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

[Adrian Chapela]

Andrew Beekhof escribió:
> You created bug 2003 for this right?  Or is this another case?
>   

Yes, I created this bug. I will test this afternoon if it is possible.

Thank you!
> 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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>>>       
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>>     
>
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