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[Engine-devel] Schema upgrade failure on master
by Adam Litke 05 Mar '14

05 Mar '14

Hi, I've recently rebased to master and it looks like the 03_05_0050_event_notification_methods.sql script is failing on schema upgrade. Is this a bug or am I doing something wrong? To upgrade I did the normal proceedure with my development installation: make install-dev ... ~/ovirt/bin/engine-setup Got this result in the log file: psql:/home/alitke/ovirt-**FILTERED**/share/ovirt-**FILTERED**/dbscripts/upgrade/03_05_0050_event_notification_methods.sql:10: ERROR: column "notification_method" contains null values FATAL: Cannot execute sql command: --file=/home/alitke/ovirt-**FILTERED**/share/ovirt-**FILTERED**/dbscripts/upgrade/03_05_0050_event_notification_methods.sql 2014-03-03 17:20:34 DEBUG otopi.context context._executeMethod:152 method exception Traceback (most recent call last): File "/usr/lib/python2.7/site-packages/otopi/context.py", line 142, in _executeMethod method['method']() File "/home/alitke/ovirt-**FILTERED**/share/ovirt-**FILTERED**/setup/bin/../plugins/ovirt-**FILTERED**-setup/ovirt-**FILTERED**/db/schema.py", line 280, in _misc osetupcons.DBEnv.PGPASS_FILE File "/usr/lib/python2.7/site-packages/otopi/plugin.py", line 451, in execute command=args[0], RuntimeError: Command '/home/alitke/ovirt-**FILTERED**/share/ovirt-**FILTERED**/dbscripts/schema.sh' failed to execute -- Adam Litke

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[Engine-devel] [ATN][devenv] update for otopi
by Alon Bar-Lev 05 Mar '14

05 Mar '14

Hello All, I would like to ask you to update your otopi package on your development machines to at least otopi-1.2.0_0.7. It is much closer to what we are going to release and will avoid many unrelated errors within log file due to a change in engine that soon to be applied. Please also notice that the nightly repository was modified recently and it is now changed place and was split here[1] and here[2], so it is a good opportunity to modify this as well in your /etc/yum.repo.d and have them both, dropping the old nightly. Thank you, Alon [1] http://resources.ovirt.org/pub/ovirt-snapshot/ [2] http://resources.ovirt.org/pub/ovirt-snapshot-static/

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[Engine-devel] [ANN] oVirt 3.3.4 release
by Sandro Bonazzola 04 Mar '14

04 Mar '14

The oVirt development team is pleased to announce the general availability of oVirt 3.3.4 as of March 4th 2014. This release solidifies oVirt as a leading KVM management application and open source alternative to VMware vSphere. oVirt is available now for Fedora 19 and Red Hat Enterprise Linux 6.5 (or similar). This release of oVirt includes numerous bug fixes. See the release notes [1] for a list of the new features and bugs fixed. The existing repository ovirt-stable has been updated for delivering this release without the need of enabling any other repository. A new oVirt Node build is also available [2]. [1] http://www.ovirt.org/OVirt_3.3.4_release_notes [2] http://resources.ovirt.org/releases/3.3.4/iso/ovirt-node-iso-3.0.4-1.0.2014… -- Sandro Bonazzola Better technology. Faster innovation. Powered by community collaboration. See how it works at redhat.com

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[Engine-devel] oVrit 3.4.0 branch created
by Sandro Bonazzola 04 Mar '14

04 Mar '14

Hi, as announced yesterday the new branch ovirt-engine-3.4.0 branch has been created from 3.4. Branch commit was: * 9ab9f01 - (origin/ovirt-engine-3.4) core: Remove error messages from log when adding host <lzelkha(a)redhat.com> Only critical fixes will be accepted on ovirt-engine-3.4.0 branch. Thanks, -- Sandro Bonazzola Better technology. Faster innovation. Powered by community collaboration. See how it works at redhat.com

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[Engine-devel] python docs in wiki up to date?
by Sven Kieske 04 Mar '14

04 Mar '14

Hi, is this still state of the art? http://www.ovirt.org/Testing/PythonApi If not I could update it myself if you provide me with the necessary information. Thanks -- Mit freundlichen Grüßen / Regards Sven Kieske Systemadministrator Mittwald CM Service GmbH & Co. KG Königsberger Straße 6 32339 Espelkamp T: +49-5772-293-100 F: +49-5772-293-333 https://www.mittwald.de Geschäftsführer: Robert Meyer St.Nr.: 331/5721/1033, USt-IdNr.: DE814773217, HRA 6640, AG Bad Oeynhausen Komplementärin: Robert Meyer Verwaltungs GmbH, HRB 13260, AG Bad Oeynhausen

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[Engine-devel] Asynchronous tasks for live merge
by Adam Litke 03 Mar '14

