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From Ali Ahsan <>
Subject Re: Cassandra node's replication factor two with random partition non Bootstrap node problem
Date Wed, 13 Apr 2011 12:30:05 GMT
This solved we are doing some thing wrong in our application thanks for 
your help.

On 04/13/2011 01:43 AM, Peter Schuller wrote:
>> I have two cassandra node's,If Boot strapped  nodes goes down my service
>> remains alive,But if my non Bootstrap (master) node goes down my live site
>> goes down as well,I am using cassandra 0.6.3 can any elaborate on this
>> problem.
> Assuming your RF is 2 (not 1), and that you are reading at consistency
> level ONE (not QUORUM, which would be 2 in the case of RF=2),
> single-node failures should be tolerated.
> In order for people to help you'd have to specify some more
> informaton. For example, your "site goes down" - but what is the
> actual error condition w.r.t. Cassandra? What is the error reported by
> the Cassandra client (and which client is it)?
> I'm not sure what you mean w.r.t. boostrap/master etc. All nodes
> should be entirely equal, with the exception of nodes that are marked
> as seed nodes. But seed nodes going down should not cause reads and
> writes to fail.

S.Ali Ahsan

Senior System Engineer

e-Business (Pvt) Ltd

49-C Jail Road, Lahore, P.O. Box 676
Lahore 54000, Pakistan

Tel: +92 (0)42 3758 7140 Ext. 128

Mobile: +92 (0)345 831 8769

Fax: +92 (0)42 3758 0027


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