----- Original Message ----- > From: "Wei D Chen" <[email protected]> > To: "Ofri Masad" <[email protected]> > Cc: "Oved Ourfalli" <[email protected]>, [email protected] > Sent: Sunday, April 21, 2013 4:00:55 PM > Subject: Re: [Engine-devel] Design wiki page for trusted compute pools > integration with oVirt has been updated > > Ofri, > > Absolutely right, aggregated query has a significantly time improve compared > to separated queries. I agree a aggregated query on engine's starting. Is it > possible to invoke attestation service in engine's initialization code block > instead of "quartz job"? Is there any class similar with " > InitVdsOnUpCommand " for engine's initialization? > > Best Regards, > Dave Chen > org.ovirt.engine.core.bll.Backend.Initialize()
Note you cannot block this method while waiting for results. Instead I suggest you fire a one-time background request from this method. > -----Original Message----- > From: Ofri Masad [mailto:[email protected]] > Sent: Sunday, April 21, 2013 3:29 PM > To: Chen, Wei D > Cc: Oved Ourfalli; [email protected]; Itamar Heim > Subject: Re: [Engine-devel] Design wiki page for trusted compute pools > integration with oVirt has been updated > > Dave, > > If I'm not mistaking, there is a big difference between separated queries to > the attestation server and aggregated one? > Is it true? > > Thanks, > Ofri > > ----- Original Message ----- > > From: "Itamar Heim" <[email protected]> > > To: "Ofri Masad" <[email protected]> > > Cc: "Oved Ourfalli" <[email protected]>, "Wei D Chen" > > <[email protected]>, [email protected] > > Sent: Sunday, April 21, 2013 10:20:17 AM > > Subject: Re: [Engine-devel] Design wiki page for trusted compute pools > > integration with oVirt has been updated > > > > On 04/21/2013 10:13 AM, Ofri Masad wrote: > > > Hi, > > > One more thing we need to think about for the second approach - > > > aggregated query. On engine start we need to determine the trust > > > state of all the hosts. sending a separate query for each host will > > > overload the attestation host and the network. an initial aggregated > > > query needs to be send when the engine starts. > > > Same thing can happen after management network fail and so on. > > > Maybe we can run a quartz job every x minutes, checking if a large > > > part of the hosts in the cluster (like 30%) are untrusted - in that > > > case run the aggregated query. > > > > are we sure this optimization is needed? > > how heavy/latent is the call to the attestation service? > > > _______________________________________________ > Engine-devel mailing list > [email protected] > http://lists.ovirt.org/mailman/listinfo/engine-devel > _______________________________________________ Engine-devel mailing list [email protected] http://lists.ovirt.org/mailman/listinfo/engine-devel
