Il 13/01/2015 15:21, Kashyap Chamarthy ha scritto:
On Tue, Jan 13, 2015 at 03:07:07PM +0100, Fiorenza Meini wrote:
Il 13/01/2015 10:51, Kashyap Chamarthy ha scritto:
[. . .]
In libvirt log file I can see: error : qemuDomainDefineXML:6312 : block copy still active: domain has active block job
Libvirt is 1.2.7 version, linux system is Debian Wheezy
Please, what does it mean ?
It means, according to libvirt, there's an unfinished `blockcopy` (Copy a disk backing image chain to destination ) operation.
If you can find the associated libvirt guest name, you can try the below maybe.
For the Nova libvirt guest that you're trying to create a snapshot of, find the location of its current block device:
$ virsh domblklist instance-YYYYYYYYY
Then check if there are active block operaations for that disk:
$ virsh blockjob instance-YYYYYYYYY /path/to/libvirt/disk/ --info
If there is any operation and if it is a test environment, you can run the below to abort the block operation in progress:
$ virsh blockjob instance-YYYYYYYYY /path/to/libvirt/disk/ --abort.
Please the man page of `virsh` for more details.
Thank for your response, I'm quite new on libvirt... 1) virsh blockjob ... -info gave me an empyt list 2( virsh blockjob ... -abort gave me this error: error: Requested operation is not valid: another job on disk 'vda' is still being ended....
..but what ?
Seems like you're hitting an old bug[1] where 'blockcopy' (or 'blockcommit') missed to execute a cleanup routine which destroys a reference to the active block operation -- resulting in the error you're seeing when you attempted to 'abort' the block operation manually.
This bug is fixed in libvirt-1.2.8 and above. I see you're using libvirt-1.2.7, if you can update libvirt in your environment, that should fix your issue.
[1] https://bugzilla.redhat.com/show_bug.cgi?id=1135169 -- blockcopy job was cancel by "CTRL+C" while it show there still be one block job in background
Ok, thank you. I'll update libvirt as soon as possible, as I can see there is an update on my system for libvirt... Regards Fiorenza Meini -- Spazio Web S.r.l. V. Dante, 10 13900 Biella Tel.: +39 015 2431982 Fax.: +39 015 2522600 Numero d'Iscrizione al Registro Imprese presso CCIAA Biella, Cod.Fisc.e P.Iva: 02414430021 Iscriz. REA: BI - 188936 Cap. Soc.: €. 30.000 i.v.