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From "Yair Even-Zohar" <ya...@audiencescience.com>
Subject RE: [Katta-developer] problem running Hbase & Katta together on EC2
Date Tue, 01 Sep 2009 18:20:17 GMT
How do I configure katta to allow external connections?


My EC2 security group allows all zk ports 2181, 2888, 3888

I'm running katta and hbase on the same macines. Master Hbase with
Master katta, Slave Hbase (regionservers) with slave katta

When I execute the command you have suggested, I get a reply on the
server port but not on the client port on both the master and slaves.

Notice however that the katta "slaves" can communicate with the master
(I see this using katta listNodes command) 


[root@domU-12-31-39-07-51-C3 conf]#  echo stat | nc
domU-12-31-39-07-50-01.compute-1.internal 2888

Zookeeper version: 3.1.1-755636, built on 03/18/2009 16:52 GMT







Latency min/avg/max: 0/0/12

Received: 192

Sent: 194

Outstanding: 0

Zxid: 0x14

Mode: standalone

Node count: 15



From: Ted Dunning [mailto:ted.dunning@gmail.com] 
Sent: Tuesday, September 01, 2009 7:18 PM
To: katta-developer@lists.sourceforge.net
Cc: hbase-user@hadoop.apache.org
Subject: Re: [Katta-developer] problem running Hbase & Katta together on


It looks like hbase is looking at the wrong port, wrong host or like
katta is not configured to allow external connections.

I don't think that this is a bug as much as an error in configuration.
Make sure that you can talk to ZK from every place that needs it (as in,
every hbase host).  Use the
     echo stat | nc $zk_host $zk_port

trick to find out if you can reach zookeeper.

On Tue, Sep 1, 2009 at 3:37 AM, Yair Even-Zohar
<yaire@audiencescience.com> wrote:

However, when running katta (which is based on internal zookeeper
management) I'm getting some zookeeper errors from Hbase (below):


Looking at the errors, it seems that hbase is not familiar with Katta's
zookeeper so I tried to use the same zookeeper jar but got the same

I found hbase -1311 and 1315 that are related but that's supposed to be

Ted Dunning, CTO

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