[libvirt] Trouble with /var/lib/libvirt/qemu/save mount
I'm trying to get libvirt-guests ON_SHUTDOWN=suspend to work on EL7 with a separate mount point for /var/lib/libvirt/qemu/save. It appears that during host shutdown that /var/lib/libvirt/qemu/save gets unmounted before libvirt-guests gets run, resulting in the save images running out of space on my system and being mounted over on boot. I've tried adding: RequiresMountsFor=/var/lib/libvirt/qemu/save to /usr/lib/systemd/system/libvirt-guests.service, but that does not appear to help. Any other ideas? Thanks. -- Orion Poplawski Technical Manager 720-772-5637 NWRA, Boulder/CoRA Office FAX: 303-415-9702 3380 Mitchell Lane orion@nwra.com Boulder, CO 80301 http://www.nwra.com
On Wed, Jul 12, 2017 at 10:11:34AM -0600, Orion Poplawski wrote:
I'm trying to get libvirt-guests ON_SHUTDOWN=suspend to work on EL7 with a separate mount point for /var/lib/libvirt/qemu/save. It appears that during host shutdown that /var/lib/libvirt/qemu/save gets unmounted before libvirt-guests gets run, resulting in the save images running out of space on my system and being mounted over on boot.
I've tried adding:
RequiresMountsFor=/var/lib/libvirt/qemu/save
to /usr/lib/systemd/system/libvirt-guests.service, but that does not appear to help. Any other ideas?
Each mount point has a corresponding unit file. eg /mnt/Downloads corresponds to mnt-Downloads.mount so you can put a dependancy between the lbivirt-guests.service and the mount unit, that ought to prevent it being unmounted Regards, Daniel -- |: https://berrange.com -o- https://www.flickr.com/photos/dberrange :| |: https://libvirt.org -o- https://fstop138.berrange.com :| |: https://entangle-photo.org -o- https://www.instagram.com/dberrange :|
On 07/12/2017 10:14 AM, Daniel P. Berrange wrote:
On Wed, Jul 12, 2017 at 10:11:34AM -0600, Orion Poplawski wrote:
I'm trying to get libvirt-guests ON_SHUTDOWN=suspend to work on EL7 with a separate mount point for /var/lib/libvirt/qemu/save. It appears that during host shutdown that /var/lib/libvirt/qemu/save gets unmounted before libvirt-guests gets run, resulting in the save images running out of space on my system and being mounted over on boot.
I've tried adding:
RequiresMountsFor=/var/lib/libvirt/qemu/save
to /usr/lib/systemd/system/libvirt-guests.service, but that does not appear to help. Any other ideas?
Each mount point has a corresponding unit file. eg
/mnt/Downloads corresponds to mnt-Downloads.mount
so you can put a dependancy between the lbivirt-guests.service and the mount unit, that ought to prevent it being unmounted
Regards, Daniel
As I understand it, RequiresMountsFor is supposed to handle that. With that, systemctl show libvirt-guests also has: Requires=var-lib-libvirt-qemu-save.mount -.mount var.mount basic.target After=machine-qemu\x5cx2d5\x5cx2dipa\x5cx2dboulder2.scope -.mount machine-qemu\x5cx2d4\x5cx2dad\x5cx2dboulder02.scope basic.target system.slice systemd-journald.socket machine-qemu\x5cx2d3\x5cx2dmailmirror.scope var.mount time-sync.target machine-qemu\x5cx2d2\x5cx2dvulcan7.scope libvirtd.service machine-qemu\x5cx2d1\x5cx2dmock1.scope network.target var-lib-libvirt-qemu-save.mount but I get: Jul 12 10:19:15 saga systemd: Stopping Suspend Active Libvirt Guests... Jul 12 10:19:16 saga libvirt-guests.sh: Running guests on default URI: mock1, vulcan7, mailmirror, ad-boulder02, ipa-boulder2 Jul 12 10:19:16 saga systemd: Unmounted /var/lib/libvirt/qemu/save. Jul 12 10:19:16 saga libvirt-guests.sh: Suspending guests on default URI... Jul 12 10:19:16 saga libvirt-guests.sh: Suspending mock1: ... Jul 12 10:19:16 saga blkdeactivate: [UMOUNT]: unmounting vg_data-save (dm-32) mounted on /var/lib/libvirt/qemu/save... done ... I wonder if libvirt-guests being of type oneshot is affecting this. -- Orion Poplawski Technical Manager 720-772-5637 NWRA, Boulder/CoRA Office FAX: 303-415-9702 3380 Mitchell Lane orion@nwra.com Boulder, CO 80301 http://www.nwra.com
participants (2)
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Daniel P. Berrange -
Orion Poplawski