On Thu, 4 Nov 2010, Bryan O'Neal wrote:

> Setting swapiness is how I can deal with a recurrence but it will not
> flush current swap. And I can not shut down any process to perform
> swap off. :(

then you have not yet adequately provided for failover -- If a 
process 'can not be shut down', it has not business being on 
only one server without a failover capacity

Solve the failover problem, and you both increase reliability 
of the service, and make possible regular administration

-- Russ herrold
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