[Gluster-users] Gluster caching behaviour

Robert Hajime Lanning lanning at lanning.cc
Tue Dec 3 05:13:36 UTC 2013

On 12/02/13 06:21, Maik Kulbe wrote:
> Hi,
> I have a quick question on how Gluster leverages caching on the brick
> servers. My bricks currently have 4GB of RAM and of that 4GB about
> 600-800MB per server are unused and even more gets freed from time to time.
> Is it possible to configure Gluster so it uses all the RAM on those
> machines?

On the server, it would not be a GlusterFS configuration.
It would be kernel tuning.  If you are running a linux kernel, then 
setting some sysctl values can help.

I have these tuned for my system:

This pretty much goes for any storage server that is filesystem based 

Very important to tune these values when you have large amounts of RAM.

Mr. Flibble
King of the Potato People

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