On Tue, Dec 10, 2013 at 9:47 AM, Nadya Privalova <nprival...@mirantis.com>wrote:
> Julien, > > Yes, I use the same SQL for Nova and Ceilometer. Thanks for pointing this > out. My bad, I didn't take it into account. So if we want to use Ceilometer > + MySQL in production (in theory :) ) we need to use separate controllers > with Ceilometer's MySQL only. And each controller may run it's own > collector which will write data into "local" MySQL. Am I right that only > one instance of central-agent may be started (WIP > https://wiki.openstack.org/wiki/Ceilometer/blueprints/tasks-distribution)? > Please Julien correct me if I'm wrong. And maybe Ceilometer has > recommendations for production deployment and I just missed it? > You will want all of the ceilometer collectors writing to the same database, rather than having a local database for each one. Otherwise when you query the ceilometer API you won't see all of the results. Doug > > > On Tue, Dec 10, 2013 at 4:25 PM, Boris Pavlovic <bpavlo...@mirantis.com>wrote: > >> Nadya, Julien, >> >> >> We are working around profiling system based on logs. This will allows us >> to detect bottlenecks. >> We should make a couple of small patches in each project to support >> profiling. >> >> As we are going to be well integrated with OpenStack infrastructure we >> are going to use Ceilometer as a log collector. >> And we already made patch for this in Ceilometer: >> https://review.openstack.org/#/c/60262/ >> So it will be nice to get it reviewed/merged. >> >> >> Thanks. >> >> >> Best regards, >> Boris Pavlovic >> >> >> >> >> >> >> On Tue, Dec 10, 2013 at 3:19 PM, Julien Danjou <jul...@danjou.info>wrote: >> >>> On Tue, Dec 10 2013, Nadya Privalova wrote: >>> >>> Hi Nadya, >>> >>> > Guys, if you have any questions or comments you are welcome! I think >>> that >>> > 2x difference between avg time in "empty lab" and "5 sec polling" >>> scenario >>> > is not a bad result. But 100 instances that were being monitored >>> during the >>> > test is not a real load for the lab. What do you think? Should I >>> repeat the >>> > test with 1000 instances? >>> >>> You didn't mention where you were storing the metrics. If you store them >>> in the same MySQL DB that's used by Nova for example, it's likely that's >>> the problem is the load Ceilometer puts on the MySQL cluster slows Nova >>> down. >>> >>> I don't think it's worth running the test with more instances for now. >>> The results are clear, the next action should be to see why things are >>> slowed down that much. It shouldn't happen. >>> >>> -- >>> Julien Danjou >>> # Free Software hacker # independent consultant >>> # http://julien.danjou.info >>> >>> _______________________________________________ >>> OpenStack-dev mailing list >>> OpenStack-dev@lists.openstack.org >>> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev >>> >>> >> > > _______________________________________________ > OpenStack-dev mailing list > OpenStack-dev@lists.openstack.org > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev > >
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