[Linux-cluster] Configuring rgmanager

[Ion Alberdi]

Lon Hohberger wrote:

>On Tue, 2005-03-01 at 14:28 +0100, Ion Alberdi wrote:
>  
>
>>Ion Alberdi wrote:
>>
>>    
>>
>>>Results from my tests with two nodes(buba and gump)(and latest 
>>>cvs(update done today)):
>>>I tried to put a basic script in failover on two nodes.
>>>Initialization:
>>>.....
>>>      
>>>
>>>(buba seems not to have any clurgmrgrd running, even if I started the 
>>>rgmanager...)
>>>
>>>I don't know if it's a bug of the rgmanager or if I'm doing something 
>>>wrong, but I don't understand why during the first reboot everything 
>>>worked and nothing then...
>>>
>>>      
>>>
>>Aparently this has nothing to do with the reboot, but with the use of 
>>clusvcadm.
>>When I only reboot nodes without relocating manually services, it works 
>>well: the service switching is always done.
>>However, after having relocated manually the service and rebooting the 
>>server running the service, it seems that magma doesn't say to the 
>>remaining node  that the service must be relocated (membership_update is 
>>not called, so nothing is done...)
>>Is this a bug?
>>    
>>
>
>There was a bug where rgmanager was randomly getting stuck in accept(2)
>because the listen sockets weren't set O_NONBLOCK (like they should have
>been).  Once it got there, it stopped picking up cluster events
>(including membership changes).  This should be fixed in current CVS.
>
>Could this have been the problem?
>
>  
>
Yes I've just downloaded/installed the latest cvs and it works now,thanks!

>>If it is not, I would find very usefull to relocate manually a service,
>>for example if the cluster is composed of a huge server and a little 
>>rescue server, after having repaired the huge server and making it join 
>>the cluster, it will be welcome to relocate manually the service.
>>Also if the administrator wants to do some operations on a server 
>>running a criticial service, it will be necessary to have previously 
>>relocated the service.
>>    
>>
>
>Relocating services is an obvious feature.
>
>  
>
>-- Lon
>
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>