February 2012 - Users - oVirt List Archives

[Users] some ovirt questions
by hai wu 29 Feb '12

29 Feb '12

1. For ovirt, and future rhev, what's the recommended way going forward: ovirt node vs vsdm? 2. For ovirt, and future rhev, libvirt would be supported i think, what's the recommended way in terms of API going forward? libvirt API or REST API? I am not sure what's the difference between these 2. My understanding is libvirt might only be good for one physical host, and REST API would be good for the whole cluster, is this the case?

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[Users] ovirt-shell failes to connect
by wdh＠dds.nl 29 Feb '12

29 Feb '12

Starting ovirt-shell failes to connect: ovirt-shell -c -l localhost:8080/api -u admin -p xxxx -c error: 'NoneType' object has no attribute 'rfind' ++++++++++++++++++++++++++++++++++++++++++ Welcome to oVirt shell ++++++++++++++++++++++++++++++++++++++++++ rpm -qi ovirt-engine-cli Name : ovirt-engine-cli Version : 2.0 Release : 2.fc16 Architecture: noarch Install Date: Tue 28 Feb 2012 12:33:23 PM CET Group : Development/Libraries Size : 639525 License : ASL 2.0 Signature : (none) Source RPM : ovirt-engine-cli-2.0-2.fc16.src.rpm Build Date : Sun 19 Feb 2012 02:04:05 PM CET Build Host : nott16.eng.lab.tlv.redhat.com Relocations : (not relocatable) URL : http://ovirt.org Summary : oVirt Engine Command Line Interface Description : The command line interface for oVirt-Engine. Anyone?

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[Users] Remove and Add host does not work
by Deepak C Shetty 28 Feb '12

28 Feb '12

Hi, I had a host managed via OE, completely working fine. Was even able to create and run VMs off it. I tried removing the host from the OE (put host into maint. mode and then remove) and when i re-discover the same host, OE just keeps seeing it as Non-responsive. I am able to ssh into the host and see that none of the vdsm processes have been started. I tried doing "Confirm host has been rebooted" on the OE, did not help. I tried putting host into maint. mode and re-activating the host, just doesn't help I waited for ~45 mins thinking OE might connect to the host, start vdsm and get me the Up status but it failed. Do i need to manually start vdsm in such a scenario on the host ? Are there ways or methods to have OE forcibly start vdsm on the host ? thanx, deepak

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Re: [Users] Fwd: Re: Using virsh on the node
by Doron Fediuck 28 Feb '12

28 Feb '12

> Subject: Re: [Users] Using virsh on the node > Date: Mon, 27 Feb 2012 20:25:55 +0200 > From: Itamar Heim <iheim(a)redhat.com> > To: Dan Yasny <dyasny(a)redhat.com> > CC: users(a)ovirt.org > > On 02/27/2012 06:34 PM, Dan Yasny wrote: >> >> >> ----- Original Message ----- >>> From: "Nathan Stratton"<nathan(a)robotics.net> >>> To: "Dan Yasny"<dyasny(a)redhat.com> >>> Cc: users(a)ovirt.org, "Andrew Cathrow"<acathrow(a)redhat.com> >>> Sent: Monday, 27 February, 2012 4:13:54 PM >>> Subject: Re: [Users] Using virsh on the node >>> >>> On Mon, 27 Feb 2012, Dan Yasny wrote: >>> >>>> So the engine is a VM in that same cluster, along with the VMs it >>>> manages? >>> >>> Yes, the only thing I have not been able to figure out is how to let >>> the >>> ovirt-engine know that ovirt-engine is running. :) I thought that it >>> would >>> see via libvirt, but it does not. I also tried setting it in the db, >>> but >>> it keeps getting cleared. Any idea on how to let ovirt-engine know >>> that a >>> host has been started manually? >> >> Seriously, not a good idea. The Engine is supposed to be looking at the setup, and not be in the setup, where it may be affected by the problems that might occur to the setup. >> I'm pretty sure there's lots of though being devoted to removing this limitation, but when we say it's a bad idea, it really is, it's not like we simply want you to run an extra machine > > Doron - this reminds me of the all-in-one discussion. what was the > resolution on flagging the node as a node running an engine VM (even > without engine knowing about its own VM) > Sorry for breaking the thread, technical issues. Currently we handle standard platforms (ie- not the node), by using the all-in-one rpm which is currently in work. So when you add a host via the REST you may specify not to reboot it, and you should not specify power-management from properties, which will make sure fencing will not occur. Other than that there's no specific awareness to the host being an angine-core host. >> >>> >>>> What do you use for storage? >>> >> >> That's easier than block storage, but still, what happens if the host where the engine was running failed - who would update VM statuses and restart the HA VMs? >> >>> NFS: >>> >>> mount 10.13.0.4:/images/ /rhev/data-center/mnt/10.13.0.4:_images >>> mount 10.13.0.4:/iso/ /rhev/data-center/mnt/10.13.0.4:_iso >>> >>>> Dan Yasny >>>> Red Hat Israel >>>> +972 9769 2280 >>> >>>> <> >>> Nathan Stratton CTO, BlinkMind, Inc. >>> nathan at robotics.net nathan at >>> blinkmind.com >>> http://www.robotics.net >>> http://www.blinkmind.com >>> -- /d "All computers wait at the same speed."

