It is fine to start with one or two nodes. An important caveat is operations at QUORUM actually turn into ALL because QUORUM can not be done with 2 nodes. The operations will still work but the failure path is different.
On Sun, Mar 25, 2012 at 10:11 AM, Ertio Lew <ertio...@gmail.com> wrote: > I guess 2 node cluster with RF=2 might also be a starting point. Isn't it ? > Are there any issues with this ? > > On Sun, Mar 25, 2012 at 12:20 AM, samal <samalgo...@gmail.com> wrote: >> >> Cassandra has distributed architecture. So 1 node does not fit into it. >> although it can used but you loose its benefits , ok if you are just playing >> around, use vm to learn how cluster communicate, handle request. >> >> To get full tolerance, redundancy and consistency minimum 3 node is >> required. >> >> Imp read here: >> http://wiki.apache.org/cassandra/ >> http://www.datastax.com/docs/1.0/index >> http://thelastpickle.com/ >> http://www.acunu.com/blogs/all/ >> >> >> >> On Sat, Mar 24, 2012 at 11:37 PM, Garvita Mehta <garvita.me...@tcs.com> >> wrote: >>> >>> its not advisable to use cassandra on single node, as its basic >>> definition says if a node fails, data still remains in the system, atleast 3 >>> nodes must be there while setting up a cassandra cluster. >>> >>> >>> Garvita Mehta >>> CEG - Open Source Technology Group >>> Tata Consultancy Services >>> Ph:- +91 22 67324756 >>> Mailto: garvita.me...@tcs.com >>> Website: http://www.tcs.com >>> ____________________________________________ >>> Experience certainty. IT Services >>> Business Solutions >>> Outsourcing >>> ____________________________________________ >>> >>> -----puneet loya wrote: ----- >>> >>> To: user@cassandra.apache.org >>> From: puneet loya <puneetl...@gmail.com> >>> Date: 03/24/2012 06:36PM >>> Subject: Fwd: information on cassandra >>> >>> >>> >>> >>> hi, >>> >>> I m puneet, an engineering student. I would like to know that, is >>> cassandra useful considering we just have a single node(rather a single >>> system) having all the information. >>> I m looking for decent response time for the database. can you please >>> respond? >>> >>> Thank you , >>> >>> Regards, >>> >>> Puneet Loya >>> >>> =====-----=====-----===== >>> Notice: The information contained in this e-mail >>> message and/or attachments to it may contain >>> confidential or privileged information. If you are >>> not the intended recipient, any dissemination, use, >>> review, distribution, printing or copying of the >>> information contained in this e-mail message >>> and/or attachments to it are strictly prohibited. If >>> you have received this communication in error, >>> please notify us by reply e-mail or telephone and >>> immediately and permanently delete the message >>> and any attachments. Thank you >> >> >
