[libvirt-users] domains paused without any obvious reason

Lentes, Bernd bernd.lentes at helmholtz-muenchen.de
Tue May 14 18:51:13 UTC 2019

----- Am 14. Mai 2019 um 11:08 schrieb Daniel P. Berrangé berrange at redhat.com:

> 'virsh domstate --reason $GUEST'
> will tell you what event caused the guest to pause in the first place.
> If you can resume successfully, this indicates the event was a transient
> problem.   Given the domblkerror message 'no space' I'm it looks that
> you had a problem running out of disk space temporarily which then
> resolved itself.
> Regards,
> Daniel


i have a clue what happened.
The script shuts down the domains, snapshots them, restarts them and then copy the backing files to a CIFS
server. After the copy is done (which lasts several hours), the domains are blockcommitted.
Finally the script deletes the local snap files. I think the snap files got too big,
because the logical volume for them has just 20GB and i'm snapshotting currently 8 domains.
Limit of the LV was reached. And because i finally deleted the snapshot files i didn't see that.
I will monitor now the LV for the snap files in my script to see how big they are growing.


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