November 2013 - Users - oVirt List Archives

Re: [Users] backups
by Martijn Grendelman 28 Nov '13

28 Nov '13

Blaster schreef op 27-11-2013 17:23: > On 11/27/2013 4:24 AM, Martijn Grendelman wrote: >> The problem with snapshot-based backups is, that they are usually only >> crash-consistent, meaning that they contain the state of a system's >> disks as they would be if you pulled the power plug on a server. If >> you restore a system from this type of backup, you would see file >> system recovery happening at the first boot, and you risk data loss >> from -for example- database servers. > > The work-around for this is to SSH into the guest first, put the > database into backup mode(maybe run sync a time or two to flush out as > much from RAM as possible), take the snap shot, ssh back in to resume > the database, backup the snap, delete the snap. Yes, for example for MySQL, you could 1. issue a FLUSH TABLES WITH READ LOCK statement 2. create a snapshot 3. issue a UNLOCK TABLES statement before starting a backup from the snapshot, to get a consistent backup of the binary table space. Cheers, Martijn.

1 0

[Users] oVirt PPC status update
by Sandro Bonazzola 28 Nov '13

28 Nov '13

Hi, anybody can report about PPC status for 3.3.2 and 3.4.0 target releases? It would be nice having someone for PPC at ovirt-sync meeting from next week on, so please join :-) Thanks, -- Sandro Bonazzola Better technology. Faster innovation. Powered by community collaboration. See how it works at redhat.com

1 0

[Users] Where do you run the engine?
by Ernest Beinrohr 28 Nov '13

28 Nov '13

This is a multi-part message in MIME format. --------------010204060004090501070202 Content-Type: text/plain; charset=windows-1250; format=flowed Content-Transfer-Encoding: 8bit Just curious, where/how you run the engine. I run it in libvirt/kvm on one of my storage domains. -- Ernest Beinrohr, AXON PRO DevOps, Ing <http://www.beinrohr.sk/ing.php>, RHCE <http://www.beinrohr.sk/rhce.php>, RHCVA <http://www.beinrohr.sk/rhce.php>, LPIC <http://www.beinrohr.sk/lpic.php>, VCA <http://www.beinrohr.sk/vca.php>, +421-2--6241-0360 <callto://+421-2--6241-0360>, +421-903--482-603 <callto://+421-903--482-603> icq:28153343, skype:oernii-work <callto://oernii-work>, jabber:oernii@jabber.org ------------------------------------------------------------------------ For a successful technology, reality must take precedence over public relations, for Nature cannot be fooled. Richard Feynman --------------010204060004090501070202 Content-Type: text/html; charset=windows-1250 Content-Transfer-Encoding: 8bit <html> <head> <meta http-equiv="content-type" content="text/html; charset=windows-1250"> </head> <body bgcolor="#FFFFFF" text="#000000"> Just curious, where/how you run the engine. I run it in libvirt/kvm on one of my storage domains.<br> <br> <br> <div class="moz-signature">-- <br> <div id="oernii_footer" style="color: gray;"> <span style="font-family: Lucida Console, Luxi Mono, Courier, monospace; font-size: 90%;"> Ernest Beinrohr, AXON PRO<br> DevOps, <a style="text-decoration: none; color: gray;" href="http://www.beinrohr.sk/ing.php">Ing</a>, <a style="text-decoration: none; color: gray;" href="http://www.beinrohr.sk/rhce.php">RHCE</a>, <a style="text-decoration: none; color: gray;" href="http://www.beinrohr.sk/rhce.php">RHCVA</a>, <a style="text-decoration: none; color: gray;" href="http://www.beinrohr.sk/lpic.php">LPIC</a>, <a style="text-decoration: none; color: gray;" href="http://www.beinrohr.sk/vca.php">VCA</a>, <a style="text-decoration: none; color: gray;" href="callto://+421-2--6241-0360">+421-2--6241-0360</a>, <a style="text-decoration: none; color: gray;" href="callto://+421-903--482-603">+421-903--482-603</a><br> icq:28153343, <a style="text-decoration: none; color: gray;" href="callto://oernii-work">skype:oernii-work</a>, <a class="moz-txt-link-abbreviated" href="mailto:jabber:oernii@jabber.org">jabber:oernii@jabber.org</a> <br> </span> <hr style="height: 1px; width: 95%"> <span style="font-size: 70%;"> For a successful technology, reality must take precedence over public relations, for Nature cannot be fooled. Richard Feynman </span> </div> </div> <img src="http://nojsstats.appspot.com/UA-44497096-1/email.beinrohr.sk" moz-do-not-send="true" border="0" height="1" width="1"> </body> </html> --------------010204060004090501070202--

