Re: [ovirt-users] Cannot add host to cluster - install fails
On 06. 07. 2015 11:24, Yedidyah Bar David wrote: - Original Message - From: Mitja Mihelič ftp-ad...@arnes.si To: Yedidyah Bar David d...@redhat.com Cc: users@ovirt.org Sent: Monday, July 6, 2015 11:49:28 AM Subject: Re: [ovirt-users] Cannot add host to cluster - install fails On 05/07/15 13:40, Yedidyah Bar David wrote: - Original Message - From: Mitja Miheličmitja.mihe...@arnes.si To:users@ovirt.org Sent: Friday, July 3, 2015 2:12:28 PM Subject: [ovirt-users] Cannot add host to cluster - install fails Dear all, We are running the following setup: ovirt-engine host: - CentOS release 6.6 - ovirt-engine-3.5.3.1-1.el6.noarch node: - CentOS Linux release 7.1.1503 - vdsm-4.16.20-0.el7.centos.x86_64 While adding a new host to our cluster the package installations fail. I have attached a piece of engine.log and a full ovirt-host-deploy* log from the node. Why is is happening? Help would be very much appreciated. Perhaps an older ovirt-host-deploy package? You seem to have 1.2.3, while engine 3.5.3 requires at least 1.3.0 - not sure how this happened. Can you try to upgrade? Thanks and best regards, This is interesting. The ovirt-host-deploy package version on the engine host is ovirt-host-deploy-1.3.1-1.el6.noarch. I tried to install ovirt-host-deploy manually using yum on the cluster node. It wanted to install ovirt-host-deploy-1.3.1-1.el7, which should be OK. When adding a node, the install process tries to push an older version of the ovirt-host-deploy package and also for the wrong CentOS version (el6 instead od el7). Could this be a problem of the ovirt engine? The engine caches the bundle (tarfile) used for host-deploy in /var/cache/ovirt-engine/ovirt-host-deploy.tar . You can try to remove/rename it so that the engine will re-create it. It might have a too-new timestamp with older content for some reason. Thanks! This worked for us. Kind regards, Mitja ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
[ovirt-users] GlusterFS host installation failed
Hi, host installation in a glusterfs cluster is failing due to dependecies errors: Error: Package: glusterfs-server-3.7.2-3.el6.x86_64 (ovirt-3.5-glusterfs-epel) Requires: pyxattr Error: Package: glusterfs-server-3.7.2-3.el6.x86_64 (ovirt-3.5-glusterfs-epel) Requires: liburcu-cds.so.1()(64bit) Error: Package: glusterfs-server-3.7.2-3.el6.x86_64 (ovirt-3.5-glusterfs-epel) Requires: liburcu-bp.so.1()(64bit) oVirt Engine Version: 3.5.3.1-1.el6 on CentOS 6.6 I've installed the following repo: http://resources.ovirt.org/pub/yum-repo/ovirt-release35.rpm Thank you, -- Stefano Stagnaro Prisma Telecom Testing S.r.l. Via Petrocchi, 4 20127 Milano – Italy Tel. 02 26113507 int 339 e-mail: stefa...@prismatelecomtesting.com skype: stefano.stagnaro ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
Re: [ovirt-users] Stuck removing DataCenter, Hosts and Volumes
Anyone? :) Am 07.07.15 um 11:54 schrieb m...@ohnewald.net: Hello List, I have a 2 node replica Gluster Cluster in a Datacenter which i want to remove completely. 1.) I put both nodes in maintenance and removed the DataCenter and the Storage unter the Storage Tab. But now i am stuck removing the Cluster, Hosts and GlusterVolume. a) When i try to remove the Cluster: Error while executing action: Cannot remove Cluster. Host Cluster contains one or more Hosts. b) When i try to remove the hosts: node1: Cannot remove Host. Server having Gluster volume. c) When i try to remove my Volume i get: Error while executing action: Cannot stop Gluster Volume. No up server found in Cluster_II. Any idea how to solve this? Thanks, Mario ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
[ovirt-users] Live VM Backups
From what I can tell, you can only backup a VM to an export domain if the VM is shut down. Is a live VM backup not possible through oVirt? If not, why not? Most other virtualization tools can handle this. If it is possible, how do I do it through the backup API? api.vms.myvm.export requires it to be shutdown so what would the alternative be? Thanks. -- This email was Virus checked by UTM 9. For issues please contact the Windows Systems Admin. ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
[ovirt-users] R: R: R: R: R: R: R: PXE boot of a VM on vdsm don't read DHCP offer
