What is the maximum size of this file and/or maximum object ID?
=> just how many objects can the zodb hold? millions? tens of
millions..?? billions...??? I have a feeling we'll run out of ram
long before actually hitting the limit but it'd be nice to know the
theoretical top limit.
There is no answer to this question because it cannot be answered. No
one has come against a "limit" yet as far as I know. Hitting RAM
limits depends on the settings you apply to the Zope/ZEO instance(s)
that serve(s) the content and how much RAM you put in, you can
control ZODB memory cache size via zope.conf. No one sets up Zope so
that the whole ZODB is loaded into memory, if that's what you mean.
Zeo and Cataloging
If I have my site on one server and ZCatalog (using TextIndexNG) on
another server (connected by ZEO) where does the actual index
operation occur? Do just the results get propogated to the catalog?
The actual indexing operation happens on the Zope/ZEO instance, and
the resulting database changes are applied to the respective storage
where the catalog resides when the transaction commits.
I understand that can use the LDAPUserFolder Product to provide
authentication against an ldap server. Could I throw,say, 50000+
users at zope using this system?
I see no problems with that. It doesn't matter one bit to the
LDAPUserFolder (or the Zope security machinery) how many user records
you have in the DIT. If there are any slowdowns as the number of user
records increases it is most likely due to misconfigurations on the
LDAP server itself, such as bad indexing or overcomplicateed/
unnecessary access control checks.
Load Balancing and Cookie Based Sessions
Currently we use cookie based sessions via cookie crumbler
presumably in a load balanced server setup we'd have to host
acl_users ona ZEO'd izope instance somewhere on the backend?
Cookie crumbler has nothing to do with sessions. All it does is set/
read a cookie with credentials and then "fake" regular HTTP
authentication with this data. There is no state information being
stored on the server side, so in a ZEO setup it does not matter which
ZEO client you hit.
Zope maillist - Zope@zope.org
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