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Re: [Rdo-list] [Mitaka] Automatic restart for services

Typically if you manage services with pacemaker, you would put the affected service into unmanaged state before you run `yum update`, so that RPM can do its thing. Afterwards, just mark the services managed.

On Thu, Nov 12, 2015 at 7:06 PM, Ihar Hrachyshka <ihrachys redhat com> wrote:
Fabio M. Di Nitto <fdinitto redhat com> wrote:

On 11/12/2015 5:01 PM, Ihar Hrachyshka wrote:
Fabio M. Di Nitto <fdinitto redhat com> wrote:

On 11/12/2015 4:55 PM, Javier Pena wrote:
----- Original Message -----
On 11/12/2015 05:42 AM, Haïkel wrote:

this has been discussed for a while, so I'd like to set automatic
restart for OpenStack services as a goal for Mitaka - milestone 1.
These are easy fixes, and by setting it to milestone 1, we'll have
more than enough time to test this and optimize.

I already created a trello card to track that effort, but I'd like to
get your feedback first.

can you describe what you mean here by automatic restart for services?

I'm worried what the implications would be for things that are running
under Pacemaker control in an HA environment, so I think we need more
details here

FWIW, this option is already enabled in some services, such as
where Restart=always. I've checked a Juno deployment, and that option
was already set back then.

It shouldn´t affect pacemaker deployment, because we do override some of
those values via dbus config.

To clarify things, doesn’t it affect just nova-api because you have some
special treatment for the service? or it would not affect you if applied
to other units? [In that case we could go forward and set automatic
restart policy there, while you could stick to your hooks to influence
service restart behaviour.]

all services in pacemaker that are managed/monitored via systemd gets a
set of overrides to avoid those kind of issues.

Then we should be safe to proceed with the feature.



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