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Storage questions
by Oscar Segarra 24 Nov '16

24 Nov '16

Hi, I'm planning to deploy a scalable VDI infraestructure where each phisical host can run over 100 VDIs and I'd like to deploy 10 physical hosts (1000 VDIs). In order to avoid performance problems (replicating 1000VDIs changes over gluster network I think can provoque performance problems) I have thought to use local storage for VDI assuming that VDIs cannot be migrated between phisical hosts. ¿Is my worry founded in terms of performance? ¿Is it possible to utilize local SSD storage for VDIs? I'd like to configure a gluster volume for backup on rotational disks (tiered+replica 2+ stripe=2) just to provide HA if a physical host fails. ¿Is it possible to use rsync for backing up VDIs? If not ¿How can I sync/backup the VDIs running on local storage on the gluster shared storage? If a physical host fails ¿How can I start the latest backup of the VDI on the shared gluster? Thanks a lot

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Recommended Ovirt Implementation on Active-Active Datacenters (Site 1 and Site2) - Same Cluster
by Rogério Ceni Coelho 24 Nov '16

24 Nov '16

Hi Ovirt Jedi´s !!! First of all, congrats about the product !!! I love Ovirt !!! I am using Ovirt 4.0.4 with 10 hosts and 58 virtual machines on two Active-Active Datacenters using two EMC Vplex + two EMC VNX5500 + eight Dell Blades + 8 Dell PowerEdge M610 and two M620 Servers. Half servers are on Site 1 and Half servers on Site 2. The same with VMs. All Sites work as one and have redundant network, storage, power, etc etc etc ... I want to know what is the best way to set that VM number 1 runs on Site 1 and VM number 2 runs on Site 2 ? On Vmware 5.1 we use DRS Group Manager and on Hyper-V we use Custom Properties on hosts and on VMs. What we use on oVirt without segregate on two different Datacenters or two different clusters ? Thanks in advance.

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expired cert for aaa
by cmc 24 Nov '16

24 Nov '16

Hi, I upgraded my engine host from 4.0.2.7 to 4.0.4 and when I attempt to login via a aaa provider I get: java.security.cert.CertificateExpiredException: NotAfter: Fri Nov 04 00:19:18 GMT 2016, What certificate is this referring to? The certificate from the aaa provider expires in 2063. It was fine until the upgrade. Thanks for any help, Cam

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How to notify cluster nodes after "engine-config --set IPTablesConfigSiteCustom..." ?
by aleksey.maksimov＠it-kb.ru 24 Nov '16

24 Nov '16

Hello oVirt guru`s ! oVirt Engine Version: 4.0.5.5-1.el7.centos I updated the configuration of the firewall on the Engine server with "engine-config --set IPTablesConfigSiteCustom...". How to notify cluster nodes (all virtualization hosts) about the changes without reboot?

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[ANN] oVirt 4.0.6 Second Release Candidate is now available
by Sandro Bonazzola 24 Nov '16

24 Nov '16

The oVirt Project is pleased to announce the availability of oVirt 4.0.6 second release candidate for testing, as of November 24th, 2016. This release is available now for: * Fedora 23 (tech preview) * Red Hat Enterprise Linux 7.2 or later * CentOS Linux (or similar) 7.2 or later This release supports Hypervisor Hosts running: * Red Hat Enterprise Linux 7.2 or later * CentOS Linux (or similar) 7.2 or later * Fedora 23 (tech preview) * oVirt Next Generation Node 4.0 This is pre-release software. Please take a look at our community page[1] to know how to ask questions and interact with developers and users. All issues or bugs should be reported via oVirt Bugzilla[2]. This pre-release should not to be used in production. This update is the second release candidate of the sixth in a series of stabilization updates to the 4.0 series. 4.0.6 brings 2 enhancements and 43 bugfixes, including 16 high or urgent severity fixes, on top of oVirt 4.0 series See the release notes [3] for installation / upgrade instructions and a list of new features and bugs fixed. Notes: * A new oVirt Live ISO is available. [4] * A new oVirt Next Generation Node will be available soon [4] * A new oVirt Engine Appliance is available for Red Hat Enterprise Linux and CentOS Linux (or similar) * Mirrors[5] might need up to one day to synchronize. Additional Resources: * Read more about the oVirt 4.0.6 release highlights: http://www.ovirt.org/release/4.0.6/ * Get more oVirt Project updates on Twitter: https://twitter.com/ovirt * Check out the latest project news on the oVirt blog: http://www.ovirt.org/blog/ [1] https://www.ovirt.org/community/ [2] https://bugzilla.redhat.com/enter_bug.cgi?classification=oVirt [3] http://www.ovirt.org/release/4.0.6/ [4] http://resources.ovirt.org/pub/ovirt-4.0-pre/iso/ [5] http://www.ovirt.org/Repository_mirrors#Current_mirrors -- Sandro Bonazzola Better technology. Faster innovation. Powered by community collaboration. See how it works at redhat.com

