On 19 Apr 2013, at 14:48, Florian Crouzat <[email protected]> wrote:

> About move and constraints, it all goes down to a design choice, but to 
> me, it makes sense (for the reasons I mentioned in my first answer) and 
> it's documented, so ... :)

> When you, as 
> an admin says otherwise, the cluster trusts you and create a location 
> constraint representing the administrative decision you just took.

While I am obviously the ultimate decider of what goes where, this mechanism 
doesn't allow me to separate these intentions:

* Move resource x to node 1 now
* Move resource x to node 1 now and never allow it to come back

As far as I can see only the latter is possible, if I'm to believe the "This 
will be the case even if node 1 is the last node in the cluster" warning.

It's obviously possible to have a resource sitting a node and have no 
applicable location rules, and yet it stays put. Since I can create location 
rules that may result in implicit moves, and I can issue move commands too, it 
doesn't seem necessary that the two should be tied together.

I think the most practical solution is to always follow a move with an unmove - 
though it's pretty counter-intuitive and clumsy, kind of like trying to drive a 
car by issuing written instructions...

Marcus
_______________________________________________
Linux-HA mailing list
[email protected]
http://lists.linux-ha.org/mailman/listinfo/linux-ha
See also: http://linux-ha.org/ReportingProblems

Reply via email to