4:23 p.m.
Hello
Is it possible to snapshot the Self-Hosted Engine before an Upgrade ? If so
how ?
Thanks
Fernando
10:13 a.m.
On Tue, Mar 27, 2018 at 4:23 PM, FERNANDO FREDIANI
<fernando.frediani(a)upx.com> wrote:
Hello
Is it possible to snapshot the Self-Hosted Engine before an Upgrade ? If so
how ?
I do not think so - I do not think anything changed since this:
http://lists.ovirt.org/pipermail/users/2016-November/044103.html
I agree it sounds like a useful thing to have. Not sure how hard it
can be to implement it. Feel free to open an RFE bz.
Basically, we'll have to:
1. Make sure everything continues to work sensibly - engine/vdsm do
the right things, ha agent works as expected, etc.
2. Provide means to start the vm from a snapshot, and/or revert to a
snapshot. This is going to be quite ugly, because it will have to
duplicate in ovirt-hosted-engine-setup/-ha functionality that already
exists in the engine, because at that point the engine is not
available to assist with this.
Best regards,
--
Didi
2:42 p.m.
On Wed, Mar 28, 2018 at 9:13 AM, Yedidyah Bar David <didi(a)redhat.com> wrote:
On Tue, Mar 27, 2018 at 4:23 PM, FERNANDO FREDIANI
<fernando.frediani(a)upx.com> wrote:
> Hello
>
> Is it possible to snapshot the Self-Hosted Engine before an Upgrade ? If
so
> how ?
I do not think so - I do not think anything changed since this:
http://lists.ovirt.org/pipermail/users/2016-November/044103.html
I agree it sounds like a useful thing to have. Not sure how hard it
can be to implement it. Feel free to open an RFE bz.
We are using a disk lease to prevent split brains, AFAIK snapshots are not
compatible with disk leases.
Basically, we'll have to:
1. Make sure everything continues to work sensibly - engine/vdsm do
the right things, ha agent works as expected, etc.
2. Provide means to start the vm from a snapshot, and/or revert to a
snapshot. This is going to be quite ugly, because it will have to
duplicate in ovirt-hosted-engine-setup/-ha functionality that already
exists in the engine, because at that point the engine is not
available to assist with this.
Best regards,
--
Didi
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2 comments
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participants (3)
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FERNANDO FREDIANI -
Simone Tiraboschi -
Yedidyah Bar David