[Linux-HA] Re: pingd problem

[Dominik Klein]

Achim Stumpf wrote:
>> This will give you a pingd score of 500. A ping_group is treated as 
>> one ping_host score wise.
>>
>> If you want to take each ping hosts connectivity into play, you should 
>> have
>> ping 10.14.0.10
>> ping 10.14.0.11
>> ping 10.14.0.12
>> ping 10.14.0.13
>> instead. This would give a pingd score of 2000 (and make your setup 
>> work score-wise). 
> 
> I know that ping_group is treated as one ping_host score wise. I expect 
> the score to be 500 for that.
> 
>>>                                 <instance_attributes 
>>> id="group_1_instance_attrs">
>>>                                         <attributes>
>>>                                                 <nvpair 
>>> id="group_1_target_role" name="target_role" value="started"/>
>>>                                                 <nvpair 
>>> id="group_1_resource_stickiness" name="resource_stickiness" 
>>> value="200"/>
>>>                                         </attributes>
>>>                                 </instance_attributes>
>>
>> Apart from the fact that these attributes should be "meta_attributes" 
>> instead of "instance_attributes", this will give you a score of 4 * 
>> 200 = 800 for the node the group is actually running on.
>>
>> So with ping working, you should have scores of
>> 800 + 500 for node1
>> 500 for node2
>>
>> Now you block icmp on node1. You will have:
>>
>> 800 on node1
>> 500 on node2
>>
>> So why should the cluster move any resource? 
> 
> Ah, ok. so its better to change this to:
> 
> <meta_attributes id="group_1_instance_attrs">
>     <attributes>
>         <nvpair id="group_1_target_role" name="target_role" 
> value="started"/>
>         <nvpair id="group_1_resource_stickiness" 
> name="resource_stickiness" value="200"/>
>     </attributes>
> </meta_attributes>
> 
> And the score of 200 counts for every primitive in the group. Ok, so 
> it's 800. I thought it counts only one time.

Again, read http://wiki.linux-ha.org/ScoreCalculation

> Apart from my misunderstanding here with 4*200 score, does my setup work 
> score-wise now? Or do I miss anything?

I don't know the config you use "now", but if you address the score 
issue I pointed out, I guess it should. The cib looked ok.

Regards
Dominik