[Zope] Re: pool_size

[Doyon, Jean-Francois]

Here's my setup using ZEO/ZRS:

zserver-threads 6

<zodb_db main>
  mount-point /
  # ZODB cache, in number of objects
  cache-size 20000
  pool-size 10
  <zeoclient>
    server hostname1:port1
    server hostname2:port2
    read-only-fallback true
    storage 1
    name zeostorage
    var $INSTANCE/var
    # ZEO client cache, in bytes
    cache-size 100MB
    # Uncomment to have a persistent disk cache
    #client zeo1
  </zeoclient>
</zodb_db>

J.F.

-----Original Message-----
From: zope-bounces at zope.org [mailto:zope-bounces at zope.org] On Behalf Of
Brian Sullivan
Sent: January 16, 2007 11:02 AM
To: Zope Users
Subject: Re: [Zope] Re: pool_size

On 1/16/07, Doyon, Jean-Francois <jdoyon at nrcan.gc.ca> wrote:
> Here's what I think I know (though I could be wrong):
>
> - The pool size is the number of ZODB connections maintained.
> - It should be at least as high as the number of zserver threads + 1 I

> think?
> - I use zserver threads 6 and pool_size 10, works fine.
> - zserver threads is basically a measure of how many concurrent 
> requests you want your server to be able to handle, by default, it's 4

> (and pool size 7 IIRC?).
> - The downside is you have to balance this with the cache size, since 
> the cache size is per thread ... So your RAM usage could go up 
> significantly.
>
>

Useful info -- I see a config setting for zserver-threads but how do you
set the pool_size ? -- in the zope.conf?  How?
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