Re: Recommended number of pools, one Q. ever wanted to ask

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Well,

On 02/28/2012 10:42 AM, Wido den Hollander wrote:
Hi,

On 02/28/2012 10:35 AM, Oliver Francke wrote:
Hi *,

well, there was once a comment on our layout in means of "too many pools".
Our setup is to have a pool per customer, to simplify the view on used
storage
capacity.
So, if we have - in a couple of months, we hope - more then some hundred
customers, this setup was not recommended, cause the whole system is not
designed for handling that. ( Sage)

What does "not recommended" mean? Is it, that per OSD the used memory
will be
too high?

Yes. Every new pool you create will consume some memory on the OSD. So if you start creating a lot of pools, you will also start consuming more and more memory.

I haven't followed this lately, but that is the current information I have.

The number of objects in a pool is also not a problem, you can have millions without any issues. It's the number of pools which will haunt you later on.

thnx for the quick reply, so if we can imagine, that the number of pool per OSD is the limiting factor, we shall not have more than let's say ~100, means, we shall be
safe.


Wido

best regards,

Oliver.


Is this a general performance issue?

Well, if we read "pool", this gave us the basic idea/concept to put all
per-customers
data into it.

Please sched some light in 8-)

Kind regards,

Oliver.




--

Oliver Francke

filoo GmbH
Moltkestraße 25a
33330 Gütersloh
HRB4355 AG Gütersloh

Geschäftsführer: S.Grewing | J.Rehpöhler | C.Kunz

Folgen Sie uns auf Twitter: http://twitter.com/filoogmbh

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