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GFS2 and OCFS2 for Shared Storage
by Fernando Frediani 23 Nov '16

23 Nov '16

Has anyone managed to use GFS2 or OCFS2 for Shared Block Storage between hosts ? How scalable was it and which of the two work better ? Using traditional CLVM is far from good starting because of the lack of Thinprovision so I'm willing to consider either of the Filesystems. Thanks Fernando

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OVN Provider setup issues
by Andrea Fagiani 23 Nov '16

23 Nov '16

Hi all, I've been messing around with the ovirt-ovn-provider [1] and I've run into some issues during the initial setup. I have a 5-node cluster (running the hosted-engine VA), LEGACY virtual switch; this test was done on a single host. Following the instructions from the aforementioned blog post, I have downloaded the ovirt-provider-ovn and ovirt-provider-ovn-driver rpms, and built the rpm packages for: - openvswitch (2.6.90) - openvswitch-ovn-common - openvswitch-ovn-host - openvswitch-ovn-central - python-openvswitch I set up a dedicated VM for the OVN controller, installed ovs and ovn-central, started the ovn-northd and ovirt-provider-ovn services. So far so good. I then moved on to the oVirt host and installed the above packages (minus ovn-central) as well as the ovirt-provider-ovn-driver provided, started the ovn-controller service and ran # vdsm-tool ovn-config <ovn controller IP> <host management IP> Executing the suggested checks I noticed that something didn't quite go as planned. Below is the /var/log/openvswitch/ovn-controller.log from the host machine. There are no firewalls involved (not even on the servers) and I also tried disabling SELinux but to no avail. Any ideas? Thanks, Andrea [1] http://www.ovirt.org/blog/2016/11/ovirt-provider-ovn/ 2016-11-07T14:22:09.552Z|00001|vlog|INFO|opened log file /var/log/openvswitch/ovn-controller.log 2016-11-07T14:22:09.553Z|00002|reconnect|INFO|unix:/var/run/openvswitch/db.sock: connecting... 2016-11-07T14:22:09.553Z|00003|reconnect|INFO|unix:/var/run/openvswitch/db.sock: connected 2016-11-07T14:22:09.555Z|00004|reconnect|INFO|tcp:10.100.248.11:6642: connecting... 2016-11-07T14:22:09.555Z|00005|reconnect|INFO|tcp:10.100.248.11:6642: connected 2016-11-07T14:22:09.556Z|00006|ofctrl|INFO|unix:/var/run/openvswitch/br-int.mgmt: connecting to switch 2016-11-07T14:22:09.556Z|00007|rconn|INFO|unix:/var/run/openvswitch/br-int.mgmt: connecting... 2016-11-07T14:22:09.557Z|00008|pinctrl|INFO|unix:/var/run/openvswitch/br-int.mgmt: connecting to switch 2016-11-07T14:22:09.557Z|00009|rconn|INFO|unix:/var/run/openvswitch/br-int.mgmt: connecting... 2016-11-07T14:22:09.557Z|00010|rconn|INFO|unix:/var/run/openvswitch/br-int.mgmt: connected 2016-11-07T14:22:09.557Z|00011|rconn|INFO|unix:/var/run/openvswitch/br-int.mgmt: connected 2016-11-07T14:22:09.558Z|00012|ofctrl|INFO|OpenFlow error: OFPT_ERROR (OF1.3) (xid=0x9): OFPBMC_BAD_FIELD OFPT_FLOW_MOD (OF1.3) (xid=0x9): (***truncated to 64 bytes from 240***) 00000000 04 0e 00 f0 00 00 00 09-00 00 00 00 00 00 00 00 |................| 00000010 00 00 00 00 00 00 00 00-22 00 00 00 00 00 00 00 |........".......| 00000020 ff ff ff ff ff ff ff ff-ff ff ff ff 00 00 00 00 |................| 00000030 00 01 00 04 00 00 00 00-00 04 00 b8 00 00 00 00 |................|

