last_write_wins

Edgar Veiga edgarmveiga at gmail.com
Wed Jan 29 04:57:15 EST 2014


tl;dr

If I guarantee that the same key is only written with a 5 second interval,
is last_write_wins=true profitable?


On 27 January 2014 23:25, Edgar Veiga <edgarmveiga at gmail.com> wrote:

> Hi there everyone!
>
> I would like to know, if my current application is a good use case to set
> last_write_wins to true.
>
> Basically I have a cluster of node.js workers reading and writing to riak.
> Each node.js worker is responsible for a set of keys, so I can guarantee
> some kind of non distributed cache...
> The real deal here is that the writing operation is not run evertime an
> object is changed but each 5 seconds in a "batch insertion/update" style.
> This brings the guarantee that the same object cannot be write to riak at
> the same time, not event at the same seconds, there's always a 5 second
> window between each insertion/update.
>
> That said, is it profitable to me if I set last_write_wins to true? I've
> been facing some massive writting delays under high loads and it would be
> nice if I have some kind of way to tune riak.
>
> Thanks a lot and keep up the good work!
>
>
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