-Messaggio originale- Da: Michael S. Tsirkin [mailto:m...@redhat.com] Inviato: mercoledì 8 luglio 2015 08:12 A: Dan Kenigsberg Cc: NUNIN Roberto; users@ovirt.org; ibar...@redhat.com Oggetto: Re: R: R: R: R: R: [ovirt-users] R: PXE boot of a VM on vdsm don't read DHCP offer On Tue, Jul 07, 2015 at 05:13:28PM +0100, Dan Kenigsberg wrote: On Tue, Jul 07, 2015 at 10:14:54AM +0200, NUNIN Roberto wrote: On Mon, Jul 06, 2015 at 10:33:59AM +0200, NUNIN Roberto wrote: Hi Dan Sorry for question: what do you mean for interface vnet ? Currently our path is : eno1 - eno2 bond0 - bond.3500 (VLAN) -- bridge - vm. Which one of these ? Moreover, reading Fabian statements about bonding limits, today I can try to switch to a config without bonding. vm is a complicated term. `brctl show` would not show you a vm connected to a bridge. When you WOULD see is a vnet888 tap device. The other side of this device is held by qemu, which implement the VM. Ok, understood and found it, vnet2 I'm asking if the dhcp offer has reached that tap device. No, the DHCP offer packet do not reach the vnet2 interface, I can see only DHCP DISCOVER. Ok, so it seems that we have a problem in the host bridging. Is it the latest kernel-3.10.0-229.7.2.el7.x86_64 ? Michael, a DHCP DISCOVER is sent out of a just-booted guest, and OFFER returns to the bridge, but is not propagated to the tap device. Can you suggest how to debug this further? Dump packets including the ethernet headers. I have both tcpdump capture, on the bridge interface and on the vnet interface. How I can upload output files ? Sorry for probably obvious question, first time for me :) Roberto Nunin Likely something interfered with them so the eth address is wrong. Since bonding does this sometimes, this is the most likely culprit. -- MST Questo messaggio e' indirizzato esclusivamente al destinatario indicato e potrebbe contenere informazioni confidenziali, riservate o proprietarie. Qualora la presente venisse ricevuta per errore, si prega di segnalarlo immediatamente al mittente, cancellando l'originale e ogni sua copia e distruggendo eventuali copie cartacee. Ogni altro uso e' strettamente proibito e potrebbe essere fonte di violazione di legge. This message is for the designated recipient only and may contain privileged, proprietary, or otherwise private information. If you have received it in error, please notify the sender immediately, deleting the original and all copies and destroying any hard copies. Any other use is strictly prohibited and may be unlawful. ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
Re: [ovirt-users] Live VM Backups
Dear Chris, It is not true, you can snapshot a machine, then clone the snapshot and export it for backup purposes after that you can remove the snapshot, all on the live VM. However, you need newer versions of libvirt to do that, right now we are using CentOS 7.1 and the libvirt that comes with it is capable of doing live merge which is necessary to achieve this. But i have to warn you, we are experiencing a problem when removing the snapshots (the part is commented in the attached script) it sometimes kills virtual machines in a way that makes it necessary to put the hypervisor to maintenance and then restart vdsmd and libvirtd before you can start that VM again. There is a bug filed already and it is in progress https://bugzilla.redhat.com/show_bug.cgi?id=1231754 I also have to add that i newer version of libvirt (on Fedora 20 with the libvirt preview repo) did not have that problem, so i am confident that this will be solved soon. Last but not least there is a plan to be able to export snapshots right away for backup without having to clone them first, this is a huge step forward for the backup procedure in terms of time that is needed and the load on the storage and hypervisor systems. I would really appreciate if you would help improving that script (we are not python developers), i will see that i make this a github project or something like that Cheers Soeren On 08/07/15 17:13, users-boun...@ovirt.org on behalf of Chris Jones - BookIt.com Systems Administrator users-boun...@ovirt.org on behalf of chris.jo...@bookit.com wrote: From what I can tell, you can only backup a VM to an export domain if the VM is shut down. Is a live VM backup not possible through oVirt? If not, why not? Most other virtualization tools can handle this. If it is possible, how do I do it through the backup API? api.vms.myvm.export requires it to be shutdown so what would the alternative be? Thanks. -- This email was Virus checked by UTM 9. For issues please contact the Windows Systems Admin. ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users #!