[Pacemaker] network interface as a cluster resource (solved with patch)

Klaus Darilion klaus.mailinglists at pernau.at
Mon Mar 14 05:27:04 EDT 2011

Am 12.03.2011 10:36, schrieb Pavel Levshin:
> 10.03.2011 21:25, Klaus Darilion:
>> 2. before adding the IP address, it will delete the IP address if the
>> address is already configured (on any interface, with any netmask). Thus
>> the "add" will always work.
> This particular part is not good. The same address could be configured
> on other interface, notably loopback. It should not be dropped in this
> case.

Ok, but what is a valid use case for having an IP address configured on
multiple interfaces? Especially on lo?

> Resource Agent is supposed to start a service, it should not break
> things around here. If the service is already started, you don't need to
> stop and start it again in RA.

So, instead of deleting before adding, it should check if the IP is
already configured and skip the "add" part. Got it.


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