similar to: rsync of big image files from virtual hosts takes lot of time

Hi, i have a two node cluster with virtual guests as resources. I'd like to snapshot the guests once in the night and thought i had a procedure. But i realize that things in a cluster are a bit more complicated than expected :-)) I will shutdown the guests to have a clean snapshot. I can shutdown the guests via pacemaker. But then arises the first problem: When i issue a "virsh

Hi, i have a strange situation: A domain is still running where domblklist points to a snapshot file and also dumpxml says the current drive is that snapshot file. But the file has been deleted hours ago. And the domain is still running. I can login via ssh, the database and the webserver are still running, domain is performant. How can that be ? Also lsof shows that the file is deleted:

Pacemaker always knows where its resources are running. Query it, stop the domain, then use the queried location as the host to which to issue the snapshot? Cheers, Peter On Mon, 15 Oct 2018, 20:36 Lentes, Bernd, < bernd.lentes@helmholtz-muenchen.de> wrote: > Hi, > > i have a two node cluster with virtual guests as resources. > I'd like to snapshot the guests once in the

Hi, i can store the disk of a guest in a plain partition which isn't formatted. That's no problem, i did it already several times, although the promised speed increase didn't appear. But is it possible to create from such a guest a snapshot in a .sn file using virsh ? Regards, Bernd -- Bernd Lentes Systemadministration Institut für Entwicklungsgenetik Gebäude 35.34 - Raum

Hi, i have a two node HA-Cluster with several domains as resources. Currently it's running in test mode. Some domains (all on the same host) stopped running, virsh list shows them as "paused". All stopped at the same time (11th of may, 7:00 am), my monitoring system began to yell. I don't have any clue why this happened. virsh domblkerror says for all the domains (5) "no

Hi, recently i had some domains stopped without any obvious reason for me. Unfortunately i didn't find the cause. I'd like to log information about the domains that i have more information the next time this will happen. In /etc/libvirt/libvirtd.conf i have: log_level = 3 log_outputs="3:file:/var/log/libvirt/libvirtd.log" which creates enormous log files, but with logrotate and

----- Am 20. Okt 2018 um 18:56 schrieb rsync ML rsync at lists.samba.org: > First, add --stats to find out how much is being transferred. Second, > if these are fixed size or sparse image files then --sparse will be a > big help. Finally, if they are not fixed size or sparse then --inplace > is probably making things worse. > > --no-whole-file is the default btw unless you

Hi, i have a two-node cluster with several domains as resources. During testing i tried several times to migrate some domains concurrently. Usually it suceeded, but rarely it failed. I found one clue in the log: Dec 03 16:03:02 ha-idg-1 libvirtd[3252]: 2018-12-03 15:03:02.758+0000: 3252: error : virKeepAliveTimerInternal:143 : internal error: connection closed due to keepalive timeout The

Hi, i have several domains running on a 2-node HA-cluster. Each night i create snapshots of the domains, after copying the consistent raw file to a CIFS server i blockcommit the changes into the raw files. That's running quite well. But recent the blockcommit didn't work for one domain: I create a logfile from the whole procedure:

----- Am 20. Okt 2018 um 20:05 schrieb rsync ML rsync at lists.samba.org: > I don't see any --stats output. It will tell you exactly how much data > was involved. > > A local copy means that rsync isn't networking. Rsync speeds things up > by running on 2 separate computers and communicating using the rsync > protocol. If you are running rsync on a single computer

Hi, currently i'm following https://wiki.libvirt.org/page/Live-disk-backup-with-active-blockcommit. I 'm playing around with it and it seems to be quite nice. What i want is a daily consistent backup of my image file of the guest. I have the idea of the following procedure: - Shutdown the guest (i can live with a downtime of a few minutes, it will happen in the night). And i think

I don't see any --stats output. It will tell you exactly how much data was involved. A local copy means that rsync isn't networking. Rsync speeds things up by running on 2 separate computers and communicating using the rsync protocol. If you are running rsync on a single computer with the source being a mounted SAN volume and the target being a mounted cifs share then as far as rsync

----- On May 13, 2019, at 3:34 PM, Bernd Lentes bernd.lentes@helmholtz-muenchen.de wrote: > Hi, > > i have a two node HA-Cluster with several domains as resources. > Currently it's running in test mode. > Some domains (all on the same host) stopped running, virsh list shows them as > "paused". > All stopped at the same time (11th of may, 7:00 am), my monitoring

----- On Jun 5, 2019, at 4:49 PM, Peter Krempa pkrempa@redhat.com wrote: > On Wed, Jun 05, 2019 at 13:33:49 +0200, Lentes, Bernd wrote: >> Hi Peter, >> >> thanks for your help. >> >> ----- On Jun 5, 2019, at 9:27 AM, Peter Krempa pkrempa@redhat.com wrote: > > [...] > >> >> > >> > So that's interresting. Usually assertion

Hi Peter, thanks for your help. ----- On Jun 5, 2019, at 9:27 AM, Peter Krempa pkrempa@redhat.com wrote: >> ============================================================= >> ... >> 2019-05-31 20:31:34.481+0000: 4170: error : qemuMonitorIO:719 : internal error: >> End of file from qemu monitor >> 2019-06-01 01:05:32.233+0000: 4170: error : qemuMonitorIO:719 :

Hi, i knwo that virsh has its own history, but are somewhere the respective timestamps logged ? Bernd -- Bernd Lentes Systemadministration Institut für Entwicklungsgenetik Gebäude 35.34 - Raum 208 HelmholtzZentrum münchen bernd.lentes@helmholtz-muenchen.de phone: +49 89 3187 1241 phone: +49 89 3187 3827 fax: +49 89 3187 2294 http://www.helmholtz-muenchen.de/idg Perfekt ist wer

On Mon, May 13, 2019 at 06:19:05PM +0200, Lentes, Bernd wrote: > > > ----- On May 13, 2019, at 3:34 PM, Bernd Lentes bernd.lentes@helmholtz-muenchen.de wrote: > > > Hi, > > > > i have a two node HA-Cluster with several domains as resources. > > Currently it's running in test mode. > > Some domains (all on the same host) stopped running, virsh list

Jim wrote: >> >> What is meant by the "admin interface" ? virsh ? > > virsh-admin, which you can use to change some admin settings of libvirtd, e.g. > log_level. You are interested in the keepalive settings above those ones in > libvirtd.conf, specifically > > #keepalive_interval = 5 > #keepalive_count = 5 > >> What is meant by

----- On Jun 13, 2019, at 1:08 PM, Bernd Lentes bernd.lentes@helmholtz-muenchen.de wrote: I found further information in /var/log/messages for both occurrences: 2019-06-01T03:05:31.620725+02:00 ha-idg-2 systemd-coredump[14253]: Core Dumping has been disabled for process 30590 (qemu-system-x86). 2019-06-01T03:05:31.712673+02:00 ha-idg-2 systemd-coredump[14253]: Process 30590 (qemu-system-x86) of

----- On Apr 3, 2019, at 5:27 PM, Eric Blake eblake@redhat.com wrote: > It is possible to create an external snapshot (an internal one is not > possible, unless you stored the guest disk as qcow2 format embedded > inside the partition rather than directly as raw format). Note that > when you create an external snapshot, the partition becomes a read-only > point in time (no