Re: how large can a cluster over the WAN be?

2011-03-08 Thread Robert Coli
On Mon, Mar 7, 2011 at 11:32 AM, John Lewis lewili...@gmail.com wrote: When you say decent latency and throughput what numbers do you consider decent? I know throughput would be highly dependent on the quantity of kb shoved through the pipe so I would expect throughput needs would be highly

Re: how large can a cluster over the WAN be?

2011-03-08 Thread John Lewis
Thanks for the reply, I realize my question was rather nebulous as I consider this proposed deployment to be rather nebulous as well. Any bit of information and a direction on which sections of documentation are relevant helps this challenge become less nebulous over time. I will do some

Re: how large can a cluster over the WAN be?

2011-03-07 Thread Robert Coli
On Sun, Mar 6, 2011 at 1:39 PM, Mimi Aluminium mimi.alumin...@gmail.com wrote: Are you familiar with Cassandra cluster that is installed in datacenters that are spread across the WAN? can you comment on the perfromance of such installation? What is the largest size of of such a cluster you are

Re: how large can a cluster over the WAN be?

2011-03-07 Thread John Lewis
When you say decent latency and throughput what numbers do you consider decent? I know throughput would be highly dependent on the quantity of kb shoved through the pipe so I would expect throughput needs would be highly dependent on the data actually in cassandra. Thanks for the info, I am

Re: how large can a cluster over the WAN be?

2011-03-06 Thread Mimi Aluminium
Hi, Please, can you help with the following? it will lead us in some design decisions. Are you familiar with Cassandra cluster that is installed in datacenters that are spread across the WAN? can you comment on the perfromance of such installation? What is the largest size of of such a cluster

how large can a cluster over the WAN be?

2011-03-01 Thread Mimi Aluminium
Hi, Are there clusters of 100 nodes? more? Please can you refer me to such installations/ systems? Can you comment on over-the-WAN clusters in this size or less? and can you point on system with nodes in different DCs connected by WAN ( could be dedicated or internet) ? Thanks a lot, Miriam