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[Users] Error taking snapshot
by Deepak C Shetty 28 Feb '12

28 Feb '12

This is a multi-part message in MIME format. --------------060107010001080800090506 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Hi, I have a DC which is FC based and i already have a virtual disk and booting VM off it. When i try to take a snapshot of this, it gives me a msg on OE side ..something like.. Error: vm-backed-by-fc-storage: * Cannot ${action} ${type}. Same action in progress. From OE log.. this is what i found relevant... 2012-02-28 21:18:08,990 INFO [org.ovirt.engine.core.bll.CreateAllSnapshotsFromVmCommand] (http--0.0.0.0-8080-1) Failed to Acquire Lock to object EngineLock [exclusiveLocks= key: org.ovirt.engine.core.bll.CreateAllSnapshotsFromVmCommand value: 99df0240-928b-47eb-a944-7c44ce7e9ece , sharedLocks= ] How can i proceed from here ? --------------060107010001080800090506 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <meta http-equiv="content-type" content="text/html; charset=ISO-8859-1"> </head> <body text="#000000" bgcolor="#ffffff"> Hi,     I have a DC which is FC based and i already have a virtual disk and booting VM off it. When i try to take a snapshot of this, it gives me a msg on OE side ..something like.. Error: vm-backed-by-fc-storage: <ul style="margin-top: 0pt;"> <li>Cannot ${action} ${type}. Same action in progress.</li> </ul> From OE log.. this is what i found relevant... 2012-02-28 21:18:08,990 INFO  [org.ovirt.engine.core.bll.CreateAllSnapshotsFromVmCommand] (http--0.0.0.0-8080-1) Failed to Acquire Lock to object EngineLock [exclusiveLocks= key: org.ovirt.engine.core.bll.CreateAllSnapshotsFromVmCommand value: 99df0240-928b-47eb-a944-7c44ce7e9ece , sharedLocks= ] How can i proceed from here ? </body> </html> --------------060107010001080800090506--

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[Users] engine setup failes using seprate /usr partition
by wdh＠dds.nl 28 Feb '12

28 Feb '12

Running engine-setup fails when using a seperate /var partion (seperated from /) In /var/log/ovirt-engine/engine-setup_xxxxxxx.log: 2012-02-18 14:46:16::ERROR::engine-setup::614::root:: Traceback (most recent call last): File "/usr/bin/engine-setup", line 612, in _linkHttpParams os.link(target, link) OSError: [Errno 18] Invalid cross-device link 2012-02-18 14:46:16::ERROR::engine-setup::728::root:: Traceback (most recent call last): File "/usr/bin/engine-setup", line 712, in _editRootWar _linkHttpParams() File "/usr/bin/engine-setup", line 615, in _linkHttpParams raise Exception(output_messages.ERR_EXP_FAILED_ROOT_WAR) Exception: Could not copy ROOT.war configuration into Jboss profile The installer tries to make a hard link to somewhere is /usr to /etc/ovirt-engine, which is not possible since /usr is on a separate disk partition. One can solve it to move /etc/overt-engine to /usr/local/etc/ovirt-engine en create a symbolic link in /etc/ I would like to report a bug, where can do this?

