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Re: [dm-devel] [PATCH] multipath: don't let init script stop multipathd for root devices

On Fri, Mar 26, 2010 at 11:04:22AM +0900, Kiyoshi Ueda wrote:
> Hi Ben,
> On 03/26/2010 02:52 AM +0900, Benjamin Marzinski wrote:
> > This patch modifies the redhat init script, so that it doesn't allow
> > multipathd to be stopped when the root device is on it.
> Why do you need to prevent stopping daemon by script-level forcibly?
> I think that users/developers may want to restart the daemon at their
> own risk when it starts to behave something wrong or they change
> a configuration (since "reconfigure" may not be stable feature).
> # Maybe others have different opinion but I often use "restart".
> If you need this patch anyway, please add other options to stop/restart
> the daemon forcibly.  (e.g. adding force-stop/force-restart)

I can certainly add a force-stop/force-restart.  This can currently be
accomplished by simply killing the daemon, but admittedly doing it
through the init script is cleaner and more obvious to users, and it's
necessary to allow package upgrades to immediately start using
multipathd on systems with multipathed root disks.

However, what is there that you need to restart the daemon for that

# service multipathd reload

won't fix, besides upgrading the package.  If there is something, then
we should fix it.  I only stop the daemon when I'm testing shutting
down, and upgrading source. Otherwise, I've been using reconfigure
without problems.


> Thanks,
> Kiyoshi Ueda

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