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From Jothikumar Ekanath <kbmku...@gmail.com>
Subject Re: Problem - Bringing up the HBase cluster
Date Wed, 22 Aug 2012 15:43:46 GMT
Hi,
         Thanks for the response, sorry i put this email in the dev space.
My data replication is 2. and yes the region and master server connectivity
is good

Initially i started with 4 data nodes and 1 master, i faced the same
problem. So i reduced the data nodes to 1 and wanted to test it. I see the
same issue. I haven't tested the pseudo distribution mode, i can test that.
But my objective is to test the full distributed mode and do some testing.
I can send my configuration for review. Please let me know if i am missing
any basic setup configuration.

On Wed, Aug 22, 2012 at 12:00 AM, N Keywal <nkeywal@gmail.com> wrote:

> Hi,
>
> Please use the user mailing list (added at dest) for this type of
> questions instead of the dev list (now in bcc).
>
> It's a little bit strange to use the full distributed mode with a
> single region server. Is the Pseudo-distributed mode working?
> Check the number of datanodes vs. dfs.replication (default 3). If you
> have less datanodes then dfs.replication value, it won't work
> properly.
> Check as well that the region server is connected to the master.
>
> Cheers,
>
>
>
> On Wed, Aug 22, 2012 at 3:16 AM, kbmkumar <kbmkumar@gmail.com> wrote:
> > Hi,
> >       I am trying to bring up a HBase cluster with 1 master and 1 one
> region
> > server. I am using
> > Hadoop 1.0.3
> > Hbase 0.94.1
> >
> > Starting the hdfs was straight forward and i could see the namenode up
> and
> > running successfully. But the problem is with Hbase. I followed all the
> > guidelines given in the Hbase cluster setup (fully distributed mode) and
> ran
> > the start-hbase.sh
> >
> > It started the Master, Region server and zookeeper (in the region
> server) as
> > per my configuration. But i am not sure the master is fully functional.
> When
> > i try to connect hbase shell and create table, it errors out saying
> > PleaseHoldException- Master is initializing
> >
> > In UI HMaster status shows like this *Assigning META region (since
> 18mins,
> > 39sec ago)*
> >
> > and i see the Hmaster logs are flowing with the following debug prints,
> the
> > log file is full of below prints,
> > *
> > 2012-08-22 01:08:19,637 DEBUG
> >
> org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation:
> > Looked up root region location,
> >
> connection=org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation@49586cbd
> ;
> > serverName=hadoop-datanode1,60020,1345596463277
> > 2012-08-22 01:08:19,638 DEBUG
> >
> org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation:
> > Looked up root region location,
> >
> connection=org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation@49586cbd
> ;
> > serverName=hadoop-datanode1,60020,1345596463277
> > 2012-08-22 01:08:19,639 DEBUG
> >
> org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation:
> > Looked up root region location,
> >
> connection=org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation@49586cbd
> ;
> > serverName=hadoop-datanode1,60020,1345596463277*
> >
> > Please help me in debugging this.
> >
> >
> >
> >
> >
> > --
> > View this message in context:
> http://apache-hbase.679495.n3.nabble.com/Problem-Bringing-up-the-HBase-cluster-tp4019948.html
> > Sent from the HBase - Developer mailing list archive at Nabble.com.
>

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