February 2015 - Users - oVirt List Archives

oVirt Manager problem
by Massimo Mad 25 Feb '15

25 Feb '15

I have a problem on my oVirt manager, the problem is that the directory /var/lib/pgsql/data fills. Initially thinking that my file system /var/log 2Gb was too small now have increased to 4Gb and is refilled, i have increased again to 5 Gb and is refilled again. Why ? I have implemented the backup of the manager with the script backup.sh, this could be the cause of the problem ? Regards Massimo

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Ovirt 3.5.x Power failure recovery
by Raymond 25 Feb '15

25 Feb '15

Hi, Long time read-only user here :) Unfortunately I need some info which I can't seem to find in the archives and on Google. In the past 5 months we’ve had two very rare occasions of power failures in my hometown. First one was a ms during spike or drop, just enough to cause a reboot, the other was a 30min failure. Problem After the power failure my ovirt nodes boot into CentOS 6.6 and are running fine. In both cases my ovirt-engine-VM wouldn't "start" due to service Postgresql not starting. I tried some things before reverting back to an older DB snapshot that was on the VM disk, but still not working. Postgresql is not starting due to "Duplicate UUID" My solution Calm down girlfriend and don't sleep Reinstall 1 node, create new ovirt-engine, recreate VM's and copy VM disk data from old store to new store. Add second node Other solutions I can think of 1. Start cluster without reinstall ;) 2. Buy UPS (€150 one time, extra €60 yearly power usage = €450 in 5 years) At this moment I’m 1 click away from buying the UPS, but I prefer a more elegant solution. After the last power failure I did NOT reinstall my second ovirt node and the old engine is also on storage available. Is there someone that wants some data to troubleshoot/analyse? Or is this just one of those things? Buy the UPS and get on with your life? Short HW overview 2x ovirt 3.5.x (i3/32GB ram,1Gb eth VM network, dual x520 NFS eth) 1x NFS (i3/4GB ram, 5TB SAS and 6TB SATA on Dell PERC,1Gb eth mgmt, dual x520 10Gb) 1Gb is used for VM networking, the 10Gb is connected via DAC cables and runs NFS-storage. This works great! Whole cluster runs below 120w and VM disk performance is around 700MB/s :) I bought all the HW with power usage in mind, PicoPSU's and 35w CPU's in all nodes. So adding 30w "extra" just for the UPS feels a bit like killing an elephant with tissues... kind regards Raymond

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el6 vs el7
by Nathanaël Blanchet 25 Feb '15

25 Feb '15

Hi all, I'm planning to migrate my ovirt el6 hosts to el7. Excepting that el6 will not be supported in next release of ovirt, is there a difference of performance between el7 and el6? I mean, are qemu or libvirt for example at the same level of performance/capabilities in el6 than in el7 (knowing that qemu-kvm 0.12 is still backported on el6) ? I heard that el7.1 will support live merge, if true will el6.7 support it as well or the difference between them is there?

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Local and remote storage?
by Pat Riehecky 25 Feb '15

25 Feb '15

Hello, I've run into an "odd" problem with oVirt 3.5.1. I've two sets of VMs: A) some fairly critical VMs which need HA and have access to shared storage B) some less important systems which can be reconstructed in the event of a disaster My plan was to use the slack disk on my oVirt nodes to host the 'B' systems while still allowing the 'A' systems to run there. This seems to not be allowed[1]. Is there a way I can utilize both the spare disk on my compute nodes and have HA configured for some VMs with shared storage? Pat [1] http://www.ovirt.org/OVirt_Administration_Guide#Preparing_Local_Storage -- Pat Riehecky Scientific Linux developer Fermi National Accelerator Laboratory www.fnal.gov www.scientificlinux.org

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Re: [ovirt-users] [ovirt-devel] [QE][ACTION NEEDED] oVirt 3.5.2 RC status - postponing
by Oved Ourfali 25 Feb '15

