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From Josh Elser <josh.el...@gmail.com>
Subject Re: Failed to get monitor lock org.apache.zookeeper.KeeperException$NoAuthException:
Date Sat, 06 Jun 2015 04:32:34 GMT
Rukshan,

Double check when you start the Monitor that you have the MAC's 
accumulo-site.xml on the classpath. If you still see the ZooKeeper 
exception, please provide a stacktrace and some more information on what 
you've changed.

Rukshan Chathuranga wrote:
> hi,
>
> I run amc as separate application and try to write monitoring app
> separately. For that i used the Monitor class with some changes.
> I need to run them separately and get the statistics data using Monitor
> class.
>
> Thanks and Regards.
>
>
> /Rukshan Chathuranga./
> /Department Of Computer Science & Engineering,
> /
> /Faculty Of Engineering,
> /
> /University Of Moratuwa. //Sri Lanka./
> /WEB: http://www.rukspot.com/ <http://rukspot.com/>
> /
>
>
> On Fri, Jun 5, 2015 at 10:51 PM, Josh Elser <josh.elser@gmail.com
> <mailto:josh.elser@gmail.com>> wrote:
>
>     Hi Rukshan,
>
>     How did you start the Monitor?
>
>     The MiniAccumuloCluster is actually a thin wrapper around
>     MiniAccumuloClusterImpl (in recent versions). If you cast to
>     MiniAccumuloClusterImpl, you should be able to use the exec method
>     to start the Monitor for you which will do the proper classpath
>     setup for you.
>
>          ((MiniAccumuloClusterImpl) mac).exec(Monitor.class);
>
>     The authentication failure is commonly due to a security measure we
>     have in place to ensure that rogue services cannot start
>     participating in an Accumulo cluster. The value of `instance.secret`
>     in accumulo-site.xml is used to control the ACL in ZooKeeper used to
>     write to certain znodes (such as those used for service discovery).
>     If you see a NoAuthException, it's likely that the service you
>     started found the wrong accumulo-site.xml (or didn't find it at all).
>
>     - Josh
>
>     Rukshan Chathuranga wrote:
>
>         Hi,
>
>         i am try to get the Accumulo statistics using
>         Monitor(org.apache.accumulo.monitor.Monitor) class. But when i
>         try it i
>         got the exception as below.
>         Do you have any idea to fix this.
>
>         Note that i am running accumulo as mini cluster.
>
>         2015-06-05 21:27:58,052 [monitor.Monitor] WARN : Failed to get
>         monitor
>         lock org.apache.zookeeper.KeeperException$NoAuthException:
>
>
>         /Rukshan Chathuranga./
>         /Department Of Computer Science & Engineering,
>         /
>         /Faculty Of Engineering,
>         /
>         /University Of Moratuwa. //Sri Lanka./
>         /WEB: http://www.rukspot.com/ <http://rukspot.com/>
>         /
>
>

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