On Fri, Oct 7, 2016 at 3:25 PM, Michal Skrivanek < [email protected]> wrote:
> > On 7 Oct 2016, at 14:59, Nir Soffer <[email protected]> wrote: > > On Fri, Oct 7, 2016 at 3:52 PM, Michal Skrivanek < > [email protected]> wrote: > >> >> On 7 Oct 2016, at 14:42, Nir Soffer <[email protected]> wrote: >> >> On Wed, Oct 5, 2016 at 1:33 PM, Simone Tiraboschi <[email protected]> >> wrote: >> >>> >>> >>> On Wed, Oct 5, 2016 at 10:34 AM, Nir Soffer <[email protected]> wrote: >>> >>>> On Wed, Oct 5, 2016 at 10:24 AM, Simone Tiraboschi <[email protected] >>>> > wrote: >>>> >>>>> >>>>> >>>>> On Wed, Oct 5, 2016 at 9:17 AM, gregor <[email protected]> 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:-) >> > > This is orthogonal issue. > > > Yes it is. And that’s the issue;-) > Both are wrong, but by “fixing” the schema validation only you lose the > motivation to fix the meaningless wasteful reconnect > Yes, we are going to fix that too ( https://bugzilla.redhat.com/show_bug.cgi?id=1349829 ) but it would require also https://bugzilla.redhat.com/show_bug.cgi?id=1376843 to be fixed. > > > >> Does schema validation matter then if there would be only one connection >> at the start up? >> > > Loading once does not help command line tools like vdsClient, > hosted-engine and > vdsm-tool. > > > none of the other tools is using json-rpc. > hosted-engine-setup is, and sooner or later we'll have to migrate also the remaining tools since xmlrpc has been deprecated with 4.0 > > > Nir > > >> >> >>>> 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 >> [email protected] >> http://lists.ovirt.org/mailman/listinfo/users >> >> >> > _______________________________________________ > Users mailing list > [email protected] > http://lists.ovirt.org/mailman/listinfo/users > > > > _______________________________________________ > Users mailing list > [email protected] > http://lists.ovirt.org/mailman/listinfo/users > > -- IMPORTANT! This message has been scanned for viruses and phishing links. However, it is your responsibility to evaluate the links and attachments you choose to click. If you are uncertain, we always try to help. Greetings [email protected] -- IMPORTANT! This message has been scanned for viruses and phishing links. However, it is your responsibility to evaluate the links and attachments you choose to click. If you are uncertain, we always try to help. Greetings [email protected]
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