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From "Abhishek Girish (JIRA)" <j...@apache.org>
Subject [jira] [Created] (DRILL-1983) Sqlline fails to connect after a previous suspension
Date Mon, 12 Jan 2015 21:01:35 GMT
Abhishek Girish created DRILL-1983:
--------------------------------------

             Summary: Sqlline fails to connect after a previous suspension
                 Key: DRILL-1983
                 URL: https://issues.apache.org/jira/browse/DRILL-1983
             Project: Apache Drill
          Issue Type: Bug
          Components: Client - CLI
            Reporter: Abhishek Girish
            Assignee: Jacques Nadeau
            Priority: Critical


A query failed to return and couldn't be cancelled. Sqlline had to be suspended. After which,
Sqlline fails to connect and goes into a hang state. 

Even after the suspended sqlline processes were killed, initialing a new sqlline failed to
connect. 

The last log snippets have been attached. The following exceptions were logged towards the
end indicating channel closure after encountering a NullPointerException.

2015-01-12 12:26:38,096 [BitServer-5] ERROR o.a.d.exec.rpc.RpcExceptionHandler - Exception
in pipeline.  Closing channel between local /10.10.103.34:31011 and remote /10.10.103.35:44629
io.netty.handler.codec.DecoderException: java.lang.NullPointerException
at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:99)
[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]
        ...
Caused by: java.lang.NullPointerException: null
        at org.apache.drill.exec.work.fragment.FragmentExecutor.receivingFragmentFinished(FragmentExecutor.java:83)
~[drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:0.8.0-SNAPSHOT]
         




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