cassandra-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From William Oberman <>
Subject Re: Strong Consistency with ONE read/writes
Date Sat, 02 Jul 2011 12:03:55 GMT
Ok, I see the "you happen to choose the 'right' node" idea, but it sounds
like you want to solve "C* problems" in the client, and they already wrote
that complicated code to make clients simple.   You're talking about
reimplementing key<->node mappings, network topology (with failures), etc...
 Plus, if they change something about replication and you get too tricky,
your code breaks.  Or, if they optimize something, you might not benefit.

On Jul 1, 2011, at 10:33 PM, AJ <> wrote:

I'm saying I will make my clients forward the C* requests to the first
replica instead of forwarding to a random node.
Sent from my Android phone with K-9 Mail. Please excuse my brevity.

Will Oberman <> wrote:
> Sent from my iPhone
> On Jul 1, 2011, at 9:53 PM, AJ <> wrote:
> > Is this possible?
> >
> > All reads and writes for a given key will always go to the same node
> > from a client.
> I don't think that's true. Given a key K, the client will write to N
> nodes (N=replication factor). And at consistency level ONE the client
> will return after 1 "ack" (from the N writes).

View raw message