Re: cluster size, several cluster on one node for multi-tenancy

2011-02-18 Thread Mimi Aluminium
Nick, Assuming I have a tenant that has only one CF, and I am using NetworkAware repliaction strategy where the keys of this CF are replicated 3 times, each copy in a different DC (DC1,DC2,DC3) Now lets assume the cluster holds 5 DCs. As far as I understand only the servers that belong to the thre

Re: cluster size, several cluster on one node for multi-tenancy

2011-02-18 Thread Mimi Aluminium
Thanks a lot for you suggestions, I will check the virtual keyspace solution - btw, currently I am using Thrift client with Pycassa, I am not familiar with Hector - does it mean we'll need to move to Hector client? I thought of using keyspaces for each tenant, but I dont understand how to define t

Re: cluster size, several cluster on one node for multi-tenancy

2011-02-17 Thread Nate McCall
Hector's virtual keyspaces would work well for what you describe. Ed Anuff, who added this feature to Hector, showed me a working multi-tennancy based app the other day and it worked quite well. On Thu, Feb 17, 2011 at 1:44 PM, Norman Maurer wrote: > Maybe you could make use of "Virtual Keyspaces

Re: cluster size, several cluster on one node for multi-tenancy

2011-02-17 Thread Norman Maurer
Maybe you could make use of "Virtual Keyspaces". See this wiki for the idea: https://github.com/rantav/hector/wiki/Virtual-Keyspaces Bye, Norman 2011/2/17 Frank LoVecchio : > Why not just create some sort of ACL on the client side and use one > Keyspace?  It's a lot less management. > > On Thu,

Re: cluster size, several cluster on one node for multi-tenancy

2011-02-17 Thread Frank LoVecchio
Why not just create some sort of ACL on the client side and use one Keyspace? It's a lot less management. On Thu, Feb 17, 2011 at 12:34 PM, Mimi Aluminium wrote: > Hi, > I really need your help in this matter. > I will try to simplify my problem and ask specific questions > > I am thinking of so

Re: cluster size, several cluster on one node for multi-tenancy

2011-02-17 Thread Mimi Aluminium
Hi, I really need your help in this matter. I will try to simplify my problem and ask specific questions I am thinking of solving the multi-tenancy problem by providing a separate cluster per each tenant. Does it sound reasonable? I can end-up with one node belongs to several clusters. Does Cassan

cluster size, several cluster on one node for multi-tenancy

2011-02-16 Thread Mimi Aluminium
Hi, We are interested in a multi-tenancy environment, that may consist of up to hundreds of data centers. The current design requires cross rack and cross DC replication. Specifically, the per-tenant CFs will be replicated 6 times: in three racks, with 2 copies inside a rack, the racks will be loc