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VM poor iops
by Leo David 01 Mar '19

01 Mar '19

Hi Everyone, I am encountering the following issue on a single instance hyper-converged 4.2 setup. The following fio test was done: fio --randrepeat=1 --ioengine=libaio --direct=1 --gtod_reduce=1 --name=test --filename=test --bs=4k --iodepth=64 --size=4G --readwrite=randwrite The results are very poor doing the test inside of a vm with a prealocated disk on the ssd store: ~2k IOPS Same test done on the oVirt node directly on the mounted ssd_lvm: ~30k IOPS Same test done, this time on the gluster mount path: ~20K IOPS What could be the issue that the vms have this slow hdd performance ( 2k on ssd !! )? Thank you very much ! -- Best regards, Leo David

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oVirt - Unable to delete VM snapshots
by dean＠datacom.ca 28 Feb '19

28 Feb '19

Unable to delete VM snapshots. Error messages and log info below. Running oVirt VM 4.2.8.2-1.el7, I haven't been able to find good documentation on how to fix. Can someone point me in the right direction? Thank you, ... Dean Feb 28, 2019, 3:32:34 PM Failed to delete snapshot 'Centos7_20190120' for VM 'n2_Centos7'. Feb 28, 2019, 3:32:28 PM VDSM n1 command HSMGetAllTasksStatusesVDS failed: Volume does not exist: (u'b2391a0b-c9e5-4dfe-9551-1e1f25c5c622',) Feb 28, 2019, 3:32:22 PM VDSM n2 command MergeVDS failed: Merge failed The VM has snapshot(s) with disk(s) in illegal status. Please don't shutdown the vm before successfully retrying the snapshot delete. engine.log 2019-02-28 15:32:33,420-05 ERROR [org.ovirt.engine.core.bll.snapshots.RemoveSnapshotSingleDiskLiveCommand] (EE-ManagedThreadFactory-engineScheduled-Thread-39) [f702317d-87cc-41dd-bcb2-12c6a2a93f10] Merging o f snapshot '3ddab9e6-a6ce-40d6-9ec6-815251471c5f' images 'fb974fb8-99d3-4a69-9f4e-096e30b85749'..'b2391a0b-c9e5-4dfe-9551-1e1f25c5c622' failed. Images have been marked illegal and can no longer be previewed or reverted to. Please retry Live Merge on the snapshot to complete the operation. 2019-02-28 15:32:33,429-05 ERROR [org.ovirt.engine.core.bll.snapshots.RemoveSnapshotSingleDiskLiveCommand] (EE-ManagedThreadFactory-engineScheduled-Thread-39) [f702317d-87cc-41dd-bcb2-12c6a2a93f10] Ending co mmand 'org.ovirt.engine.core.bll.snapshots.RemoveSnapshotSingleDiskLiveCommand' with failure. 