For the second instance you need to set "kylin.server.mode=query" in
kylin.properties.  By default the value is "all" which means the instance
play as both query engine and build engine.  However only one build engine
is allowed within a kylin cluster.

We need to document this some where...

On Wed, Apr 29, 2015 at 9:27 AM, dong wang <[email protected]> wrote:

> Hi luke, do u mean that we must create multiple kylin instances in
> DIFFERENT machines of a cluster?  currently, I am trying to create 2 kylin
> instances in a pseudo CDH environment on one machine for testing purpose
> first~
>
> 2015-04-28 20:18 GMT+08:00 Luke Han <[email protected]>:
>
> > looks like your 2nd instance talking to localhost zookeeper:
> >
> > Opening socket connection to server localhost/
> > 127.0.0.1:2181. Will not attempt to authenticate using SASL (unknown er
> > ror)
> >
> > could you double check for the host information?
> >
> >
> > Best Regards!
> > ---------------------
> >
> > Luke Han
> >
> > 2015-04-28 16:11 GMT+08:00 dong wang <[email protected]>:
> >
> > > First, I changed all the ports that appear in the tomcat/server.xml to
> > > avoid conflicts
> > > Second, changed kylin.rest.servers to the same as that of the tomcat
> for
> > > this instance in conf/kylin.properties
> > >
> > > however, when starting the 2nd tomcat instance, it throws error
> > information
> > > as below:
> > >
> > > [Thread-9]:[2015-04-28
> > >
> > >
> >
> 15:44:34,366][INFO][org.apache.zookeeper.ZooKeeper.<init>(ZooKeeper.java:438)]
> > > - Initiating client connection, c
> > > onnectString=localhost:2181 sessionTimeout=60000
> > > watcher=org.apache.curator.ConnectionState@68702fc0
> > > [Thread-9-SendThread(localhost:2181)]:[2015-04-28
> > >
> > >
> >
> 15:44:34,405][INFO][org.apache.zookeeper.ClientCnxn$SendThread.logStartConnect(Client
> > > Cnxn.java:975)] - Opening socket connection to server localhost/
> > > 127.0.0.1:2181. Will not attempt to authenticate using SASL (unknown
> er
> > > ror)
> > > [Thread-9-SendThread(localhost:2181)]:[2015-04-28
> > >
> > >
> >
> 15:44:34,409][INFO][org.apache.zookeeper.ClientCnxn$SendThread.primeConnection(Client
> > > Cnxn.java:852)] - Socket connection established to localhost/
> > > 127.0.0.1:2181,
> > > initiating session
> > > [Thread-9-SendThread(localhost:2181)]:[2015-04-28
> > >
> > >
> >
> 15:44:34,423][INFO][org.apache.zookeeper.ClientCnxn$SendThread.onConnected(ClientCnxn
> > > .java:1235)] - Session establishment complete on server localhost/
> > > 127.0.0.1:2181, sessionid = 0x14cf8ec32bb0081, negotiated timeout = 4
> > > 0000
> > > [Thread-9-EventThread]:[2015-04-28
> > >
> > >
> >
> 15:44:34,441][INFO][org.apache.curator.framework.state.ConnectionStateManager.postState(ConnectionSt
> > > ateManager.java:228)] - State change: CONNECTED
> > > [Thread-9]:[2015-04-28
> > >
> > >
> >
> 15:44:37,451][WARN][org.apache.kylin.job.impl.threadpool.DefaultScheduler.init(DefaultScheduler.java:205)]
> > > - fai
> > > l to acquire lock, scheduler has not been started
> > > [Thread-9]:[2015-04-28
> > >
> > >
> >
> 15:44:37,456][INFO][org.apache.zookeeper.ZooKeeper.close(ZooKeeper.java:684)]
> > > - Session: 0x14cf8ec32bb0081 close
> > > d
> > > [Thread-9-EventThread]:[2015-04-28
> > >
> > >
> >
> 15:44:37,456][INFO][org.apache.zookeeper.ClientCnxn$EventThread.run(ClientCnxn.java:512)]
> > > - EventThr
> > > ead shut down
> > > [Thread-9]:[2015-04-28
> > >
> > >
> >
> 15:44:37,459][ERROR][org.apache.kylin.rest.controller.JobController$1.run(JobController.java:87)]
> > > - scheduler ha
> > > s not been started
> > >
> >
>

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