[Pacemaker] custom resource-agent

[David Lang]

Peter, one trick you may want to try using is to set
ipv4.ip_nonlocal_bind=1
in sysctl.conf, this will let you start mySQL and bind it to the VIP, even if 
the VIP isn't live on the box yet.

so when you want to do a failover, you can have pacemaker stop MySQL on the old 
box, start it on the new box, and start the VIP migration. Until the VIP 
migration completes, you won't be able to reach MySQL on the new box, but as 
soon as the migration does complete, you will be live.

David Lang

On Mon, 30 Sep 2013, Peter Romfeld wrote:

> i am able to use IPaddr2 when running a external script explained here:
> http://aws.amazon.com/articles/2127188135977316
> I can adjust it to check port 3306 but i still want to use pacemaker to
> handle it, since thats pacemakers job :)
> I want to bind mysql to the VIP and in this case i cant use the external
> script anymore, and i think its more clean to let pacemaker manage
> everything related to the cluster!
>
> I am not that experienced with scripting so,
> Thanks very much!
>
>
> On Mon, Sep 30, 2013 at 9:22 PM, Michael Schwartzkopff <misch at clusterbau.com
>> wrote:
>
>> **
>>
>> Am Montag, 30. September 2013, 21:12:56 schrieb Peter Romfeld:
>>
>>> I am working in AWS i cant just use a VIP i need to use a floating
>>
>>> secondary IP which i reassign through script, i want to let pacemaker
>>
>>> handle the reassignment...
>>
>>
>>
>> Please explain the difference of a VIP and a "secondary IP" in your
>> opinion.
>>
>>
>>
>> --
>>
>> Dr. Michael Schwartzkopff
>>
>> Guardinistr. 63
>>
>> 81375 München
>>
>>
>>
>> Tel: (0163) 172 50 98
>>
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