03 Mar '14

Hi all, As part of our plan to support live merging of VM disk snapshots it seems we will need a new form of asynchronous task in ovirt-engine. I am aware of AsyncTaskManager but it seems to be limited to managing SPM tasks. For live merge, we are going to need something called VmTasks since the async command can be run only on the host that currently runs the VM. The way I see this working from an engine perspective is: 1. RemoveSnapshotCommand in bll is invoked as usual but since the VM is found to be up, we activate an alternative live merge flow. 2. We submit a LiveMerge VDS Command for each impacted disk. This is an asynchronous command which we need to monitor for completion. 3. A VmJob is inserted into the DB so we'll remember to handle it. 4. The VDS Broker monitors the operation via an extension to the already collected VmStatistics data. Vdsm will report active Block Jobs only. Once the job stops (in error or success) it will cease to be reported by vdsm and engine will know to proceed. 5. When the job has completed, VDS Broker raises an event up to bll. Maybe this could be done via VmJobDAO on the stored VmJob? 6. Bll receives the event and issues a series of VDS commands to complete the operation: a) Verify the new image chain matches our expectations (the snap is no longer present in the chain). b) Delete the snapshot volume c) Remove the VmJob from the DB Could you guys review this proposed flow for sanity? The main conceptual gaps I am left with concern #5 and #6. What is the appropriate way for VDSBroker to communicate with BLL? Is there an event mechanism I can explore or should I use the database? I am leaning toward the database because it is persistent and will ensure #6 gets completed even if engine is restarted somewhere in the middle. For #6, is there an existing polling / event loop in bll that I can plug into? Thanks in advance for taking the time to think about this flow and for providing your insights! -- Adam Litke

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[Engine-devel] Install rhevm-guest-agent on SLES guest
by Vikas Kokare 03 Mar '14

03 Mar '14

We want to install the rhevm-guest-agent package on a virtual machine with Suse Linux as the guest OS. The RHEVM 3.2 documentation provides install instructions for RHEL and Windows guests but not for Suse Linux. This agent is important to monitor virtual resources on guest machines, hence the need. How can this be done?

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[Engine-devel] oVirt 3.4.0 branch creation
by Sandro Bonazzola 03 Mar '14

03 Mar '14

Hi, we're going to create ovirt-engine-3.4.0 branch tomorrow morning 09:00 UTC. oVirt 3.4.1 development will continue on ovirt-engine-3.4 branch. Critical fixes for oVirt 3.4.0 GA will need to be pushed to 3.4.0 branch too starting tomorrow morning 09:00 UTC. Thanks, -- Sandro Bonazzola Better technology. Faster innovation. Powered by community collaboration. See how it works at redhat.com

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[Engine-devel] oVirt February 2014 Updates
by Itamar Heim 03 Mar '14

03 Mar '14

1. Releases - oVirt 3.3.3 was released early in the month: http://www.ovirt.org/OVirt_3.3.3_release_notes - oVirt 3.3.4 about to release. http://www.ovirt.org/OVirt_3.3.4_release_notes - oVirt 3.4.0 about to release! 2. Events - Leonardo Vaz is organizing ovirt attendance at FISL15, the largest FOSS conference in LATAM which will happen from 7th to 10th of May in Porto Alegre, Brazil: http://softwarelivre.org/fisl15 - Allon Mureinik gave a presentation on DR with oVirt at devconf.cz http://www.slideshare.net/AllonMureinik/dev-conf-ovirt-dr - oVirt workshop in korea slides (korean) http://www.slideshare.net/rogan/20140208-ovirtkorea-01 https://www.facebook.com/groups/ovirt.korea - Rogan also presented oVirt integration with OpenStack in OpenStack day in Korea http://alturl.com/m3jnx - Pat Pierson posted on basic network setup http://izen.ghostpeppersrus.com/setting-up-networks/ - Fosdem 2014 sessions (slides and videos) are at: http://www.ovirt.org/FOSDEM_2014 - and some at Infrastructure.Next Ghent the week after forsdem. 3. oVirt Activity (software) - oVirt Jenkins plugin by Dustin Kut Moy Cheung to control VM slaves managed by ovirt/RHEV https://github.com/thescouser89/ovirt-slaves-plugin - Opaque oVirt/RHEV/Proxmox client and source code released https://play.google.com/store/apps/details?id=com.undatech.opaque - great to see the NUMA push from HP: http://www.ovirt.org/Features/NUMA_and_Virtual_NUMA http://www.ovirt.org/Features/Detailed_NUMA_and_Virtual_NUMA 4. oVirt Activity (blogs, preso's) - oVirt's has been accepted as a mentoring project for the Google Summer of Code 2014. - Oved Ourfali posted on "Importing Glance images as oVirt templates" http://alturl.com/h7xid - v2v had seen many active discussions. here's a post by Jon Archer on how to Import regular kvm image to oVirt or RHEV http://jonarcher.info/2014/02/import-regular-kvm-image-ovirt-rhev/ - great reviews on amazon.com for "Getting Started with oVirt 3.3" http://alturl.com/5rk2p - oVirt Deep Dive 3.3 slides (Chinese) http://www.slideshare.net/mobile/johnwoolee/ovirt-deep-dive# - oVirt intro video (russian) http://alturl.com/it546 - how to install oVirt 3.3 on CentOS 6.5 http://www.youtube.com/watch?v=5i5ilSKsmbo 5. Related - NetApp GA'd their Virtual Storage Console for RHEV, which is implemented as an oVirt UI plugin (and then some) http://captainkvm.com/2014/02/vsc-for-rhev-is-ga-today/#more-660

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[Engine-devel] Usage of Dynamic Queries
by Liran Zelkha 03 Mar '14

03 Mar '14

Hi All, As part of an ongoing effort to improve oVirt performance, we're trying to reduce the number of Dynamic Queries usage in the code, and replace it with Postgres stored procedures. You wouldn't believe the performance gain. Please consider before making use of the Dynamic Queries feature - it should ONLY be used for places where users can enter search queries - and not for any other usage. Thanks. Liran

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