Re: [ovirt-users] ovirt-ha-agent cpu usage

On 7 Oct 2016, at 14:42, Nir Soffer <nsoffer(a)redhat.com&gt; wrote: On Wed, Oct 5, 2016 at 1:33 PM, Simone Tiraboschi <stirabos(a)redhat.com&gt; wrote: > > > On Wed, Oct 5, 2016 at 10:34 AM, Nir Soffer <nsoffer(a)redhat.com&gt; wrote: > >> On Wed, Oct 5, 2016 at 10:24 AM, Simone Tiraboschi <stirabos(a)redhat.com&gt; >> wrote: >> >>> >>> >>> On Wed, Oct 5, 2016 at 9:17 AM, gregor <gregor_forum(a)catrix.at&gt; wrote: >>> >>>> Hi, >>>> >>>> did you found a solution or cause for this high CPU usage? >>>> I have installed the self hosted engine on another server and there is >>>> no VM running but ovirt-ha-agent uses heavily the CPU. >>>> >>> >>> Yes, it's due to the fact that ovirt-ha-agent periodically reconnects >>> over json rpc and this is CPU intensive since the client has to parse the >>> yaml API specification each time it connects. >>> >> wasn’t it suppose to be fixed to reuse the connection? Like all the other clients (vdsm migration code:-)

Does schema validation matter then if there would be only one connection at the start up?

>> Simone, reusing the connection is good idea anyway, but what you >> describe is >> a bug in the client library. The library does *not* need to load and >> parse the >> schema at all for sending requests to vdsm. >> >> The schema is only needed if you want to verify request parameters, >> or provide online help, these are not needed in a client library. >> >> Please file an infra bug about it. >> > > Done, https://bugzilla.redhat.com/show_bug.cgi?id=1381899 > Here is a patch that should eliminate most most of the problem: https://gerrit.ovirt.org/65230 Would be nice if it can be tested on the system showing this problem. Cheers, Nir _______________________________________________ Users mailing list Users(a)ovirt.org http://lists.ovirt.org/mailman/listinfo/users