gistfile1.txt

07:14 <hackeron> how does riak compare to couchdb?
 
07:45 <justinsheehy> hackeron: couchdb is a local document database with very easy 
replication and is thus very well-suited to things like offline applications 

07:45 <justinsheehy> ications 

07:46 <justinsheehy> hackeron: riak is a distributed system that allows you to get 
more throughput or capacity or availability just by adding hosts 

07:46 <justinsheehy> hackeron: they do have some things in common, such as very 
easy-to-use HTTP interfaces -- but if you're looking for the differences, that's a start 

07:53 <hackeron> justinsheehy: thanks, in my application, I would like 
all nodes to  have the full copy of the database - 
so if I set up riak in this way, what would be the 
differences/advantages to couchdb? 

07:53 <hackeron> as I understand riak recovers from network downtime just as well as couchdb? 

07:56 <justinsheehy> hackeron: it depends on why you want that, and your overall 
operational model. both riak and couchdb are able to handle outages between nodes, 
but in a very different way. 

07:58 <justinsheehy> I won't be on here for more than another few min, but can try to help. 

07:59 <hackeron> justinsheehy: I'm working on a linux based survaillance 
system (demo here: demo1.xanview.com) - basically there is a limit of 
about 16 cameras per  host and I have some installations with 40 
cameras or more - so the idea is if there is a copy of the database on all 
hosts and all hosts are independent,  each can record their own videos/events 
independently but you can access all event  details from any host 

08:00 <hackeron> justinsheehy: so what looks good in couchdb is the ability for any host to 
go offline and work independently and then be brought up to date when it's back - but I 
understand I can 
do that with riak, and gain additional flexibility and links and various other goodies? 

08:01 <justinsheehy> hackeron: I can see either riak or couchdb working out for that. 
you intend to have enough space on every host for all of the data?
 
08:01 <hackeron> justinsheehy: not all of the data, but for the database sure - 
the documents will store thumbnails and a filepath to the videos 

08:02 <hackeron> but the point is if one hosts goes down, it's videos wont be viewable, 
but you still see thumbnails and the interface 

08:03 <justinsheehy> hackeron: honestly, I think either one could work fine for what you 
describe. I'd say to play with both and decide based on which operational model and data 
model works out better for your overall needs. 

08:04 <justinsheehy> okay, I have to run now. kids are waiting for me. back on later, 
or always on the mailing list eventually. 

08:04 <hackeron> ok, thanks :) - enjoy the kids 

08:04 <justinsheehy> thanks, I will.