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Re: [Linux-cluster] Re: SMP and GFS



Axel Thimm wrote:
> On Mon, Oct 03, 2005 at 07:59:22AM +0100, Patrick Caulfield wrote:
> 
>>Axel Thimm wrote:
>>
>>>On Thu, Jul 14, 2005 at 04:57:51PM -0400, Manuel Bujan wrote:
>>>
>>>
>>>>Is there any  issue I should be aware of if SMP is enabled in
>>>>my kernel ? What if I compile my kernel to be pre-emptible ? Any problem with that and GFS ?
>>>>
>>
>>Pre-emptible kernels will not work with GFS, that's certain.
> 
> 
> My report was on a RHEL4 kernel.


...but you did ask about pre-emtible kernels :)

The important messages here are these :

> Sep 30 05:08:33 zs03 kernel: CMAN: removing node zs02 from the cluster :
Missed too many heartbeats (P:kernel)
> Sep 30 05:08:39 zs03 kernel: CMAN: removing node zs01 from the cluster : No
response to messages (P:kernel)


showing that a node has been kicked out of the cluster for not responding
quickly enough to messages. You could try increasing the value in

/proc/cluster/config/cman/max_retries

-- 

patrick


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