On Mar 18, 2008, at 11:45 AM, Andreas Kurz wrote:
On Tue, Mar 18, 2008 at 11:16 AM, Andrew Beekhof <[EMAIL PROTECTED]>
wrote:
On Tue, Mar 11, 2008 at 3:13 PM, Andreas Kurz
<[EMAIL PROTECTED]> wrote:
On Tue, Mar 11, 2008 at 2:32 PM, Dejan Muhamedagic <[EMAIL PROTECTED]
> wrote:
Hi,
On Tue, Mar 11, 2008 at 11:56:07AM +0100, Andreas Kurz wrote:
On Tue, Mar 11, 2008 at 11:02 AM, Sebastian Reitenbach
<[EMAIL PROTECTED]> wrote:
Hi,
I want to achieve the following:
I have two groups of resources, these shall run on the same
host, and
startup in a given order.
Therefore I created an order and an collocation constraint.
So group1 starts before group2, and the collocation says, if
group1 is not
able to run on a node, group2 will not start.
However, if all resources in group1 are started, then the
resources in
group2 are started too. But when I then shutdown any single
resource in
group1, then group2 stops working too.
I am not sure, whether my collocation or order is the reason
for the
observed behavior.
I have not tried it by myself but there are these "Advisory-Only
Ordering" constraints:
<rsc_order id="orderid" from="res2" to="res1" score="0"/>
Good advice. Though even when all of the group1 is stopped,
group2 won't stop either.
According to the documentation it should ... and after doing some
ptests, I see it does ;-). If the complete group1 is stopped, group2
is stopped to. If only one resource in group1 is stopped, group2
does
nothing.
Maybe I've been on vacation too long, but that sounds strange.
Where did I write that? I'd have expected group2 to keep running in
either case.
I read it in the "Configuration Explained" pdf ... Advisory Ordering
... and it is also mentioned in your "Ordering Explained" pdf.
I see:
Any change in state by the to resource will have no effect on the
from resource.
By the way, I found it a little bit confusing that "from" and "to" are
interchanged in "Ordering Explained" without mentioning that this is
not the default behaviour ( type=after ) ... e.g. :
<rsc_order from=A to=B>
Start A before starting B and stop B before stopping A
... or A and B are interchanged, as you prefer ;-)
the whole choice of from/to was a giant mistake (one that is being
corrected for pacemaker-1.0)
Regards,
Andreas
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See also: http://linux-ha.org/ReportingProblems
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See also: http://linux-ha.org/ReportingProblems
