[Pacemaker] Unnecessary shuffling of master/slave resources and maybe a split brain

[Andrew Beekhof]

You created bug 2003 for this right?  Or is this another case?

On Thu, Nov 20, 2008 at 19:49, Adrian Chapela
<achapela.rexistros at gmail.com> wrote:
> Dominik Klein escribió:
>>
>> Adrian Chapela wrote:
>>>
>>> Dominik Klein escribió:
>>>>>
>>>>> What are you saying me ? I should have another communication channel as
>>>>> a COM port... I could test this with a null modem cable.
>>>>
>>>> You need at least 2 connections between the nodes. It never was
>>>> different.
>>>>
>>>> It once was true that a null modem oder serial cable as the second
>>>> connection was enough - from my _personal_ experience, having 2 ethernet
>>>> connections is better (because faster and able to cope with the rather high
>>>> traffic of v2 (pacemaker)).
>>>
>>> I tested two options. I think the best option is a second ethernet card.
>>> I have configured this option but I saw that my cluster didn't do a
>>> failover.
>>> The two connections are in different networks (One in 192.168.18.X and
>>> other in 172.16.1.0) but I don't know why pingd isn't going down all of
>>> resources.
>>>
>>> I have this connectivity constraint:
>>>       <rsc_location id="mail-connectivity" rsc="Mail-drbd">
>>>               <rule id="mail-pingd-prefer-rule" score="-INFINITY"
>>> role="Master">
>>>                       <expression id="mail-pingd-prefer"
>>> attribute="pingd" operation="lt" value="1000"/>
>>>               </rule>
>>>       </rsc_location>
>>>
>>>
>>>
>>>       <rsc_location id="samba-connectivity" rsc="Samba-drbd">
>>>               <rule id="samba-pingd-exclude-rule" score="-INFINITY" >
>>>                       <expression id="samba-pingd-exclude"
>>> attribute="pingd" operation="lt" value="1000"/>
>>>               </rule>
>>>       </rsc_location>
>>>
>>> And this colocation:
>>> <rsc_colocation id="mail_drbrd_rule" rsc="Mail" with-rsc="Mail-drbd"
>>> with-rsc-role="Master" score="INFINITY"/>
>>> <rsc_colocation id="samba_drbrd_rule" rsc="Samba" with-rsc="Samba-drbd"
>>> with-rsc-role="Master" score="INFINITY"/>
>>>
>>> The node lost connectivity with 192.168.18.0 (I defined all host in this
>>>  network for pingd) and pingd value should be less than 1000.
>>
>> Should be or is?
>
> It could be a problem with pingd again, I couldn't see pingd updating the
> value.
> I have attached hb_report.
>>
>> Could you post your xml including the status section in this situation?
>
>>
>> Regards
>> Dominik
>>
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