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From Bharath Vissapragada <bhara...@cloudera.com>
Subject Re: zookeeper.znode.parent mismatch exception
Date Fri, 13 Dec 2013 07:40:52 GMT
Can you check if your ZK servers are actually forming a quorum or if they
are just stand alone instances? If they don't form a quorum, znodes are
just created on which ever zk server the master first connects to and the
apps/RS connecting to other instances don't see the znode and thus raising
this error.


On Fri, Dec 13, 2013 at 1:03 PM, Sandeep L <sandeepvreddy@outlook.com>wrote:

> No, we didn't upgraded. We are using HBase-0.94.1
> The issue here is we are not always facing this issue, only once in a
> while we are facing this issue(2 or 3 times a day).Other times it working
> without any issue.
>
> Thanks,Sandeep.
>
> > Date: Thu, 12 Dec 2013 23:23:18 -0800
> > Subject: Re: zookeeper.znode.parent mismatch exception
> > From: pradeepg26@gmail.com
> > To: user@hbase.apache.org
> >
> > Did you recently upgrade to 0.96? This is a problem I faced with
> mismatched
> > clients connecting to an 0.96 cluster. Starting in that version, the root
> > node for zookeeper chanced from /hbase to /hbase-unsecure (if in unsecure
> > mode).
> >
> >
> > On Thu, Dec 12, 2013 at 10:47 PM, Sandeep L <sandeepvreddy@outlook.com
> >wrote:
> >
> > > Hi,
> > > Our production cluster is in distributed mode with 5 servers as
> zookeeper
> > > quorum.
> > > While accessing production HBase server from our application we are
> > > getting zookeeper.znode.parent mismatch exception.
> > > Following is exception in our log files:
> > > from org.apache.hadoop.hbase.zookeeper.ZooKeeperNodeTracker in
> > > pool-67467-thread-1Check the value configured in
> 'zookeeper.znode.parent'.
> > > There could be a mismatch with the one configured in the master.
> > >
> > > We checked all hbase-site.xml files to find any mismatches in
> > > configurations, but no luck all configuration files same. We don't
> have any
> > > configuration with name zookeeper.znode.parent in hbase-site.xml, but I
> > > have one configuration with same name in hbase-defalut.xml with value
> as
> > > /hbase.
> > > In our application server we don't have any file with name
> > > hbase-default.xml, but we have hbase-site.xml in it.
> > >
> > > Can someone help us to resolve this issue.
> > >
> > > Thanks,Sandeep.
>
>



-- 
Bharath Vissapragada
<http://www.cloudera.com>

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