/usr/bin/python import Queue import threading import time from ovirtsdk.api import API from ovirtsdk.xml import params import sys import datetime import smtplib from email.mime.text import MIMEText global SNAPSHOT_NAME VERSION = params.Version(major='3', minor='0') ENGINE_SERVER = '' ENGINE_USER = '' ENGINE_PASSWORD = '' ENGINE_CERT = '' NOW = datetime.datetime.now() SNAPSHOT_NAME = 'BACKUP_' + NOW.strftime(%Y-%m-%d-%H%M) DAY_OF_WEEK = NOW.strftime(%w) BACKUP = FULL exitFlag = 0 class myThread (threading.Thread): def __init__(self, threadID, name, q): threading.Thread.__init__(self) self.threadID = threadID self.name = name self.q = q self.api = api global message def run(self): print Starting + self.name process_data(self.name, self.q) print Exiting + self.name def process_data(threadName, q): while not exitFlag: queueLock.acquire() if not workQueue.empty(): data = q.get() queueLock.release() print %s processing %s % (threadName, data.name) vm = api.vms.get(name=data.name) vmname = data.name +_ newvmname = vmname + SNAPSHOT_NAME cluster = api.clusters.get(id=vm.cluster.id) dc = api.datacenters.get(id=cluster.data_center.id) export = None for sd in dc.storagedomains.list(): if sd.type_ == export: export = sd if not export: print(Export domain required, and none found, exitting...\n) sys.exit(1) if (data.name != 'HostedEngine' and cluster.name == 'CC-01'): vm.snapshots.add(params.Snapshot(description=SNAPSHOT_NAME, vm=vm )) snap = vm.snapshots.list(description=SNAPSHOT_NAME)[0] while vm.snapshots.get(id=snap.id).snapshot_status == locked: print(%s Waiting for snapshot of %s to finish) % (threadName, vm.name) time.sleep(60) print(%s Snapshotting %s is done) % (threadName,vm.name) try: snapshots = params.Snapshots(snapshot=[params.Snapshot(id=snap.id)]) api.vms.add(params.VM(name=newvmname, snapshots=snapshots, cluster=cluster, template=api.templates.get(name=Blank))) while api.vms.get(name=newvmname).status.state == image_locked: print(%s Waiting for clone of %s to finish) % (threadName, vm.name) time.sleep(300) print(%s Cloning of %s done) % (threadName, vm.name)
Re: [ovirt-users] Live VM Backups
Hi Soeren, thanks for sharing! I will look on this script right after upgrading to 7.1. It looks really useful. cheers, Jiri On 07/08/2015 09:36 PM, Soeren Malchow wrote: Dear Chris, It is not true, you can snapshot a machine, then clone the snapshot and export it for backup purposes after that you can remove the snapshot, all on the live VM. However, you need newer versions of libvirt to do that, right now we are using CentOS 7.1 and the libvirt that comes with it is capable of doing live merge which is necessary to achieve this. But i have to warn you, we are experiencing a problem when removing the snapshots (the part is commented in the attached script) it sometimes kills virtual machines in a way that makes it necessary to put the hypervisor to maintenance and then restart vdsmd and libvirtd before you can start that VM again. There is a bug filed already and it is in progress https://bugzilla.redhat.com/show_bug.cgi?id=1231754 I also have to add that i newer version of libvirt (on Fedora 20 with the libvirt preview repo) did not have that problem, so i am confident that this will be solved soon. Last but not least there is a plan to be able to export snapshots right away for backup without having to clone them first, this is a huge step forward for the backup procedure in terms of time that is needed and the load on the storage and hypervisor systems. I would really appreciate if you would help improving that script (we are not python developers), i will see that i make this a github project or something like that Cheers Soeren On 08/07/15 17:13, users-boun...@ovirt.org on behalf of Chris Jones - BookIt.com Systems Administrator users-boun...@ovirt.org on behalf of chris.jo...@bookit.com wrote: From what I can tell, you can only backup a VM to an export domain if the VM is shut down. Is a live VM backup not possible through oVirt? If not, why not? Most other virtualization tools can handle this. If it is possible, how do I do it through the backup API? api.vms.myvm.export requires it to be shutdown so what would the alternative be? Thanks. -- This email was Virus checked by UTM 9. For issues please contact the Windows Systems Admin. ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users smime.p7s Description: S/MIME Cryptographic Signature ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
[ovirt-users] how to configure virtio-scsi as a default disk interface in userportal/webadmin?
Hi, I was wondering about $SUBJ. Is it governed by interfaces order in osinfo properties? Or somewhere else? I hope that virtio-blk isn't hardcoded... Best regards, David Jaša ___ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
