Re: Failing, and then failing back

[Eric Pailleau]

Hi,
I guess you can do something with :

'else if succeeded exec' on the first rule.
But you may need to store the context by touching a file,
for example 'touch /var/tmp/failover'
(if file exist, you are in failover context, let machine1 became master
and remove the file.
If file doesn't exist, you are in normal context, then do nothing !)

Regards.

Le 02/08/2010 14:22, Craig Box a écrit :
> Hi guys,
>
> When you use Heartbeat, you can specify that one server is the master -
> if it goes down, it will fail the service over to the secondary, but
> when the master returns, it will
>
> I am replicating something like this in monit - we have a DNS CNAME
> pointing to machine1, and if a service on machine1 isn't responding, it
> sets the CNAME to machine2 and reloads the zone.
>
>      check host machine1 address machine1.example.org
> <http://machine1.example.org>
>              if failed host machine1 port 80 protocol http
>                      then exec "/usr/local/bin/set-alias.sh -a master
> -h machine2"
>
>      check host machine2 address machine2.example.org
> <http://machine2.example.org>
>              if failed host machine2 port 80 protocol http
>                      then exec "/usr/local/bin/set-alias.sh -a master
> -h machine1"
>
> However, when machine1 comes back up, it won't automatically become the
> master again - only when web2 fails.
>
> Is there an easy way to cause this "fail back" scenario in monit?
>
> Cheers
> Craig
>
>
>
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