2019-02-28 15:32:33,578-05 INFO [org.ovirt.engine.core.bll.ConcurrentChildCommandsExecutionCallback] (EE-ManagedThreadFactory-engineScheduled-Thread-39) [f702317d-87cc-41dd-bcb2-12c6a2a93f10] Command 'Remov eSnapshot' id: '2243e15a-2569-498c-b0f8-de345321ba2f' child commands '[2e8dccfe-1c17-40ec-9f98-84f61863e450]' executions were completed, status 'FAILED' 2019-02-28 15:32:34,773-05 ERROR [org.ovirt.engine.core.bll.snapshots.RemoveSnapshotCommand] (EE-ManagedThreadFactory-engineScheduled-Thread-10) [f702317d-87cc-41dd-bcb2-12c6a2a93f10] Ending command 'org.ovi rt.engine.core.bll.snapshots.RemoveSnapshotCommand' with failure. 2019-02-28 15:32:35,023-05 ERROR [org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector] (EE-ManagedThreadFactory-engineScheduled-Thread-10) [f702317d-87cc-41dd-bcb2-12c6a2a93f10] EVENT_ID: USER_REMOVE_SNAPSHOT_FINISHED_FAILURE(357), Failed to delete snapshot 'Centos7_20190120' for VM 'n2_Centos7'. vdsm.log 2019-02-28 15:32:22,251-0500 INFO (jsonrpc/7) [jsonrpc.JsonRpcServer] RPC call Host.getStats succeeded in 0.02 seconds (__init__:573) 2019-02-28 15:32:22,326-0500 INFO (jsonrpc/0) [root] /usr/libexec/vdsm/hooks/after_get_caps/50_openstacknet: rc=0 err= (hooks:110) 2019-02-28 15:32:22,449-0500 INFO (jsonrpc/6) [api.host] START getAllVmStats() from=::ffff:192.168.1.10,48074 (api:46) 2019-02-28 15:32:22,452-0500 INFO (jsonrpc/6) [api.host] FINISH getAllVmStats return={'status': {'message': 'Done', 'code': 0}, 'statsList': (suppressed)} from=::ffff:192.168.1.10,48074 (api:52) 2019-02-28 15:32:22,453-0500 INFO (jsonrpc/6) [jsonrpc.JsonRpcServer] RPC call Host.getAllVmStats succeeded in 0.00 seconds (__init__:573) 2019-02-28 15:32:22,669-0500 INFO (jsonrpc/4) [api.virt] START merge(drive={u'imageID': u'96fbec76-c518-4010-8988-46b3c3172f09', u'volumeID': u'f7f1a3ec-d936-4482-8ec9-af2b3990b111', u'domainID': u'34af4473 -0779-42a0-8b97-e1ccc725fd60', u'poolID': u'5a3025a3-005f-03d4-0333-000000000382'}, baseVolUUID=u'fb974fb8-99d3-4a69-9f4e-096e30b85749', topVolUUID=u'b2391a0b-c9e5-4dfe-9551-1e1f25c5c622', bandwidth=u'0', jo bUUID=u'0b551b37-a6ee-4ac7-a004-2d410eaa8304') from=::ffff:192.168.1.10,48074, flow_id=f702317d-87cc-41dd-bcb2-12c6a2a93f10, vmId=a9082c6d-038e-4eb5-8436-69f93839a2ec (api:46) 2019-02-28 15:32:22,693-0500 INFO (jsonrpc/0) [root] /usr/libexec/vdsm/hooks/after_get_caps/openstacknet_utils.py: rc=0 err= (hooks:110) 2019-02-28 15:32:22,730-0500 ERROR (jsonrpc/4) [virt.vm] (vmId='a9082c6d-038e-4eb5-8436-69f93839a2ec') merge: Cannot find volume b2391a0b-c9e5-4dfe-9551-1e1f25c5c622 in drive vda's volume chain (vm:5944) 2019-02-28 15:32:22,731-0500 INFO (jsonrpc/4) [api.virt] FINISH merge return={'status': {'message': 'Merge failed', 'code': 52}} from=::ffff:192.168.1.10,48074, flow_id=f702317d-87cc-41dd-bcb2-12c6a2a93f10, vmId=a9082c6d-038e-4eb5-8436-69f93839a2ec (api:52)

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[ANN] oVirt 4.3.1 is now generally available
by Sandro Bonazzola 28 Feb '19

