<div dir="ltr"><div class="gmail_extra"><div class="gmail_quote">On Wed, Oct 5, 2016 at 1:33 PM, Simone Tiraboschi <span dir="ltr"><<a href="mailto:stirabos@redhat.com" target="_blank">stirabos@redhat.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><br><div class="gmail_extra"><br><div class="gmail_quote"><span class="gmail-">On Wed, Oct 5, 2016 at 10:34 AM, Nir Soffer <span dir="ltr"><<a href="mailto:nsoffer@redhat.com" target="_blank">nsoffer@redhat.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div class="gmail_extra"><div class="gmail_quote"><span>On Wed, Oct 5, 2016 at 10:24 AM, Simone Tiraboschi <span dir="ltr"><<a href="mailto:stirabos@redhat.com" target="_blank">stirabos@redhat.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><br><div class="gmail_extra"><br><div class="gmail_quote"><span>On Wed, Oct 5, 2016 at 9:17 AM, gregor <span dir="ltr"><<a href="mailto:gregor_forum@catrix.at" target="_blank">gregor_forum@catrix.at</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Hi,<br>
<br>
did you found a solution or cause for this high CPU usage?<br>
I have installed the self hosted engine on another server and there is<br>
no VM running but ovirt-ha-agent uses heavily the CPU.<br></blockquote><div><br></div></span>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.<br></div></div></div></blockquote><div><br></div></span><div>Simone, reusing the connection is good idea anyway, but what you describe is </div><div>a bug in the client library. The library does *not* need to load and parse the</div><div>schema at all for sending requests to vdsm.</div><div><br></div><div>The schema is only needed if you want to verify request parameters,</div><div>or provide online help, these are not needed in a client library.</div><div><br></div><div>Please file an infra bug about it.</div></div></div></div></blockquote><div><br></div></span><div>Done, <a href="https://bugzilla.redhat.com/show_bug.cgi?id=1381899" target="_blank">https://bugzilla.redhat.com/<wbr>show_bug.cgi?id=1381899</a></div></div></div></div></blockquote><div><br></div><div>Here is a patch that should eliminate most most of the problem:</div><div><a href="https://gerrit.ovirt.org/65230">https://gerrit.ovirt.org/65230</a><br></div><div><br></div><div>Would be nice if it can be tested on the system showing this problem.</div><div><br></div><div>Cheers,</div><div>Nir</div></div></div></div>