[ClusterLabs] Failover question

[Ken Gaillot]

On 03/16/2017 04:01 AM, Frank Fiene wrote:
> OK, but with the parameter INFINITY?

Correct, that makes it mandatory, so virtual_ip can only run where there
is a running instance of proxy.

> I am not sure that this prevents Apache for running on the host without the virtual IP.

You configured apache as a clone, so it will run on all nodes,
regardless of where the IP is -- but the IP would only be placed where
apache is successfully running.

>> Am 15.03.2017 um 15:15 schrieb Ken Gaillot <kgaillot at redhat.com>:
>>
>> Sure, just add a colocation constraint for virtual_ip with proxy.
>>
>> On 03/15/2017 05:06 AM, Frank Fiene wrote:
>>> Hi,
>>>
>>> Another beginner question:
>>>
>>> I have configured a virtual IP resource on two hosts and an apache resource cloned on both machines like this
>>>
>>> pcs resource create virtual_ip ocf:heartbeat:IPaddr2 params ip=<ip-address> op monitor interval=10s
>>> pcs resource create proxy lsb:apache2 statusurl="http://127.0.0.1/server-status" op monitor interval=15s clone
>>>
>>>
>>> Will the IP failover if the Apache server on the Master has a problem?
>>> The Apache is just acting as a proxy, so I thought it would be faster to have it already running on both machines.
>>>
>>>
>>> Kind Regards! Frank
>>> — 
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