Yes, you can add nodes to a running "cluster". It's very simple: configure the cluster name and seed node(s) in cassandra.yaml, set auto_bootstrap to true and start the node.
2012/3/26 puneet loya <puneetl...@gmail.com> > 5n.. consider i m starting on a single node. can I add nodes later?? plz > reply :) > > > On Sun, Mar 25, 2012 at 7:41 PM, 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 >>>> >>>> >>> >> > -- With kind regards, Robin Verlangen www.robinverlangen.nl