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[Users] How to migrate the Ovirt management server/frontend to another machine ? (what files are needed, etc)
by Morgan Cox 28 Feb '12

28 Feb '12

Hi. As we are using Fedora16 as the OS on the frontend I would like to know what files/DB's, etc are needed to migrate the management server/frontend to another machine? I ask as the support life of Fedora is not too long, so for example when FC17 is released I would like to migrate the machine to that - by migrate I mean backup and re-install. Is there any info anywhere showing what files I would need to migrate/backup to a new frontend server? - I assume its going to be a DB and several files - I would just like to know for sure. Ovirt looks really nice btw - thank you to all who made this possible. As a 2nd question - is there an ETA from when RHEL packages are going to be ready? Many regards

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[Users] LDAP SimpleAuthentication issue.
by Sharad Mishra 28 Feb '12

28 Feb '12

Hi, I am new to ovirt and LDAP. Looking at adding support for Tivoli Directory Server. Here is a small java/jndi program (not using Spring LDAP) that takes IBM intranet Id and searches the directory to return IBM serial number. ********* Hashtable env = new Hashtable(); env.put("java.naming.factory.initial", "com.sun.jndi.ldap.LdapCtxFactory"); env.put("java.naming.factory.url.pkgs", "com.ibm.jndi"); env.put("java.naming.provider.url", "ldap://<ldap-server>:389"); String dn = null; try{ InitialDirContext dirContext = new InitialDirContext(env); SearchControls constraints = new SearchControls(); String[] attr = new String[] {"uid"}; constraints.setSearchScope(SearchControls.SUBTREE_SCOPE); constraints.setReturningAttributes(attr); NamingEnumeration ne = dirContext.search("ou=<ldpap-server-name>,o=ibm.com", "(mail=" + intranetID + ")", constraints); ************** But when I try to use org.ovirt.engine.core.utils.ipa.SimpleAuthenticationCheck.java, I get a "javax.naming.AuthenticationException: [LDAP: error code 49 - Invalid Credentials]" I am issuing - ldapTemplate.search("", "", contextMapper); Where contextMapper is RHDSUserContextMapper and screenshots of ldapTemplate are attached. There may be issues with the way I have setup filter and baseDN; but that should not give AuthEx. At this time I am looking for ways to get rid of authentication exception. Also, when using simple authentication, why do I need to give password? I can run "ldapsearch -LLL "(mail=<intranetID>)" -h <ldap-server>:389 -x" without password to give me expected results. Thanks Sharad Mishra IBM

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[Users] Reports and DWH
by Xyko ( José Francisco Ribeiro Neto ) 28 Feb '12

28 Feb '12

Hi, when ovirt-engine is installed the report and dwh features and portals are also installed? If not, how do we install it? Regards, -- Xyko ( José Francisco Ribeiro Neto )

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[Users] Newly created VM will not start. Bad permissions on its virtual disk.
by Terry Phelps 28 Feb '12

28 Feb '12

I have a newly installed ovirt engine, and node. I created a new VM, gave it a virtual disk, and a network, attached my one ISO that I have out there, and tried to start it. It failed. The admin portal error messages say: 2012-Feb-27, 15:40:10 Failed to run VM oel-test (User: admin@internal). 2012-Feb-27, 15:40:10 Failed to run VM oel-test on Host oravm2. 2012-Feb-27, 15:40:10 VM oel-test is down. Exit message unable to open disk path /rhev/data-center/f465251e- 5679-11e1-ba81-97917332892e/24b70dff-549e-46a6-a863-3a158aa6e9a3/images/c07482cb-818f-47b7-97d1-1409909408bb/e1e57887-e660-4191-87a0-5eac7a44f2d7: Permission denied. 2012-Feb-27, 15:40:08 VM oel-test was started by admin@internal (Host: oravm2). When I go to the node, and check, the permissions do indeed look bad. vdsm:kvm owns everything down through /rhev/data-center/f465251e-5679-11e1-ba81-97917332892e/24b70dff-549e-46a6-a863-3a158aa6e9a3, but below that, it looks bad. Here is a "ls -l" of that last directory: # ls -l total 8 drwxr-xr-x. 2 4294967294 4294967294 4096 Feb 23 16:22 dom_md drwxr-xr-x. 3 4294967294 4294967294 4096 Feb 27 16:22 images And then the owner and group of everything below 'images' is bad, too. Can some help me determine what happened? And how to fix it?

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