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From Mohammad Tariq <donta...@gmail.com>
Subject Re: HBase Support
Date Fri, 10 May 2013 10:44:08 GMT
Hello Raju,

      This means that there is some problem with the connection between
HMaster and ZK. Make sure all your Hbase daemons are running fine. Which
version are you using?Also showing complete HMaster and ZK logs would be
helpful.

Warm Regards,
Tariq
cloudfront.blogspot.com


On Fri, May 10, 2013 at 11:54 AM, naga raju <rajumuddana@gmail.com> wrote:

> ya I have checked Logs ,in those logs i found ..
>
>
> WARN client.ZooKeeperSaslClient: SecurityException:
> java.lang.SecurityException: Unable to locate a login configuration
> occurred when trying to find JAAS configuration.
>
> lient.ZooKeeperSaslClient: Client will not SASL-authenticate because the
> default JAAS configuration section 'Client' could not be found. If you are
> not using SASL, you may ignore this. On the other hand, if you expected
> SASL to work, please fix your JAAS configuration.
>
> WARN zookeeper.ClientCnxn: Session 0x0 for server null, unexpected error,
> closing socket connection and attempting reconnect
> java.net.ConnectException: Connection refused
>     at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
>     at
> sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:574)
>     at
>
> org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:286)
>     at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1035)
>
> WARN zookeeper.RecoverableZooKeeper: Possibly transient ZooKeeper
> exception: org.apache.zookeeper.KeeperException$ConnectionLossException:
> KeeperErrorCode = ConnectionLoss for /hbase/master
>
> What this means?
>
> Thanks & Regards.
> Raju.
>
>
> On Fri, May 10, 2013 at 11:37 AM, Amandeep Khurana <amansk@gmail.com>
> wrote:
>
> > Look at your HBase logs. They will be in the $HBASE_HOME/logs directory.
> > That might give some insight into what's going on.
> >
> >
> > On Thu, May 9, 2013 at 10:42 PM, naga raju <rajumuddana@gmail.com>
> wrote:
> >
> > > Thanks for your Guidance  Amandeep,
> > >
> > > I can re-start my application and which logs i have to check.
> > >
> > > Thank & Regards
> > > Raju.
> > >
> > >
> > > On Fri, May 10, 2013 at 11:07 AM, Amandeep Khurana <amansk@gmail.com>
> > > wrote:
> > >
> > > > Can you tell what the logs are saying? Did you try to restart your
> > > > application?
> > > >
> > > >
> > > > On Thu, May 9, 2013 at 10:36 PM, naga raju <rajumuddana@gmail.com>
> > > wrote:
> > > >
> > > > > Thanks for the Reply Amandeep,
> > > > >
> > > > > I can access the web UI.
> > > > >
> > > > >
> > > > > On Fri, May 10, 2013 at 10:52 AM, Amandeep Khurana <
> amansk@gmail.com
> > >
> > > > > wrote:
> > > > >
> > > > > > What do the HBase logs say? Can you access the web UI?
> > > > > >
> > > > > >
> > > > > > On Thu, May 9, 2013 at 9:57 PM, naga raju <rajumuddana@gmail.com
> >
> > > > wrote:
> > > > > >
> > > > > > > I am running hbase on same(single) system which i am using
to
> > > > > > development.
> > > > > > >
> > > > > > >
> > > > > > > On Fri, May 10, 2013 at 6:19 AM, Amandeep Khurana <
> > > amansk@gmail.com>
> > > > > > > wrote:
> > > > > > >
> > > > > > > > Are you running HBase on your local development box
or on
> some
> > > > server
> > > > > > > > outside and trying to connect to it from your dev
box?
> > > > > > > >
> > > > > > > >
> > > > > > > > On Thu, May 9, 2013 at 6:36 AM, raju <rajumuddana@gmail.com>
> > > > wrote:
> > > > > > > >
> > > > > > > > > Hi all,
> > > > > > > > >
> > > > > > > > >   I am New to Hbase(Hadoop), and i am working
on hbase with
> > > > > > standalone
> > > > > > > > > mode.My application running well for some time,
after that
> it
> > > > > > displays
> > > > > > > > >
> > > > > > > > > INFO zookeeper.ClientCnxn: Client session timed
out, have
> not
> > > > heard
> > > > > > > from
> > > > > > > > > server in 29946ms for sessionid 0x13e88be25cc0004,
closing
> > > socket
> > > > > > > > > connection
> > > > > > > > > and attempting reconnect
> > > > > > > > > .....
> > > > > > > > > .....
> > > > > > > > >
> > > > > > > > > and continuing this message.Then my application
will not
> > > > > communicate
> > > > > > > with
> > > > > > > > > hbase.
> > > > > > > > >
> > > > > > > > > I have Searched in net,but could not found any
stuff to
> > resolve
> > > > > this
> > > > > > > > > issue.Please guide me.
> > > > > > > > > I want to know...
> > > > > > > > >
> > > > > > > > > 1.what are the causes of  Client session timed
out.(and
> > client
> > > > > > session
> > > > > > > > > scenario)
> > > > > > > > >
> > > > > > > > > 2.How zookeeper and master and client will communicate
in
> > > > > standalone
> > > > > > > mode
> > > > > > > > > as
> > > > > > > > > well as in distributed mode.
> > > > > > > > >
> > > > > > > > > 3.If there are any configurations to modify please
let me
> > know.
> > > > > > > > >
> > > > > > > > > Thanks & Regards.
> > > > > > > > > raju.
> > > > > > > > >
> > > > > > > > >
> > > > > > > >
> > > > > > >
> > > > > >
> > > > >
> > > >
> > >
> >
>

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