[Pacemaker] A demand to the process trouble.(OpenAIS/Corosync and Pacemaker)

[renayama19661014 at ybb.ne.jp]

Hi Andrew,

> What do you mean by monitor here?
> Do you mean that pacemaker would no longer detect if those two processes died?

This monitor means the monitor of the resource.
When these processes fall, the monitor of the resource of lrmd/stonithd stops.
For example, the monitor of external/ssh and pgsql stops.

> Do you mean the way heartbeat behaves with "crm on" instead of "crm respawn" ?

I do not understand this meaning well.

I think that the following approach is necessary.

1) When a process related to a monitor fell, a system reboots.(Emergency Reboot)
2) When a process related to a monitor fell, a monitor does not stop even if it reboot.

The first approach thinks that realization is simple.

Best Regards,
Hideo Yamauchi.

--- Andrew Beekhof <andrew at beekhof.net> wrote:

> On Fri, Jul 17, 2009 at 3:34 AM, <renayama19661014 at ybb.ne.jp> wrote:
> > Hi,
> >
> > We began shift investigation to the combination of Pacemaker and corosync/openais now.
> >
> > We put Pacemaker and openais(whitetank) together and confirmed movement at the time of the
> process
> > trouble.
> > (This is the function that a reboot emergency occurred by a combination with Heartbeat.)
> >
> > I let a process of Pacemaker break down. (kill -9 pid)
> > The following behavior was seen then.
> >
> > * When crmd reboots on ACT node(Not DC), the monitor of the lrmd resource stops.
> >  And the monitor of the stonnith resource stops.
> 
> What do you mean by monitor here?
> Do you mean that pacemaker would no longer detect if those two processes died?
> 
> > * When stonithd reboots on ACT node(Not DC), the monitor of the stonnith resource stops.
> > * When crmd reboots on STB node(DC), the monitor of the stonnith resource stops.
> > * When pengine reboots on STB node(DC), the monitor of the stonnith resource stops.
> > * And more....
> >
> > We feel a problem for the stop of the monitor after the process reboot.
> > When we combined openais/corosync, we hope a function such as the urgent reboot of Heartbeat
> to be
> > included.
> 
> Do you mean the way heartbeat behaves with "crm on" instead of "crm respawn" ?
> >
> > Best Regards,
> > Hideo Yamauchi.
> >
> >
> > _______________________________________________
> > Pacemaker mailing list
> > Pacemaker at oss.clusterlabs.org
> > http://oss.clusterlabs.org/mailman/listinfo/pacemaker
> >
> 
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