[Pacemaker] Frustrating fun with Pacemaker / CentOS / Apache

Paul Graydon paul at ehawaii.gov
Fri Feb 19 19:13:43 UTC 2010


On 2/19/2010 12:01 AM, Tom Weber wrote:
>>> I've looked into this with fresh eyes this morning and managed to track
>>> down the problem to this addition to the related to meta
>>> target-role="Started"
>>>
>>> Not sure quite where I picked that up from, presumably one of the
>>> configurations I used as a template?  Without setting it as an attribute
>>> it works fine, tested and retested with and without that addition.
>>>
>>> This works:
>>> primitive failover-apache ocf:heartbeat:apache \
>>>           params configfile="/etc/httpd/conf/httpd.conf"
>>> httpd="/usr/sbin/httpd" port="80" \
>>>           op monitor interval="5s" timeout="20s"
>>> statusurl="https://valid.test.url/index.html"
>>>
>>> This doesn't:
>>> primitive failover-apache ocf:heartbeat:apache \
>>>           params configfile="/etc/httpd/conf/httpd.conf"
>>> httpd="/usr/sbin/httpd" port="80" \
>>>           op monitor interval="5s" timeout="20s"
>>> statusurl="https://valid.test.url/index.html" \
>>>       meta target-role="Started"
>>>        
> do you still have the group resource from your initial post in your
> config?
>
> group web-cluster failover-ip failover-apache \
>           meta target-role="Started"
>
>    
>> That's weird.  That attribute shouldn't make any difference in this case -
>> it's just telling the cluster that it should try to start the resource,
>> which is the default anyway.
>>
>>      
>>> My understanding of the meta bits is a little weak, and I can't find an
>>> explanation as to what target-role is actually trying to do.
>>>        
>> It specifies the state the resource is meant to be in[1], i.e. stopped,
>> started, or a master or slave (the latter of which you would use for an active/passive DRBD clone pair, for example).
>>      
> I found that meta target-role in primitives that are members of a group
> conflict with the target-role of the group, so i got rid of these in the
> primitives.
>
>    Tom
>
>    

In this case, no, it's not but thats an interesting thought.  I'm going 
to knock up a couple of simple VMs and test this particular quirk to 
make sure I'm working from clean.  I'll update once I've seen what 
happens in a definitely clean environment.

Paul

-- 

Paul Graydon
Senior Systems Administrator
Hawaii Information Consortium
Internet Portal Partner with the Aloha state
808-695-4619 office
808-695-4618 fax
paul at ehawaii.gov
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