25 Feb '15

On Feb 24, 2015 4:54 PM, Sandro Bonazzola <sbonazzo(a)redhat.com> wrote: > > Hi, > We still have one open blocker for 3.5.2[1]: > > Bug ID Whiteboard Status Summary > 1161012 infra POST task cleaning utility should erase commands that have running tasks > Yair and Simone, what's blocking this one from getting merged? > We need to postpone the RC until this will be fixed. > The patch is already under review and verification so it shouldn't take too much. > > > There are still 48 bugs [2] targeted to 3.5.2. > Excluding node and documentation bugs we still have 42 bugs [3] targeted to 3.5.2. > > Whiteboard NEW ASSIGNED POST Total > doc 1 0 0 1 > docs 1 0 0 1 > gluster 4 0 1 5 > infra 4 2 8 14 > integration 0 0 1 1 > network 1 1 0 2 > node 4 0 1 5 > ppc 0 0 1 1 > sla 4 0 0 4 > storage 11 0 0 11 > ux 1 0 0 1 > virt 1 0 1 2 > Total 32 3 13 48 > > > Maintainers / Assignee: > - Please add the bugs to the tracker if you think that 3.5.2 should not be released without them fixed. > - Please update the target to 3.5.3 or later for bugs that won't be in 3.5.2: > it will ease gathering the blocking bugs for next releases. > - Please fill release notes, the page has been created and updated 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/1186161 > [2] http://goo.gl/crVJPH > [3] http://goo.gl/2qTZZU > [4] http://www.ovirt.org/OVirt_3.5.2_Release_Notes > [5] http://www.ovirt.org/Testing/oVirt_3.5.2_Testing > > -- > Sandro Bonazzola > Better technology. Faster innovation. Powered by community collaboration. > See how it works at redhat.com > _______________________________________________ > Devel mailing list > Devel(a)ovirt.org > http://lists.ovirt.org/mailman/listinfo/devel

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FYI FreeBSD on POWER8
by Jiri Belka 24 Feb '15

24 Feb '15

http://adrianchadd.blogspot.cz/2015/02/freebsd-on-power8-its-alive.html "...FreeBSD now boots inside of the hypervisor environment and seems stable enough to do development on." -- A: Because it messes up the order in which people normally read text. Q: Why is top-posting such a bad thing? A: Top-posting. Q: What is the most annoying thing on usenet and in e-mail? ~~ http://en.wikipedia.org/wiki/Posting_style

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[ACTION REQUIRED] oVirt 3.5.2 branch created
by Sandro Bonazzola 24 Feb '15

24 Feb '15

Hi, oVirt 3.5.2 branch has been created on hash: * 405c933 - userportal, webadmin: allow SSO robots to fill in the login form (34 minutes ago) <Greg Sheremeta> All patches targeted to 3.5.2 will need to be cherry-picked on the 3.5.2 branch too. Thanks -- Sandro Bonazzola Better technology. Faster innovation. Powered by community collaboration. See how it works at redhat.com

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Guest VM Running 160 RCU Processes
by Punit Dambiwal 24 Feb '15

24 Feb '15

Hi, I have one Ovirt cluster and under this cluster all the guest machines (such as centos,ubuntu,debian etc) almost 160 RCU processes running.... i searched on google about the RCU (It's kernel process "read-copy-upate") http://lwn.net/Articles/518953/ I want to know how i can modify this 160 processes to 10-20 or how i can to disable it....is there any bed impact if i disable it.... Thanks, Punit

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Ovirt & VPS & SingleSignOn
by Dubravko Sever 24 Feb '15

24 Feb '15

Hi, Currently I'm looking for new solution for providing VPS-s to my organization users, we don't need biling infrastructure.. Does anyone has case of ovirt as VPS management and user interface (please provide me some feedbacks)? And another question, what about integration with SingleSignOn infrastructure like shibboleth, based od SAML2? Thanks Dubravko -- Dubravko Sever Sektor za računalne sustave Sveučilište u Zagrebu, Sveučilišni računski centar (Srce), www.srce.unizg.hr Dubravko.Sever(a)srce.hr, tel: +385 1 616 5807, fax: +385 1 616 5559

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Re: [ovirt-users] Problems re-attaching an export domain
by Allon Mureinik 23 Feb '15

23 Feb '15

Maor, don't we have an REF to improve this on our radar? ----- Original Message ----- > From: "Donny Davis" <donny(a)cloudspin.me> > To: "Chris Burckhard" <chris.burckhard(a)gmail.com> > Cc: users(a)ovirt.org > Sent: Saturday, February 7, 2015 12:20:26 AM > Subject: Re: [ovirt-users] Problems re-attaching an export domain > > Give this a try > > http://www.ovirt.org/How_to_clear_the_storage_domain_pool_config_of_an_expo… > Feb 4, 2015 2:30 PM, Chris Burckhard <chris.burckhard(a)gmail.com> wrote: > > > > I had some issues with the virtual manager after upgrading, so exported my > > virtual machines to an export domain, then I tried to do a reinstall of > > the os and ovirt to go back to a previous version. I know now, that I > > should have put the storage into maintenance before re-installing, but I > > didn’t. Is there any way to get the export domain added to a new storage > > domain if the old one is gone? > > > > Error message that I get I try to attach the storage: > > error while executing action attach storage domain: the domain is already > > used by another data center > > _______________________________________________ > > Users mailing list > > Users(a)ovirt.org > > http://lists.ovirt.org/mailman/listinfo/users > _______________________________________________ > Users mailing list > Users(a)ovirt.org > http://lists.ovirt.org/mailman/listinfo/users > > >

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