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From N Keywal <nkey...@gmail.com>
Subject Re: Problem - Bringing up the HBase cluster
Date Wed, 22 Aug 2012 07:00:15 GMT
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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