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oVirt opytimizer, updated Hangouts
by Martin Sivak 29 Oct '14

29 Oct '14

Sorry for the crash.. here is a new invite: https://plus.google.com/hangouts/_/gzn2mk35jeefycjry4nstkxnyqa -- Martin Sivák msivak(a)redhat.com Red Hat Czech RHEV-M SLA / Brno, CZ

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CentOS 7 on the node
by Алексей Николаев 29 Oct '14

29 Oct '14

Hi community, Is it possible to add to the cluster with latest engine node with CentOS 7?

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Re: [ovirt-users] Ovirt VM Performance abd CPU times
by Xavier Naveira 29 Oct '14

29 Oct '14

On 10/29/2014 11:47 AM, Xavier Naveira wrote: > On 10/29/2014 11:40 AM, Daniel Helgenberger wrote: >> >> >> On 29.10.2014 10:21, Xavier Naveira wrote: >>> Hi, >>> >>> We are migrating our ifrastructure from kvm+libvirt hypervisors to >>> ovirt. >>> >>> Everything is working fine but we're noticing that all the qemu-kvm >>> processes in the hypervisors take a lot of CPU. >> Without further details of the workload this is hard tell. One Reason I >> can think of might be KSM [1]. Is it enabled on your cluster(s)? What is >> your mem over-commitment setting? >> >> Note, IIRC the KSM policy is currently hard coded; it will start at 80% >> host mem usage. >> >> [1] http://www.ovirt.org/Sla/host-mom-policy >>> >>> The typical example is an idle machine, running top from the machine >>> itself it reports cpu use percentages below 10% and loads (with 2 >>> processors) of 0.0x. The process running that machine in the hypervisor >>> rports cpu uses in the order of the 80-100%. >>> >>> Should the values look like this? Why are the idle machines eating up so >>> much CPU time? >>> >>> Thank you. >>> Xavier >>> >>> _______________________________________________ >>> Users mailing list >>> Users(a)ovirt.org >>> http://lists.ovirt.org/mailman/listinfo/users >>> >> > Hi, thank you for the answer. I've been trying to work out some pattern and realized that the VMs using that much cpu all are Redhat 5.x, the Readhat 6.x doesn't exhibit this kind of high cpu use. (we run only redhat/centos 5.x/6.x on the cluster) I'll take a look to the KSM config. Cheers, Xavier

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Ovirt VM Performance abd CPU times
by Xavier Naveira 29 Oct '14

29 Oct '14

Hi, We are migrating our ifrastructure from kvm+libvirt hypervisors to ovirt. Everything is working fine but we're noticing that all the qemu-kvm processes in the hypervisors take a lot of CPU. The typical example is an idle machine, running top from the machine itself it reports cpu use percentages below 10% and loads (with 2 processors) of 0.0x. The process running that machine in the hypervisor rports cpu uses in the order of the 80-100%. Should the values look like this? Why are the idle machines eating up so much CPU time? Thank you. Xavier

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[QE][ACTION NEEDED] oVirt 3.5.1 RC status
by Sandro Bonazzola 29 Oct '14

29 Oct '14

Hi, We're going to start composing oVirt 3.5.1 RC on *2014-11-25 08:00 UTC* from 3.5 branch. Maintainers: - Please be sure that 3.5 snapshot allow to create VMs before *2014-11-24 15:00 UTC* - Please be sure that no pending patches are going to block the release before *2014-11-24 15:00 UTC* - If any patch must block the RC release please raise the issue as soon as possible. A bug tracker [1] has been opened and shows no open blockers. There are still 193 bugs [2] targeted to 3.5.1. Excluding node and documentation bugs we still have 164 bugs [3] targeted to 3.5.1. Maintainers / Assignee: - Please add the bugs to the tracker if you think that 3.5.1 should not be released without them fixed. - Please update the target to 3.5.2 or later for bugs that won't be in 3.5.1: it will ease gathering the blocking bugs for next releases. - Please fill release notes, the page has been created here [4] Community: - If you're testing oVirt 3.5 nightly snapshot, please add yourself to the test page [5] [1] http://bugzilla.redhat.com/1155170 [2] http://goo.gl/7G0PDV [3] http://goo.gl/6gUbVr [4] http://www.ovirt.org/OVirt_3.5.1_Release_Notes [5] http://www.ovirt.org/Testing/oVirt_3.5.1_Testing -- Sandro Bonazzola Better technology. Faster innovation. Powered by community collaboration. See how it works at redhat.com

