Re: tokens and RF for multiple phases of deployment

2012-06-01 Thread Chong Zhang
I followed the doc to add the new node. After the nodetool repair, the 'Load' on the new node in DC2 increased to 250M. But the 'Owns' col are still 50%, 50%, 0%, and I guess it's OK because the new token value is 1? Thanks, Chong On Thu, May 31, 2012 at 9:52 PM, aaron morton

Re: tokens and RF for multiple phases of deployment

2012-05-31 Thread aaron morton
Could you provide some guide on how to assign the tokens in this growing deployment phases? background http://www.datastax.com/docs/1.0/install/cluster_init#calculating-tokens-for-a-multi-data-center-cluster Start with tokens for a 4 node cluster. Add the next 4 between between each of

Re: tokens and RF for multiple phases of deployment

2012-05-31 Thread Chong Zhang
Thanks Aaron. I might use LOCAL_QUORUM to avoid the waiting on the ack from DC2. Another question, after I setup a new node with token +1 in a new DC, and updated a CF with RF {DC1:2, DC2:1}. When i update a column on one node in DC1, it's also updated in the new node in DC2. But all the other

Re: tokens and RF for multiple phases of deployment

2012-05-31 Thread aaron morton
The ring (2 in DC1, 1 in DC2) looks OK, but the load on the new node in DC2 is almost 0%. yeah, thats the way it will look. But all the other rows are not in the new node. Do I need to copy the data files from a node in DC1 to the new node? How did you add the node ? (see

tokens and RF for multiple phases of deployment

2012-05-30 Thread Chong Zhang
Hi all, We are planning to deploy a small cluster with 4 nodes in one DC first, and will expend that to 8 nodes, then add another DC with 8 nodes for fail over (not active-active), so all the traffic will go to the 1st cluster, and switch to 2nd cluster if the whole 1st cluster is down or on