Re: [Wikitech-l] Information on MW and Redis?

2013-05-24 Thread Aaron Schulz
Indeed, the queue cannot use memcached. Redis will trivialize the time spent on actually queue operations, which could help if that is a bottleneck for job runners. If the actual jobs themselves are slow, of course it won't help too much. Have you already tried setting the job run rate to 0 and is

Re: [Wikitech-l] Information on MW and Redis?

2013-05-24 Thread Jamie Thingelstad
I can see how memcached and redis would have similar performance for sessions. Is that also true for job queue? I was assuming that job queue could move from database to redis, but not to memcached. Is that a correct assumption? The main reason I could see moving sessions into redis would be to

Re: [Wikitech-l] Information on MW and Redis?

2013-05-24 Thread Aaron Schulz
Note that if you already use memcached for the main cache, there isn't really any reason to switch to redis unless you need replication or persistence. Anyway, to use it for sessions, if you had $wgSessionCacheType explicitly set to something, then you'd need to change that too (like to 'pecl-redi

Re: [Wikitech-l] Information on MW and Redis?

2013-05-24 Thread Aaron Schulz
2.2.2 of the extensions works for me. I downloaded it from source and compiled it. The redis server itself will need to be 2.6 or higher for the job queue. Looking around, I forgot to mention that JobQueueRedis was actually removed from 1.21 (though it's in master and will be in 1.22). -- View

Re: [Wikitech-l] Information on MW and Redis?

2013-05-24 Thread Jamie Thingelstad
If you implement this, is there any use for memcached still? I assume PHP also needs to be told that sessions are in redis? Jamie Thingelstad ja...@thingelstad.com mobile: 612-810-3699 find me on AIM Twitter Facebook LinkedIn On May 24, 2013, at 2:44 PM, Aaron Schulz wrote: > To use redis as a

Re: [Wikitech-l] Information on MW and Redis?

2013-05-24 Thread Jamie Thingelstad
Awesome! Thank you! Do you know the version required for these? Thinking maybe I could writeup a page on mw.o documenting the process of putting redis in place for these. Jamie Thingelstad ja...@thingelstad.com mobile: 612-810-3699 find me on AIM Twitter Facebook LinkedIn On May 24, 2013, at 2:4

Re: [Wikitech-l] Information on MW and Redis?

2013-05-24 Thread Aaron Schulz
To use redis as a cache you can have something like: // requires phpredis extension for PHP $wgObjectCaches['pecl-redis'] = array( 'class' => 'RedisBagOStuff', 'servers' => array( '127.0.0.1:6379' ), ); $wgMainCacheType = 'pecl-redis'; This would also require that the redis serv