Re: AddContractPoint /VIP
Thank you. -Chandra On Wed, Dec 11, 2013 at 9:06 PM, Aaron Morton aa...@thelastpickle.comwrote: What is the good practice to put in the code as addContactPoint ie.,how many servers ? I use the same nodes as the seed list nodes for that DC. The idea of the seed list is that it’s a list of well known nodes, and it’s easier operationally to say we have one list of well known nodes that is used by the servers and the clients. 1) I am also thinking to put this way here I am not sure this good or bad if i conigure 4 serves into one VIP ( virtual IP/virtual DNS) and specifying that DSN in the code as ContactPoint, so that that VIP is smart enough to route to different nodes. Too complicated. 2) Is that problem if i use multiple Data centers in future ? You only need to give the client the local seeds, it will discover all the nodes. Cheers - Aaron Morton New Zealand @aaronmorton Co-Founder Principal Consultant Apache Cassandra Consulting http://www.thelastpickle.com On 7/12/2013, at 7:12 am, chandra Varahala hadoopandcassan...@gmail.com wrote: Greetings, I have 4 node cassandra cluster that will grow upt to 10 nodes,we are using CQL Java client to access the data. What is the good practice to put in the code as addContactPoint ie.,how many servers ? 1) I am also thinking to put this way here I am not sure this good or bad if i conigure 4 serves into one VIP ( virtual IP/virtual DNS) and specifying that DSN in the code as ContactPoint, so that that VIP is smart enough to route to different nodes. 2) Is that problem if i use multiple Data centers in future ? thanks Chandra
Re: AddContractPoint /VIP
What is the good practice to put in the code as addContactPoint ie.,how many servers ? I use the same nodes as the seed list nodes for that DC. The idea of the seed list is that it’s a list of well known nodes, and it’s easier operationally to say we have one list of well known nodes that is used by the servers and the clients. 1) I am also thinking to put this way here I am not sure this good or bad if i conigure 4 serves into one VIP ( virtual IP/virtual DNS) and specifying that DSN in the code as ContactPoint, so that that VIP is smart enough to route to different nodes. Too complicated. 2) Is that problem if i use multiple Data centers in future ? You only need to give the client the local seeds, it will discover all the nodes. Cheers - Aaron Morton New Zealand @aaronmorton Co-Founder Principal Consultant Apache Cassandra Consulting http://www.thelastpickle.com On 7/12/2013, at 7:12 am, chandra Varahala hadoopandcassan...@gmail.com wrote: Greetings, I have 4 node cassandra cluster that will grow upt to 10 nodes,we are using CQL Java client to access the data. What is the good practice to put in the code as addContactPoint ie.,how many servers ? 1) I am also thinking to put this way here I am not sure this good or bad if i conigure 4 serves into one VIP ( virtual IP/virtual DNS) and specifying that DSN in the code as ContactPoint, so that that VIP is smart enough to route to different nodes. 2) Is that problem if i use multiple Data centers in future ? thanks Chandra
AddContractPoint /VIP
Greetings, I have 4 node cassandra cluster that will grow upt to 10 nodes,we are using CQL Java client to access the data. What is the good practice to put in the code as addContactPoint ie.,how many servers ? 1) I am also thinking to put this way here I am not sure this good or bad if i conigure 4 serves into one VIP ( virtual IP/virtual DNS) and specifying that DSN in the code as ContactPoint, so that that VIP is smart enough to route to different nodes. 2) Is that problem if i use multiple Data centers in future ? thanks Chandra
