On Jan 19, 2008, at 1:39 PM, Dieter Maurer wrote:
Tres Seaver wrote at 2008-1-18 21:06 -0500:
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David Bear wrote:
I'm doing my first zeo setup, and suddenly I'm not sure about my
products directory. Do I put all products in a products directory of
the zeo server or in each zope instance?
Normally the ZEO server doesn't need to have access to the products,
which are "application code". The only exception is for products
define classes having application-level conflict resolution: in such
cases, the ZEO server must be able to import the product (or else the
conflict resolution code is not consulted).
As an additional note:
Zope uses Python import magic to make packages available
in "INSTANCE_HOME/Products" as additional products in
the "Products" package.
If some of these products need application specific conflict
resolution, the ZEO server needs to activate this
import magic -- by importing Zope's "App.FindHomes".
An patch to runzeo that allows INSTANCE_HOME Products to be put on the
path (but does not require Zope's App.FindHomes is here):
Using this patch, you can create a Products directory in your ZEO's
instance home and put products in there to service conflict resolution
while still keeping SOFTWARE_HOME products on the path. Importing
App.FindHomes might be a better way to do this.
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