RE: cost estimate about some Cassandra patchs

2013-05-07 Thread DE VITO Dominique
> -Message d'origine- > De : aaron morton [mailto:aa...@thelastpickle.com] > Envoyé : mardi 7 mai 2013 10:22 > À : user@cassandra.apache.org > Objet : Re: cost estimate about some Cassandra patchs > > > Use case = rows with rowkey like (folder id, file id)

Re: cost estimate about some Cassandra patchs

2013-05-07 Thread aaron morton
.com On 7/05/2013, at 5:27 AM, DE VITO Dominique wrote: > > De : aaron morton [mailto:aa...@thelastpickle.com] > > Envoyé : dimanche 28 avril 2013 22:54 > > À : user@cassandra.apache.org > > Objet : Re: cost estimate about some Cassandra patchs > > > > >

RE: cost estimate about some Cassandra patchs

2013-05-06 Thread DE VITO Dominique
> De : aaron morton [mailto:aa...@thelastpickle.com] > Envoyé : dimanche 28 avril 2013 22:54 > À : user@cassandra.apache.org > Objet : Re: cost estimate about some Cassandra patchs > > > Does anyone know enough of the inner working of Cassandra to tell me how > > m

Re: cost estimate about some Cassandra patchs

2013-04-28 Thread aaron morton
> Does anyone know enough of the inner working of Cassandra to tell me how much > work is needed to patch Cassandra to enable such communication > vectorization/batch ? > Assuming you mean "have the coordinator send multiple row read/write requests in a single message to replicas" Pretty sure

cost estimate about some Cassandra patchs

2013-04-26 Thread DE VITO Dominique
Hi, We are created a new partitioner that groups some rows with **different** row keys on the same replicas. But neither the batch_mutate, or the multiget_slice are able to take opportunity of this partitioner-defined placement to vectorize/batch communications between the coordinator and the