Re: Riak and Amazon EC2

2010-06-27 Thread Dmitry Demeshchuk
Hi Dan, Thanks for the explanation. I haven't been looking into the MapReduce wiki page for a while so I missed that point about link walking. Also, thanks for the clarification that reduce phase is performed on the initiating node. Though I didn't use reduce functionality for now, it's an importa

Linked associations in Ripple

2010-06-27 Thread Sean Cribbs
Hey Ruby+Riak users, I've just pushed to ripple:master an initial implementation of inter-Document associations via links, and I'm looking for feedback. The implementation is much simpler than I expected it to be, but I'm aware there are a number of special cases and expected behavior that I ha

Re: Riak and Amazon EC2

2010-06-27 Thread Dan Reverri
Hi Dmitry, Regarding map reduce query performance in a cluster, map phases are run in parallel so adding more machines to the cluster means more map functions can be run simultaneously. Reduce phases currently only run on the node that initiated the query so additional machines will not affect the

A small note about basho_bench

2010-06-27 Thread Dmitry Demeshchuk
Greetings. I noticed that the pictures that R generates from basho_bench results have one inconvenient point. All the graphs (at least, all I generated myself or saw in the Internet) with separated requests latencies (i.e. second and third lines) always have much free space at the top of the curv

Re: Riak and Amazon EC2

2010-06-27 Thread Dmitry Demeshchuk
On Fri, Jun 25, 2010 at 8:25 PM, Ryan Tilder wrote: > Hi, Dmitry.  There are some gaps in the information you included here that > might help clarify what's going on so I'm going to just rattle off some > questions for clarification. > Is your test driver only making requests of a single EC2 insta