Re: Replicate changes from DC1 to DC2, but not from DC2 to DC1

2011-02-22 Thread Jonathan Ellis
That would cause a lot of subtle breakage, e.g. confusing Repair. 2011/2/22 Héctor Izquierdo Seliva : > El mar, 22-02-2011 a las 08:46 +1300, Aaron Morton escribió: >> Take a look at the NetworkTopologyStrategy and/or the RackInferringSnitch >> together they  decide where to place replicas. It's

Re: Replicate changes from DC1 to DC2, but not from DC2 to DC1

2011-02-21 Thread Héctor Izquierdo Seliva
El mar, 22-02-2011 a las 08:46 +1300, Aaron Morton escribió: > Take a look at the NetworkTopologyStrategy and/or the RackInferringSnitch > together they decide where to place replicas. It's probably not a great idea > to muck around with this stuff though. > > How about a hadoop job to pull out

Re: Replicate changes from DC1 to DC2, but not from DC2 to DC1

2011-02-21 Thread Aaron Morton
Take a look at the NetworkTopologyStrategy and/or the RackInferringSnitch together they decide where to place replicas. It's probably not a great idea to muck around with this stuff though. How about a hadoop job to pull out the data you want? It would be a full scan but in parallel. Aaron O

Replicate changes from DC1 to DC2, but not from DC2 to DC1

2011-02-21 Thread Héctor Izquierdo Seliva
Hi all. Is there a way (besides changing the code) to replicate data from a Data center 1 to a Data center 2, but not the other way around? I need to have a preproduction environment with production data, and ideally with only a fraction of the data (for example, by key preffixes). I have poked a