[Pacemaker] A function demand of the new environment.

renayama19661014 at ybb.ne.jp renayama19661014 at ybb.ne.jp
Mon Sep 21 12:47:56 UTC 2009


Hi Lars,

I understand that I can come true by the method that you showed enough.

However, we wanted to do respawn under the cluster software if possible.

We talk about a substitute method again, too.

Thank you.

Hideo Yamauchi.

--- Lars Ellenberg <lars.ellenberg at linbit.com> wrote:

> On Mon, Sep 21, 2009 at 12:00:37PM +0200, Andrew Beekhof wrote:
> > On Fri, Sep 18, 2009 at 3:09 AM,  <renayama19661014 at ybb.ne.jp> wrote:
> > > Hi Andrew,
> > >
> > >> I still don't understand why you can't simply make them regular
> > >> cluster resources.
> > >> Can you please explain?
> > >
> > > I understand your opinion.
> > > I surely understand that simple RA can operate an object of respawn by shifting.
> > >
> > > However, an object of respawn of all users cannot shift to RA.
> > > For example, there is the user who does respawn of processing to work even if a node becomes
> the
> > > standby state.
> > 
> > I'm almost afraid to ask, why would someone need this capability?
> > 
> > > But, a primitive resource and the Clone resource stop when a node becomes the standby state.
> > > The user needing this respawn cannot easily shift to new environment.
> > 
> > True.
> 
> If someone wanted to respawn some process, regardless of
> online/standby/whatever state of the cluster manager,
> that process is independend from the cluster manager.
> 
> Then why use the cluster manager configuration file at all?
> 
> On Linux (and other unix-ish systems), put it into inittab.
> 
> If you prefer indirections (for administrative or other purposes),
> respawn some wrapper script from your inittab (just in case the wrapper
> script dies unexpectedly), and put other respawn lines into some
> config file that is parsed from that wrapper script.
> 
> Problem solved.
> 
> -- 
> : Lars Ellenberg
> : LINBIT | Your Way to High Availability
> : DRBD/HA support and consulting http://www.linbit.com
> 
> DRBD召� and LINBIT召� are registered trademarks of LINBIT, Austria.
> 
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