28 Feb '19

The oVirt Project is pleased to announce the general availability of oVirt 4.3.1, as of February 26th, 2019. This update is the first in a series of stabilization updates to the 4.3 series. This release is available now on x86_64 architecture for: * Red Hat Enterprise Linux 7.6 or later * CentOS Linux (or similar) 7.6 or later This release supports Hypervisor Hosts on x86_64 and ppc64le architectures for: * Red Hat Enterprise Linux 7.6 or later * CentOS Linux (or similar) 7.6 or later * oVirt Node 4.3 (available for x86_64 only) Experimental tech preview for x86_64 and s390x architectures for Fedora 28 is also included. See the release notes [1] for installation / upgrade instructions and a list of new features and bugs fixed. Notes: - oVirt Appliance is available for EL7 only - oVirt Node is available for EL7 only [2] - Fedora 28 based appliance and node couldn't be built due to a bug in Lorax (the tool used to build the images) affecting Fedora 28 and still pending a build from Fedora project. oVirt Node has been updated including: - oVirt 4.3.1: http://www.ovirt.org/release/4.3.1/ - ansible-2.7.8: https://github.com/ansible/ansible/blob/stable-2.7/changelogs/CHANGELOG-v2.… Relevant EPEL Errata included: - FEDORA-EPEL-2019-5f2f93029f security update in Fedora EPEL 7 for ansible ( https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2019-5f2f93029f ) Relevant CentOS Errata included: - CESA-2019:0231 Important CentOS 7 spice Security Update ( https://lists.centos.org/pipermail/centos-announce/2019-February/023192.html ) - CESA-2019:0368 Important CentOS 7 systemd Security Update ( https://lists.centos.org/pipermail/centos-announce/2019-February/023202.html ) Additional Resources: * Read more about the oVirt 4.3.1 release highlights: http://www.ovirt.org/release/4.3.1/ * 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] http://www.ovirt.org/release/4.3.1/ [2] http://resources.ovirt.org/pub/ovirt-4.3/iso/ -- SANDRO BONAZZOLA MANAGER, SOFTWARE ENGINEERING, EMEA R&D RHV Red Hat EMEA <https://www.redhat.com/> sbonazzo(a)redhat.com <https://red.ht/sig>

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non-redhat version of ovirt-host-deploy
by ivan.kabaivanov＠gmail.com 28 Feb '19

28 Feb '19

Hi, I'm trying to get ovirt working on Linux From Scratch. So far so good, I can build and install it, and engine-setup also works fine. Now, I'm at the last stage, configuring it. And this is where I hit serious trouble: ovirt-host-deploy requires dnf/yum/rpm. But since I'm not running a redhat-based distro, I have none of those. Short of reading the source code, what are the steps I need to manually perform to get a working host? Thanks, IvanK.

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reinstall centos node (ovirt 4.2.7) fails due missing dependency on librbd1
by Mike Lykov 28 Feb '19

28 Feb '19

Hi All! I'm using ovirt-release42-4.2.7.1-1.el7.noarch centos-release-7-5.1804.5.el7.centos.x86_64 And HCI glusterfs deployment (no ceph). And yesterday I wanted an add hosted engine deploy on some node. It requires to enable maintenance mode, reinstall node with "hosted engine = deploy" config (in webui). I made it, but reinstall fails. In logs I see (not full list): ... Feb 27 16:35:39 Updated: libvirt-daemon-4.5.0-10.el7_6.4.x86_64 Feb 27 16:35:39 Updated: libvirt-daemon-driver-storage-core-4.5.0-10.el7_6.4.x86_64 Feb 27 16:36:04 Updated: libvirt-daemon-driver-storage-rbd-4.5.0-10.el7_6.4.x86_64 Feb 27 16:36:04 Updated: libvirt-daemon-driver-storage-disk-4.5.0-10.el7_6.4.x86_64 Feb 27 16:36:04 Updated: libvirt-daemon-driver-storage-4.5.0-10.el7_6.4.x86_64 After it # rpm -q librbd1 librbd1-0.94.5-2.el7.x86_64 фев 27 16:36:51 ovirtnode5.miac systemd[1]: Starting Virtualization daemon... фев 27 16:36:51 ovirtnode5.miac libvirtd[537]: 2019-02-27 12:36:51.338+0000: 537: info : libvirt version: 4.5.0, package: 10.el7_6.4 (CentOS BuildSystem <http://bugs.centos.org>, 2019-01-29-17:31:22, x86-01.bsys.centos.org) фев 27 16:36:51 ovirtnode5.miac libvirtd[537]: 2019-02-27 12:36:51.338+0000: 537: info : hostname: ovirtnode5.miac фев 27 16:36:51 ovirtnode5.miac libvirtd[537]: 2019-02-27 12:36:51.338+0000: 537: error : virModuleLoadFile:53 : внутренняя ошибка: Failed to load module '/usr/lib64/libvirt/storage-backend/libvirt_storage_backend_rbd.so': /usr/lib64/libv irt/storage-backend/libvirt_storage_backend_rbd.so: undefined symbol: rbd_diff_iterate2 фев 27 16:36:51 ovirtnode5.miac systemd[1]: libvirtd.service: main process exited, code=exited, status=3/NOTIMPLEMENTED фев 27 16:36:51 ovirtnode5.miac systemd[1]: Failed to start Virtualization daemon. There is a old bugs like https://bugzilla.redhat.com/show_bug.cgi?id=1316911 or new posts like http://dreamcloud.artark.ca/libvirtd-failure-after-latest-upgrade-in-rhel-c… Obviously, the libvirt* rpms are updated, but librbd* not. But why? Why libvirt packages are not strictly dependenced on all required package/lib versions? libvirt-daemon-driver-storage-rbd must require exactly that librbd version that can work with, i think. -- Mike

