[libvirt-users] domain has active block job

[Kashyap Chamarthy]

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

-- 
/kashyap