3 2

[Users] oVirt Node 3.0.3-1 for oVirt 3.3 release
by Fabian Deutsch 27 Nov '13

27 Nov '13

Hello, finally also oVirt Node images for oVirt 3.3.1 are available. The latest ISO can be downloaded here: http://resources.ovirt.org/releases/3.3/iso/ To get started take a look at the section in the Quick Start Guide: http://www.ovirt.org/Quick_Start_Guide#Install_oVirt_Node oVirt Node is a small image with yet enough software for bare metal hosts which shall be managed by oVirt Engine. It is easy to handle and can be deployed using CD/DVD, PXE/Foreman and USB. http://www.ovirt.org/Node - fabian

1 0

[Users] Guest Agent
by Thomas Suckow 27 Nov '13

27 Nov '13

I am running several RHEL6 vms in ovirt. I am looking to install the guest agent. The releases repo has ovirt-guest-agent-common and EPEL has ovirt-guest-agent. Which of these should I use? How is this distinct from qemu-guest-agent? If I were to install an Ubuntu vm, what should I do about the guest agent? - Thomas

6 29

[Users] ssl error using ovirt-shell in 3.3.1
by Gianluca Cecchi 27 Nov '13

27 Nov '13

Hello, based on RHEVM 3.2 and 3.3 beta docs I'm trying connection from ovirt cli. I have: engine on f19 + ovirt stable ovirt-engine-3.3.1-2.fc19.noarch client from where I run cli is f19 with ovirt-engine-sdk-python-3.3.0.7-1.fc19.noarch ovirt-engine-cli-3.3.0.5-1.fc19.noarch $ curl -o ovirt-f18engine.cer http://f18engine/ca.crt $ cat ~/.ovirtshellrc [cli] autoconnect = True autopage = True [ovirt-shell] username = "internal\\admin" timeout = None extended_prompt = False url = https://f18engine:443/api insecure = False filter = False session_timeout = None ca_file = dont_validate_cert_chain = False key_file = None password = cert_file = /home/gcecchi/ovirt-f18engine.cer cert_file seems not to work because I get $ ovirt-shell -c Password: error: server CA certificate file must be specified for SSL secured connection. I presume referring to https://bugzilla.redhat.com/show_bug.cgi?id=960983 still in verified state $ ovirt-shell -c -A /home/gcecchi/ovirt-f18engine.cer Password: error: [Errno 336265225] _ssl.c:351: error:140B0009:SSL routines:SSL_CTX_use_PrivateKey_file:PEM lib ++++++++++++++++++++++++++++++++++++++++++ Welcome to oVirt shell ++++++++++++++++++++++++++++++++++++++++++ [oVirt shell (disconnected)]# exit If I change .ovirtshellrc contents with cert_file = and run $ ovirt-shell -c -A /home/gcecchi/ovirt-f18engine.cer Password: I get error: _ssl.c:291: Both the key & certificate files must be specified What I'm doing wrong? Gianluca

2 5

[Users] 3.3.1 node isos?
by Paul Jansen 27 Nov '13

27 Nov '13

---1504104896-265891591-1385442502=:279 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Are the 3.3.1 node isos that Fabian mentionedlate last week available for d= ownload yet?=0AI've had a look around resources.ovirt.org but can't see any= thing yet.=0A ---1504104896-265891591-1385442502=:279 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: quoted-printable <html><body><div style=3D"color:#000; background-color:#fff; font-family:ti= mes new roman, new york, times, serif;font-size:12pt"><div>Are the 3.3.1 no= de isos that Fabian mentioned<span> late last week available for download y= et?</span></div><div style=3D"color: rgb(0, 0, 0); font-size: 16px; font-fa= mily: times new roman,new york,times,serif; background-color: transparent; = font-style: normal;"><span>I've had a look around resources.ovirt.org but c= an't see anything yet.</span></div><div style=3D"color: rgb(0, 0, 0); font-= size: 16px; font-family: times new roman,new york,times,serif; background-c= olor: transparent; font-style: normal;"><span><br></span></div></div></body= ></html> ---1504104896-265891591-1385442502=:279--

