[Zope] Zope's scalability across multiple web servers

[J. Atwood]

Writing to a database is one of the most resource intensive things you can
do. My understanding is that reading is about half of what writing is. Some
databases have been optimized for one or the other and a good example is
LDAP which is very fast at reading, but slow at writing (thusly good at
username and passwords).

For ZODB there becomes a point where the complexity and overhead of the
RDBMS are less than writing to the ZODB which has greater limitations in
size and overall flexibility.

There are also huge issues in terms of keeping multiple SQL databases synced
up so there is a case to be made to spread ZEO across many webservers with
one beefy DB server in the background serving them. That, combined with
Zope's ability to cache creates a highly scalable solution (IMHO).

I, personally, am just salivating at the chance to get my hands on ZEO.

J



> From: "Jason Spisak" <444@hiretechs.com>
> Date: Thu, 27 Apr 2000 15:25:14 GMT
> To: Sam Gendler <sgendler@silcom.com>
> Cc: zope@zope.org
> Subject: Re: [Zope] Zope's scalability across multiple web servers
> 
> Sam Gendler writes:
> 
>> 
>> However, if you are dynamically creating objects in the ZODB (something
>> that is strobly discouraged in a high volume write situation)
> 
> Why is that? I thought the connection overhead and maintainence of a RDBMS
> was a big deal? This gets brought up a lot. And I like to hear opinions.  I
> am aware that whatever justification is given is purely about what works
> for you, but I'd love to hear the reasoning.
> 
> All my best,
> 
> 
> Jason Spisak
> CIO
> HireTechs.com
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