3:17 a.m.
Hi list,
issuing the command "virsh blockcommit --delete --pivot" (on a
previously created external snapshot/overlay) returns an error regarding
an unsupported flag warning stating "error: unsupported flags (0x2)". I
need to manually "rm" the affected file after the blockcommit.
A similar issue was reported many years ago here [1]. Am I missing
something, or is the "--delete" flag not supported?
Thanks.
[1] https://bugzilla.redhat.com/show_bug.cgi?id=1001475
--
Danti Gionatan
Supporto Tecnico
Assyoma S.r.l. - www.assyoma.it
email: g.danti(a)assyoma.it - info(a)assyoma.it
GPG public key ID: FF5F32A8
4:23 a.m.
On 08/31/2018 02:17 PM, Gionatan Danti wrote:
Hi list,
issuing the command "virsh blockcommit --delete --pivot" (on a
previously created external snapshot/overlay) returns an error regarding
an unsupported flag warning stating "error: unsupported flags (0x2)". I
need to manually "rm" the affected file after the blockcommit.
A similar issue was reported many years ago here [1]. Am I missing
something, or is the "--delete" flag not supported?
The qemu driver still does not implement the flag. Yes, it's a known
issue for many years now, but it is surprisingly complex to come up with
semantics for deletion of an external snapshot in a way that doesn't
corrupt data, so no one has tackled that code project.
--
Eric Blake, Principal Software Engineer
Red Hat, Inc. +1-919-301-3266
Virtualization: qemu.org | libvirt.org
4:47 a.m.
Il 31-08-2018 22:23 Eric Blake ha scritto:
The qemu driver still does not implement the flag. Yes, it's a
known
issue for many years now, but it is surprisingly complex to come up
with semantics for deletion of an external snapshot in a way that
doesn't corrupt data, so no one has tackled that code project.
Mmm... if I am expected to manually delete the inactive overlay file
(after a successful blockcommit --pivot), why can not libvirt/qemu do
the same? I mean, a simple rm of the inactive (just commited) file...
Thanks.
--
Danti Gionatan
Supporto Tecnico
Assyoma S.r.l. - www.assyoma.it
email: g.danti(a)assyoma.it - info(a)assyoma.it
GPG public key ID: FF5F32A8
2199
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Eric Blake -
Gionatan Danti