[Zope-DB] Zope Scaling (and Groups of Users)
Tue, 9 Jul 2002 20:37:49 -0500
1. Zope/ZEO Scaling. I spent several hours over the past 3 days
reading about Zope scalability with ZEO. I am now looking for numbers.
Two questions (nearly one and the same) which I did not find answered:
a. How well does ZEO scale in DATA SIZE (not availability). i.e. How
many items can I have in a folder? How many users/objects can it handle?
b. Numbers. There were no specific configuration numbers which I
found. How many objects? How many users? How much data?
I'm looking to be able to handle at least 40,000 user objects and a
similar number of other larger data objects of various sizes (2k -
20k+). Users could be pushed off to an ldap server or some other
environment via the LoginManager Mod etc, however I would still have
40,000 user folders in a single folder. Much of my application is of
course generate once, serve a million times, but almost all objects can
expect regular changes. Currently I have implemented the bulk of my
objects in an SQL database which I am serving through a Zope front
end. A pure Zope object setup however offers some conveniences over my
setup in terms of possibly simpler access controls and, if ZEO lives up
to it's claim, simpler scalability. I would be interested in hearing
users comments towards ZEOs ability to scale Zope and any specific
numbers from various Zope/ZEO setups. Numbers from single Zope Installs
are also very welcome.
2. Groups. I have also written my own Authentication system built off
of an SQL database to accommodate for groups, and group based access
controls. I have read the documentation on Zope3's plan for Groups of
principles, however seeing as Zope3 has not even released a build yet I
believe I will need to roll my own in this area. I have done some
google searching but not found any other Zope modules to handle group
based authentication. If anyone knows of such a module I would be very
interested in knowing more.
Thank you all for your time.