2 1

[Users] gluster storage
by tristano82＠libero.it 27 Nov '13

27 Nov '13

Hello everybody, i'm successful using ovirt with 16 physical node, in a FC cluster with a very BIG dell compellent (and so expensive) enterprise storage ;) I'm researching a new architecture for a new cluster, and i want to understand more better the glusterFS integration in ovirt. As i understand you have to install a normal physical node, with also the glusterFS package… right ? after that you have to create a new cluster in ovirt , new datacenter and put in this new node. in that datacenter you can create a new data domain ( glusterFS ) that reside on that host. right ? and… after that ? ok i have 1 node that are also my " storage ", and if i want to all more compute node ? … every new compute node are a new " brick " for glusterFS so i can expand/redundant the first one ? i don't have the architecture very clear in my mind, and the documentation don't clarify the final architecture for this type of usage. Thanks for help guys Luke

1 0

[Users] Building ovirt-guest-agent is destroying my VM!
by Blaster 27 Nov '13

27 Nov '13

This is a multi-part message in MIME format. --------------000505050607020100080405 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit So this has happened twice now....Running Windows 7/64 in a VM. I git cloned the ovirt windows agent and installed the 3 Python applications as instructed in the README. When I run the win-guest-agent-build-exe.bat file to create the exe, it gets to the line of: adding python27.dll as a resource to virtguestservices.exe. Then the cmd.exe window just hangs. It can not be killed, nor can any other window. The system will not shutdown, either from the Windows side or the VM side. I had to power off from the GUI. The first time this happened, the VM hung and became non-responsive. When I tried to reboot the physical machine, the physical machine would not reboot either. Had to hit the reset button to get it back. The second time this happened, ovirt was able to power off successfully, I decided to reboot the physical machine again, and again the physical machine hung shutting down and had to physically reset. Both times when I tried to start the Windows 7 VM again, ovirt refused to start it. I get the message Failed to run VM Win7-01 (User: admin@internal). So off to restore the VM for a second time.... Any explanation how Python is able to destroy a VM like that? --------------000505050607020100080405 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit <html> <head> <meta http-equiv="content-type" content="text/html; charset=ISO-8859-1"> </head> <body text="#000000" bgcolor="#FFFFFF"> So this has happened twice now....Running Windows 7/64 in a VM.<br> <br> I git cloned the ovirt windows agent and installed the 3 Python applications as instructed in the README.<br> <br> When I run the win-guest-agent-build-exe.bat file to create the exe, it gets to the line of:<br> adding python27.dll as a resource to virtguestservices.exe.<br> <br> Then the cmd.exe window just hangs.  It can not be killed, nor can any other window.<br> <br> The system will not shutdown, either from the Windows side or the VM side.  I had to power off from the GUI.<br> <br> The first time this happened, the VM hung and became non-responsive.  When I tried to reboot the physical machine, the physical machine would not reboot either.  Had to hit the reset button to get it back.<br> <br> The second time this happened, ovirt was able to power off successfully, I decided to reboot the physical machine again, and again the physical machine hung shutting down and had to physically reset.<br> <br> Both times when I tried to start the Windows 7 VM again, ovirt refused to start it.  I get the message<br> <div title="" tabindex="0" style="outline-style: none;" __gwt_cell="cell-gwt-uid-33835"> <div id="gwt-uid-3368_col2_row0">Failed to run VM Win7-01 (User: admin@internal).<br> <br> So off to restore the VM for a second time....<br> <br> Any explanation how Python is able to destroy a VM like that?<br> <br> </div> </div> <br> <br> </body> </html> --------------000505050607020100080405--

3 2

[Users] backups
by Charles 27 Nov '13

27 Nov '13

How are you folks doing your hypervisor level backups? Under ESXi I used GhettoVCB which basically took a snap shot, copied the disk image to another location, then deleted the snap. I haven't been able to find too much information on how this can be done with ovirt. I see discussions on the new backup API, but I'm not interested in spending big bucks on an enterprise backup solution for a home lab. Only discussion I saw on using snapshots for backups said don't do it because the tools don't sync memory when the snapshots are taken.

1 0