[Pacemaker] Several problems with simple virtual-IP config

Klaus Darilion klaus.mailinglists at pernau.at
Wed Feb 9 09:59:19 UTC 2011


forgot to mention that armani=server1 and bulgari=server2 (showing some
respect to fashion brands :-)

Am 09.02.2011 10:16, schrieb Klaus Darilion:
> 
> 
> Am 08.02.2011 19:17, schrieb Michael Schwartzkopff:
>> On Tuesday 08 February 2011 18:03:31 Klaus Darilion wrote:
> ...
> 
>>> 3. Now, server1, hosting the virtual-IP, loost connectivity to the ping
>>> target (I inserted a firewall rule) -> The virtual-IP stayed with server1.
>>>
>>> Now I put server2 online again: # crm node online server2.
>>> That means, server2 is online and has ping connectivity, server1 is
>>> online and doesn't have ping connectivity. But the virtual-IP stayed
>>> with server1:
>>>
>>>   Online: [ server1 server2 ]
>>>
>>>   failover-ip     (ocf::heartbeat:IPaddr):        Started server1
>>>    Clone Set: clonePing
>>>        Started: [ server2 server1 ]
>>>
>>> What do I have to change in the config to have here a failover to server2?
>>
>> What are the pingd scores for each node? You can display it with
>> crm_mon -1f
> 
> Hi Michael!
> 
> Another scenario which I do not understand:
> 
> 1. Corosync only started on server1, not started on server 2:
> 
> 	Online: [ armani ]
> 	OFFLINE: [ bulgari ]
> 	
> 	failover-ip     (ocf::heartbeat:IPaddr):        Started armani
> 	 Clone Set: clonePing
> 	     Started: [ armani ]
> 	     Stopped: [ pingtest:1 ]
> 	
> 	Migration summary:
> 	* Node armani:
> 
> 2. Now i block armani's PINGs. After 5 seconds the score changes:
> 
> 	Online: [ armani ]
> 	OFFLINE: [ bulgari ]
> 	
> 	failover-ip     (ocf::heartbeat:IPaddr):        Started armani
> 	 Clone Set: clonePing
> 	     Started: [ armani ]
> 	     Stopped: [ pingtest:1 ]
> 	
> 	Migration summary:
> 	* Node armani:  pingd=10
> 
> After 5 more seconds the score changes again:
> 
> 	Online: [ armani ]
> 	OFFLINE: [ bulgari ]
> 	
> 	failover-ip     (ocf::heartbeat:IPaddr):        Started armani
> 	 Clone Set: clonePing
> 	     Started: [ armani ]
> 	     Stopped: [ pingtest:1 ]
> 	
> 	Migration summary:
> 	* Node armani:  pingd=0
> 
> 
> So, why isn't there a pingd score at all after startup?
> 
> When the pings are blocked, why is 5 seconds later suddenly a pingd
> score of 10?
> 
> Thanks
> Klaus
> 
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