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Date: Mon, 1 Dec 2014 21:20:13 +0000 (UTC)
From: "Abhishek Girish (JIRA)" <jira@apache.org>
To: dev@drill.apache.org
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Subject: [jira] [Created] (DRILL-1797) Drillbit.sh fails to stop Drillbit
 processes
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Abhishek Girish created DRILL-1797:
--------------------------------------

             Summary: Drillbit.sh fails to stop Drillbit processes
                 Key: DRILL-1797
                 URL: https://issues.apache.org/jira/browse/DRILL-1797
             Project: Apache Drill
          Issue Type: Bug
          Components: Tools, Build & Test
            Reporter: Abhishek Girish
            Assignee: Jacques Nadeau


The drillbit.sh script which on stop does a kill -0 on the drillbit PID fails to stop the process. The processes need to be manually killed with a kill -9 and then restarted. 

The following messages are seen:

_no drillbit to stop because kill -0 of pid <PID> failed with status 1_

Drillbit.out indicates an error with permission of the drillbit.pid file and also gives conflicting errors indicating the drillbit process is already shutdown but the address is still in use:

<snippet of drillbit.out file after the command "drillbit.sh restart" followed by a second "drillbit.sh stop" after a delay of few minutes>
 
/opt/mapr/drill/drill-0.6.0/bin/drillbit.sh: line 188: /opt/mapr/drill/drill-0.6.0/drillbit.pid: Permission denied
Exception in thread "main" org.apache.drill.exec.exception.DrillbitStartupException: Failure during initial startup of Drillbit.
        at org.apache.drill.exec.server.Drillbit.start(Drillbit.java:73)
        at org.apache.drill.exec.server.Drillbit.start(Drillbit.java:57)
        at org.apache.drill.exec.server.Drillbit.main(Drillbit.java:80)
Caused by: org.apache.drill.exec.exception.DrillbitStartupException: Could not bind Drillbit
        at org.apache.drill.exec.rpc.BasicServer.bind(BasicServer.java:158)
        at org.apache.drill.exec.service.ServiceEngine.start(ServiceEngine.java:61)
        at org.apache.drill.exec.server.Drillbit.run(Drillbit.java:145)
        at org.apache.drill.exec.server.Drillbit.start(Drillbit.java:70)
        ... 2 more
Caused by: java.net.BindException: Address already in use
        at sun.nio.ch.Net.bind0(Native Method)
        at sun.nio.ch.Net.bind(Net.java:444)
        at sun.nio.ch.Net.bind(Net.java:436)
        at sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:214)
        at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:74)
        at io.netty.channel.socket.nio.NioServerSocketChannel.doBind(NioServerSocketChannel.java:125)
        at io.netty.channel.AbstractChannel$AbstractUnsafe.bind(AbstractChannel.java:478)
        at io.netty.channel.DefaultChannelPipeline$HeadContext.bind(DefaultChannelPipeline.java:1021)
        at io.netty.channel.AbstractChannelHandlerContext.invokeBind(AbstractChannelHandlerContext.java:455)
        at io.netty.channel.AbstractChannelHandlerContext.bind(AbstractChannelHandlerContext.java:440)
        at io.netty.channel.DefaultChannelPipeline.bind(DefaultChannelPipeline.java:844)
        at io.netty.channel.AbstractChannel.bind(AbstractChannel.java:197)
        at io.netty.bootstrap.AbstractBootstrap$2.run(AbstractBootstrap.java:350)
        at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:380)
        at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:357)
        at io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:116)
        at java.lang.Thread.run(Thread.java:745)
Exception in thread "ShutdownHook" java.lang.IllegalStateException: Already closed or has not been started
        at com.google.common.base.Preconditions.checkState(Preconditions.java:149)
        at org.apache.curator.x.discovery.details.ServiceCacheImpl.close(ServiceCacheImpl.java:91)
        at org.apache.drill.exec.coord.zk.ZKClusterCoordinator.close(ZKClusterCoordinator.java:159)
        at com.google.common.io.Closeables.close(Closeables.java:77)
        at com.google.common.io.Closeables.closeQuietly(Closeables.java:108)
        at org.apache.drill.exec.server.Drillbit.close(Drillbit.java:172)
        at org.apache.drill.exec.server.Drillbit$ShutdownThread.run(Drillbit.java:186)





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