Re: [collectd] collectd 5.10 threading
Hi, On Fri, Sep 14, 2012 at 05:37:08PM +0200, Cyril Feraudet wrote: A friend of mine is currently writing a plugin to do aggregation of metric directly in Collectd if this is the subject. You are aware of the following branch, aren't you? https://github.com/collectd/collectd/tree/ff/aggregate ___ collectd mailing list collectd@verplant.org http://mailman.verplant.org/listinfo/collectd
Re: [collectd] collectd 5.10 threading
Hi, I already developed one : git clone -b cf/perfwatcher http://github.com/feraudet/collectd.git Have look on plugin write_mysql Cyril On 14 sept. 2012, at 16:35, Brandon Hume hume-ml+colle...@bofh.ca wrote: I'm trying to debug a plugin (not part of the distribution) that uses mysql to write the most recent measurements into a database. I'm running it in an extremely threaded environment - Solaris on a SPARC T4 with a crazy number of CPUs - and it crashes and gets queries out of sync and many other signs of a race condition. Mysql is supposedly thread safe but you have to be careful about initializing the functions and coordinating queries. So, I'm reviewing the code and trying to find spots where it would be tripping over itself. At what point does collectd start threading? Is it already spawning threads by the time the plugin init functions are being called? Is it possible for a plugin init function to be called multiple times? ___ collectd mailing list collectd@verplant.org http://mailman.verplant.org/listinfo/collectd ___ collectd mailing list collectd@verplant.org http://mailman.verplant.org/listinfo/collectd
Re: [collectd] collectd 5.10 threading
I already developed one : git clone -b cf/perfwatcherhttp://github.com/feraudet/collectd.git Have look on plugin write_mysql That's exactly the plugin I'm trying to fix. The problem may or may not be in the write_mysql code, or it might be falling victim to a problem elsewhere. This is mine ;-) Try the last version on my branch. This plugin work fine in a large environment (5300 server and more than 19000 update by second in MySQL) but never tested on Solaris. Are you using Perfwatcher too ? A friend of mine is currently writing a plugin to do aggregation of metric directly in Collectd if this is the subject. ___ collectd mailing list collectd@verplant.org http://mailman.verplant.org/listinfo/collectd
Re: [collectd] collectd 5.10 threading
On 15/09/2012, at 1:07 AM, Cyril Feraudet wrote: Are you using Perfwatcher too ? A friend of mine is currently writing a plugin to do aggregation of metric directly in Collectd if this is the subject. Could you point me at this aggregation plugin Cyril? Sounds most interesting, thanks. ___ collectd mailing list collectd@verplant.org http://mailman.verplant.org/listinfo/collectd
