Facebook messaging and choice of HBase over Cassandra - what can we learn?

2010-11-21 Thread Simon Reavely
this decision to address a target user base. Of course we might also conclude that its just "not a Cassandra use-case"! Cheers, Simon -- Simon Reavely simon.reav...@gmail.com

Re: atomic test-or-set

2010-10-06 Thread Simon Reavely
Ryan, Independent of this ambiguous requirement what were you thinking about. What I am trying to ask is can you be more specific/concrete about when you can Simon Reavely On Oct 5, 2010, at 11:30 AM, Ryan King wrote: > On Tue, Oct 5, 2010 at 8:23 AM, Ian Rogers > wrote: >&

Re: Schema question

2010-10-03 Thread Simon Reavely
Two questions: 1. So this compaction challenge is a CPU issue or a disk IO issue in your case? 2. In other places people have recommended adjustments from the defaults to control compaction overhead...did you adjust or experiment with how to control compaction? Simon Reavely On Sep 21

Re: Schema question

2010-09-21 Thread Simon Reavely
Thanks for the writeup...good stuff! Any lessons learnt you'd like to share or challenges that persist? Simon Reavely On Sep 20, 2010, at 6:37 AM, Juho Mäkinen wrote: > We have built a facebook style "messenger" into our web site which > uses cassandra as storage ba

Monitoring cassandra using Munin...how to get a hourly graph?

2010-08-13 Thread Simon Reavely
re out how to do it. Cheers, Simon -- Simon Reavely simon.reav...@gmail.com

Looking for recommendation on DELL server types/spec for running Cassandra nodes

2010-07-22 Thread Simon Reavely
Hi, I'm looking for a recommendation on DELL server types/spec for running Cassandra nodes What model DELL servers are folks using with success? What models or type of hardware have people regretted using? -- Simon Reavely simon.reav...@gmail.com

Re: read operation is slow

2010-06-18 Thread Simon Reavely
your query paths Simon Reavely On Jun 11, 2010, at 9:49 PM, "caribbean410" wrote: Thanks for the suggestion. For the test case, it is 1 key and 1 column. I once changed 10 to 1, as I remember there is no much difference. I have 200k keys and each key is randomly generated.