No, replicas will always be directed to the same nodes. Otherwise we would not
know where to find it.
The OldNetworkTopologyStrategy alternated replicas between DC's , but it would
still always put them on the same nodes.
Aaron
On 22 Mar 2011, at 05:31, mcasandra wrote:
> I think what I a
I think what I am trying to ask is this:
what happens if it's RF=3 with network toplogy (RackInferringSnitch) and 2
copies are stored in Site A and 1 copy in Site B data center. Now client for
some reason is directed to Site B data center and does a write/update on
existing column, now would Site
I'll take another crack at it, here's how I think it works.
When using the NetworkTopologyStrategy you can specify how the RF is
distributed between the DC's you have. This is done as part of the schema
definition. When using a CLI script use the strategy_options clause of the
create keyspace s
CL is just a way to satisfy consistency but you still want majority of your
reads (preferrably) occurring in the same DC.
I don't think that answers my question at all. I understand the CL but I
think I have more basic and important question about active/active data
center and the replicas in that
The API provides for Quourm CL to be used either across all replicas (ignoring
DC's), the local DC or each DC. See Consistency level here
http://wiki.apache.org/cassandra/API
Hope that helps
Aaron
On 19 Mar 2011, at 06:54, mcasandra wrote:
> When in active/active data center how to decide righ
