Re:Re: Re: How to know the root reason to cause RegionServer OOM?

[David chen]

Thanks for guys' helps. 
Maybe the root reason is to turn off swap.
The cluster contains seven Region servers, although all set vm.swappiness to 0, 
but two of them has always turned off swap, others turned on. Meanwhile OOM 
also always encountered on the two machines.
I plan to turn on swap and also set vm.swappiness to 1, the latter is because 
of the post(http://www.innomysql.net/article/2790.html).
Any ideas?