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

[Adrian Chapela]

Adrian Chapela escribió:
> 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.

I tested today and I reopened the bug because the bug is still present 
for the case of unplugging an ethernet cable.

>
> 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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>
>