1 0

Deploying Self-Hosted Engine Using Cockpit 4.3 not working
by kiv＠intercom.pro 27 Feb '19

27 Feb '19

Hi all. Fresh install host node 4.3. Install ok. Open web ui, and start deploying Self-Hosted Engine. When i add ISCSI storage - i get error: Retrieval of iSCSI targets failed. My iscsi target up and work.

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Feature: Hosted engine VM management
by Roy Golan 27 Feb '19

27 Feb '19

Hi all, Upcoming in 3.6 is enhancement for managing the hosted engine VM. In short, we want to: * Allow editing the Hosted engine VM, storage domain, disks, networks etc * Have a shared configuration for the hosted engine VM * Have a backup for the hosted engine VM configuration please review and comment on the wiki below: http://www.ovirt.org/Hosted_engine_VM_management Thanks, Roy

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Facing issues with settings up shared data-center
by Jinesh Ks 27 Feb '19

27 Feb '19

Host Node3 cannot access the Storage Domain(s) <UNKNOWN> attached to the Data Center Default. Setting Host state to Non-Operational. VDSM Node3 command ConnectStoragePoolVDS failed: Cannot find master domain: u'spUUID=a171b7d6-2c10-11e9-acee-10604b98fee8, msdUUID=bb73461e-02a2-45a6-85fa-5e39d860485c' The error message for connection 10.0.10.11:/exports/data returned by VDSM was: Problem while trying to mount target ----------- we have 3 Nodes, using NFS for storage domain... using shared data center. Anybody can help me?

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game
by shubhamrock19998＠gmail.com 27 Feb '19

27 Feb '19

I really want to spend my time with this game because https://onlinecheckers.net here so more things available.

1 0

unable to put ovirt host in maintenance
by slaurencelle＠hotmail.com 27 Feb '19

27 Feb '19

Hello I'm trying to put one of my ovirt host ( whcih is also the ovirt-engine) into maintenance mode but i receive this error: Error while executing action: Cannot switch Host OvirtHome to Maintenance mode. Image transfer is in progress for the following (5) disks: b6338adf-a43b-4051-9bc0-7bb436876b5e, b8aa8ac8-e4bf-4a31-bd6f-02a33e04f8c6, f8548d7b-40c4-4d1e-9b21-8d4aa4966fff, 3626520b-ba03-452a-833f-4e4d48215047, 4b3242d0-73f6-46c5-99ac-9bac86b4ab41 Please wait for the operations to complete and try again I start does transfert from command line ans they failed, how can i delete the reference to those from the linux command line ? My ovirt version is the 4.3 (latest one) I'm running it on centos 7.6 with latest update Hope someone can help me ! Best regards stephane

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