[na:1.7.0_45]
> at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1566) ~[hadoop-common-2.5.1-mapr-1503.jar:na]
> at org.apache.drill.exec.work.fragment.FragmentExecutor.run(FragmentExecutor.java:253) [drill-java-exec-1.0.0-mapr-r1-rebuffed.jar:1.0.0-mapr-r1]
> ... 4 common frames omitted
> 2015-05-27 18:48:45,132 [BitServer-6] INFO o.a.drill.exec.work.foreman.Foreman - State change requested. RUNNING --> FAILED
> org.apache.drill.common.exceptions.UserRemoteException: SYSTEM ERROR: java.lang.NumberFormatException: empty String
> Fragment 0:0
> [Error Id: ea216af8-baf3-406b-a811-4052072dff79 on centos-02.qa.lab:31010]
> at org.apache.drill.exec.work.foreman.QueryManager$1.statusUpdate(QueryManager.java:458) [drill-java-exec-1.0.0-mapr-r1-rebuffed.jar:1.0.0-mapr-r1]
> at org.apache.drill.exec.rpc.control.WorkEventBus.statusUpdate(WorkEventBus.java:71) [drill-java-exec-1.0.0-mapr-r1-rebuffed.jar:1.0.0-mapr-r1]
> at org.apache.drill.exec.work.batch.ControlMessageHandler.handle(ControlMessageHandler.java:79) [drill-java-exec-1.0.0-mapr-r1-rebuffed.jar:1.0.0-mapr-r1]
> at org.apache.drill.exec.rpc.control.ControlServer.handle(ControlServer.java:61) [drill-java-exec-1.0.0-mapr-r1-rebuffed.jar:1.0.0-mapr-r1]
> at org.apache.drill.exec.rpc.control.ControlServer.handle(ControlServer.java:38) [drill-java-exec-1.0.0-mapr-r1-rebuffed.jar:1.0.0-mapr-r1]
> at org.apache.drill.exec.rpc.RpcBus.handle(RpcBus.java:61) [drill-java-exec-1.0.0-mapr-r1-rebuffed.jar:1.0.0-mapr-r1]
> at org.apache.drill.exec.rpc.RpcBus$InboundHandler.decode(RpcBus.java:233) [drill-java-exec-1.0.0-mapr-r1-rebuffed.jar:1.0.0-mapr-r1]
> at org.apache.drill.exec.rpc.RpcBus$InboundHandler.decode(RpcBus.java:205) [drill-java-exec-1.0.0-mapr-r1-rebuffed.jar:1.0.0-mapr-r1]
> at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:89) [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.handler.timeout.ReadTimeoutHandler.channelRead(ReadTimeoutHandler.java:150) [netty-handler-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.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:103) [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.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:242) [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:744) [na:1.7.0_45]
> {code}
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