Ok, that sounds like it would do what you want. Thanks for clarifying. :-) Doug
On Thu, Dec 12, 2013 at 4:06 AM, Nadya Privalova <nprival...@mirantis.com>wrote: > Doug, > > Sorry for confusing you with 'local' term. I meant that collector is up on > the node which is one of the Galera-nodes. Data will be replicated and all > the Galera nodes will be synced. > > Nadya > > > On Thu, Dec 12, 2013 at 2:01 AM, Doug Hellmann < > doug.hellm...@dreamhost.com> wrote: > >> >> >> >> 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 >>> >>> >> >> _______________________________________________ >> 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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