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From Aaron Morton <>
Subject Re: Async write
Date Sun, 20 Feb 2011 19:36:31 GMT
AFAIK the write across the dc is sync as well. I think there I'd a ticket out there to make
them asnc, take a look at Jira.


On 19/02/2011, at 10:24 AM, Anthony John <> wrote:

> Fact as i understand them:-
> - A write call to db triggers a number of async writes to all nodes where the particular
write should be recorded (and the nodes are up per Gossip and so on)
> - Once desired CL number of writes acknowledge - the call returns
> So your issue is moot. That is what is happening under the covers!
> On Fri, Feb 18, 2011 at 3:08 PM, mcasandra <> wrote:
> So does it mean there is no way to say use sync + async ? I am thinking if I
> have to write accross data center and doing it synchronuosly is going to be
> very slow and will be bad for clients to have to wait. What are my options
> or alternatives?
> Use N=3 and W=2? And the 3rd one (assuming will be async) will be in other
> DC? How do I set it up or possible to setup?
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