Re: Server is swapping with free memory available

Someone correct me if I'm wrong, but the reason the default value for vm.swappiness = 60 on Linux is because the default server configuration is to be a fileserver?
I think that's true - where filesystem cache would be important but not great for DB servers.

Chris

On Wed, Mar 20, 2019 at 7:37 AM Rich J <rjoralist3_at_society.servebeer.com> wrote:

> On 2019/03/19 15:54, Upendra nerilla wrote:
>
> Hello everyone -
>> We have a database server which is choosing to swap though there is
>> plenty of free memory.
>> Any pointers on what to check are much appreciated..
>>
>> Environment:
>> Red Hat Enterprise Linux Server release 6.7
>> Oracle EE 12.1.0.2
>> This server has 2 instances
>>
>>
>
> Check out your kernel value for vm.swappiness. I believe the default is
> 60. I've set mine to "0", which is the equivalent of using swap when it's
> actually needed, instead of being proactive about it.
>
> Having the default value could explain what you're seeing.
>
> Rich
>

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