Re: Make an existing cluster multi data-center compatible.

2014-08-05 Thread Rameez Thonnakkal
I think the RAC placement of these 12 nodes will become important. As the 12 nodes are placed in SimpleSnitch, which is not RAC aware, it would be good to retain them in single RAC in the property file snitch also initially. node repair is a safe option. If you need to change the RAC placement, my

Re: How to perform Range Queries in Cassandra

2014-07-05 Thread Rameez Thonnakkal
Won't the performeance improve significantly if you increase the number of nodes even in a commodity hardware profile. On 5 Jul 2014 01:38, "Jens Rantil" wrote: > Hi Mike, > > To learn get subsecond performance on your queries using _any_ database > you need to use proper indexing. Like Jeremy sa

Re: Disable vnode

2014-07-04 Thread Rameez Thonnakkal
assandra/operations/ops_add_dc_to_cluster_t.html?scroll=task_ds_hmp_54q_gk__task_ds_hmp_54q_gk_unique_1 >> >> >> >> Mark >> >> >> >> On Fri, Jul 4, 2014 at 2:43 PM, Rameez Thonnakkal >> wrote: >> >>> hello Team, >>>

Re: Disable vnode

2014-07-04 Thread Rameez Thonnakkal
luster. > > You can find some more details about adding a data center to your cluster > here: > http://datastax.com/documentation/cassandra/2.0/cassandra/operations/ops_add_dc_to_cluster_t.html?scroll=task_ds_hmp_54q_gk__task_ds_hmp_54q_gk_unique_1 > > > > Mark > >

Disable vnode

2014-07-04 Thread Rameez Thonnakkal
hello Team, I am looking for standard operating procedure to disable vnode in a production cluster. This is to enable solr which doesn't work with a cassandra cluster having vnode enabled. Any suggestions/ Thanks, Rameez

Re: Multi-DC Repairs and Token Questions

2014-05-28 Thread Rameez Thonnakkal
as Chovatia mentioned, the keyspaces seems to be different. try "Describe keyspace SN_KEYSPACE" and "describe keyspace MY_KEYSPACE" from CQL. This will give you an idea about how many replicas are there for these keyspaces. On Wed, May 28, 2014 at 11:49 AM, chovatia jaydeep < chovatia_jayd...@ya

Re: ownership not equally distributed

2014-05-21 Thread Rameez Thonnakkal
This issue is resolved. Don't know the exact root cause though. Did a re-image of the server which was taking less token ownership and done the configuration through chef. Thanks, Rameez On Sat, May 17, 2014 at 1:06 AM, Rameez Thonnakkal wrote: > Hello > > I am having a 4 node c

ownership not equally distributed

2014-05-16 Thread Rameez Thonnakkal
Hello I am having a 4 node cluster where 2 nodes are in one data center and another 2 in a different one. But in the first data center the token ownership is not equally distributed. I am using vnode feature. num_tokens is set to 256 in all nodes. initial_number is left blank. Datacenter: DC1 =