Re: Fwd: information on cassandra
Thank you Maki, wasn't aware of that. 2012/3/27 Maki Watanabe watanabe.m...@gmail.com auto_bootstrap has been removed from cassandra.yaml and always enabled since 1.0. fyi. maki 2012/3/26 R. Verlangen ro...@us2.nl: 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 -- With kind regards, Robin Verlangen www.robinverlangen.nl
Re: Fwd: information on cassandra
auto_bootstrap has been removed from cassandra.yaml and always enabled since 1.0. fyi. maki 2012/3/26 R. Verlangen ro...@us2.nl: 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
Re: Fwd: information on cassandra
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.comwrote: 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
Re: Fwd: information on cassandra
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
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
Re: Fwd: information on cassandra
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 therewhile setting up a cassandra cluster.Garvita MehtaCEG - Open Source Technology GroupTata Consultancy ServicesPh:- +91 22 67324756Mailto: garvita.me...@tcs.comWebsite: http://www.tcs.comExperience certainty. IT ServicesBusiness SolutionsOutsourcing-puneet loya <puneetl...@gmail.com>wrote: - To: user@cassandra.apache.orgFrom: puneet loya puneetl...@gmail.comDate: 03/24/2012 06:36PMSubject: 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