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Run once in a mode or not
by Shanil S 29 Oct '14

29 Oct '14

Hi, Is there any api function call to know whether a vm is in Run once in a mode or not ? -- Regards Shanil

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Upgrade from 3.5rc to 3.5 final question
by Gianluca Cecchi 29 Oct '14

29 Oct '14

I see this in release notes for 3.5: " If you're using pre-release repo you'll need to re-enable pre release repository: [ovirt-3.5-pre] name=Latest oVirt 3.5 Pre Release #baseurl=http://resources.ovirt.org/pub/ovirt-3.5-pre/rpm/fc$releasever/ mirrorlist= http://resources.ovirt.org/pub/yum-repo/mirrorlist-ovirt-3.5-pre-fc$release… enabled=1 skip_if_unavailable=1 gpgcheck=1 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-ovirt-3.5 and to run: # yum update "ovirt-engine-setup*" # engine-setup " but this leaves me some doubts... I currently have RC3 (or 4, I don't remember exactly). But if I walk through the pre-repo mirror, it seems to me that for example I will get ovirt-engine-backend-3.5.0.1-0.0.master.20141009085636.el6.noarch.rpm while going through 3.5 repo I will get ovirt-engine-backend-3.5.0.1-1.el6.noarch.rpm Are they indeed the same? Can you confirm that if I have a RC release I still have to use -pre repo to update to official 3.5.0? Thanks, Gianluca

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Live snapshot failed but still there ??
by Punit Dambiwal 29 Oct '14

29 Oct '14

Hi, I try to create the live snapshot it failed because of the VM filesystem inconsistency but in the engine dashboard it shows it created ?? Screen shots attached.... Thanks, Punit

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migrate from stand alone on FC19 to hosted OK to use CentOS 7?
by Alastair Neil 29 Oct '14

29 Oct '14

I am trying to migrate my old ovirt install which started out at 3.3 standalone engine on FC19 to a hosted engine. I want to use CentOS , however, the postgresql version on 6.5 is old (8.4.20) and I am unable to get a clean restore. The version on FC 19 is 9.2.8, it looks like EL 7 has 9.2.7 (I am hoping the difference in the minor rev will not bite me). I was wondering if there are any issues using EL 7 to host the engine? I know I had seen some reports of issues with 3.5 on EL7 as hosts but was not sure if the engine had any gotchas. Thanks, Alastair

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Opened BZ for small mem leak
by Daniel Helgenberger 28 Oct '14

28 Oct '14

Hello Sven and Dan, just FYI I opened a BZ [1] for the small mem leak of VDSM, 300KiB since Sven reported the same thing and it is there (and still is) since a long time now. With some help of us it might be pinpointed; the growth is quite linear. [2] Also, I think the issue might be neglectable in many / most production environments. [1] https://bugzilla.redhat.com/show_bug.cgi?id=1158108 [2] https://bugzilla.redhat.com/show_bug.cgi?id=1147148#c15 -- Daniel Helgenberger m box bewegtbild GmbH P: +49/30/2408781-22 F: +49/30/2408781-10 ACKERSTR. 19 D-10115 BERLIN www.m-box.de www.monkeymen.tv Geschäftsführer: Martin Retschitzegger / Michaela Göllner Handeslregister: Amtsgericht Charlottenburg / HRB 112767

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