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Cannot remove disk error for ovirt-image-repository VMs
by Gianluca Cecchi 23 Nov '16

23 Nov '16

Hello, I am in 4.0.5 with 3 hosts, Gluster and self hosted engine. If I create a VM through iso and install OS then I can then delete the VM and its related disks without errors If I do the same creating a template (or directly a VM) using CentOS 7 Atomic Host Image in ovirt-image-repository I get these events in sequence hen I delete the VM 10:47:29 VM atomic was successfully removed. 10:47:54 VDSM hosted_engine_1 command failed: Could not remove all image's volumes 10:50:05 Refresh image list succeeded for domain(s): ovirt-image-repository (All file type) tried many times with same behavior The VM has been removed, from web admin gui All disks in "Disks" tab are marked as "OK" Any commands to check actual integrity... in db and filesystems...? Basic messages in engine.log: 2016-11-23 09:47:54,860 ERROR [org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector] (DefaultQuartzScheduler10) [53f3be13] Correlation ID: null, Call Stack: null, Custom Event ID: -1, Message: VDSM hosted_engine_1 command failed: Could not remove all image's volumes 2016-11-23 09:47:54,860 INFO [org.ovirt.engine.core.bll.tasks.SPMAsyncTask] (DefaultQuartzScheduler10) [53f3be13] SPMAsyncTask::PollTask: Polling task '555e7dd0-dc32-4cf7-be10-d469fc8b2f8d' (Parent Command 'RemoveVm', Parameters Type 'org.ovirt.engine.core.common.asynctasks.AsyncTaskParameters') returned status 'finished', result 'cleanSuccess'. 2016-11-23 09:47:54,880 ERROR [org.ovirt.engine.core.bll.tasks.SPMAsyncTask] (DefaultQuartzScheduler10) [53f3be13] BaseAsyncTask::logEndTaskFailure: Task '555e7dd0-dc32-4cf7-be10-d469fc8b2f8d' (Parent Command 'RemoveVm', Parameters Type 'org.ovirt.engine.core.common.asynctasks.AsyncTaskParameters') ended with failure: -- Result: 'cleanSuccess' -- Message: 'VDSGenericException: VDSErrorException: Failed in vdscommand to HSMGetAllTasksStatusesVDS, error = Could not remove all image's volumes', -- Exception: 'VDSGenericException: VDSErrorException: Failed in vdscommand to HSMGetAllTasksStatusesVDS, error = Could not remove all image's volumes' full files: engine.log in gzip format: https://drive.google.com/file/d/0BwoPbcrMv8mvQlVwVDlGTVEtR00/view?usp=shari… vdsm.log of related host in gzip format: https://drive.google.com/file/d/0BwoPbcrMv8mvdDFFOEhTQ3o1ZXM/view?usp=shari… supervdsm.log in gzip format https://drive.google.com/file/d/0BwoPbcrMv8mvbE5ZdXMyc0w1S1U/view?usp=shari… Gianluca

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Fedora 25 images uploaded to oVirt's image repository
by Barak Korren 23 Nov '16

23 Nov '16

The Fedora 25 images had been uploaded to oVirt's public Glance image repository. Both the Atomic image as well as the generic cloud image have been made available. To gain access to the images please select "ovirt-image-repository" from the "Storage" tab in the Web Administration console while "System" is selected in the left-hand tree. If you don't have "ovirt-image-repository" configured as an external provider in your oVirt instance, you can add it by selecting "External Providers" in the left-hand tree clicking on "Add" and filling in the following details: Name: ovirt-image-repository Description: Public Glance repository for oVirt Type: OpenStack Image Provider URL: http://glance.ovirt.org:9292 "Requires Authentication" should be checked off. -- Barak Korren bkorren(a)redhat.com oVirt Infra Team

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Hook to add firewall rules
by Claude Durocher 23 Nov '16

23 Nov '16

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