[Zope] Re: Zeo

[Jonathan Cyr]

FYI,

Back during 2.6.x, I developed my whole system on a Windows Laptop, 
migrated to a Windows ZEO System, 1 client, 1 server.   Then moved the 
ZEO client & server to Red Hat AS 2.1, and now finally to SuSE 9.0.   
The only differences for me were the steps in installing PIL (Python 
Imaging Library) on Linux vs. Windows.  I had to wait to be more 
comfortable deploying on Linux, but Zope was obviously ready for Linux 
long before I was.

If you can stay away from platform-dependent products, and their 
dependencies, (Photo Product & ImageMagick for one), you should be able 
to mix and match.  The underlying python seems to facilitate this being 
a sort of intermediary compatibilty layer.  My approach was to make sure 
every component and dependency was python based.

Make sure to follow the directions for ZEO client/server compatibility, 
but those are python concerns. 

As for performance, I found Linux to be a large boost, especially when 
run without a GUI... the nature of the beast seems to lean toward Linux 
for good reason.

The other item you'll find on the list, is that a ZEO configuration is 
much more stable and forgiving than the quite-stable stand-alone Zope.  
Even internal Zope routines run better in a ZEO setup. 

-Jon Cyr
WeddingWeblog.com

J Cameron Cooper wrote:

> ken wood wrote:
>
>> I appreciate all the great tips on the cionfiguration issue. But my 
>> main issue is about infrastructure:
>> Which hardware and / or operating systems can be used for a Zope/Zeo 
>> system.
>
>
> OS: pretty much any Unixish OS, though on anything but Linux, BSD, and 
> Mac OS X (and maybe Solaris) you may run into some small problems. 
> Also Windows.
>
> Hardware: anything with enough juice that can run your OS. Not very 
> specific, I know, but it all depends on the performance you need. Less 
> than .5 hits/sec and pretty much anything that'll load Zope will work.
>
>> In particular, can I run a Zope instance on my Win32 server and have 
>> a Zeo Server/Clients on my Linux server?
>
>
> Sure. Why not?
>
>> If I use all the same versions (Python, Zope and Plone and Products) 
>> can I use a multi-OS infratructure?
>
>
> Almost certainly. There are a few OS-specific Products, though, but 
> that only matters on the ZEO client (except for storages, which only 
> matter on the ZEO server.)
>
> You don't even have to match versions, save for sanity. ZEO is not a 
> tightly-coupled communications protocol. Consider:
>
> Windows
>   Python 2.3.4
>   Zope 2.7.5
>   ZEO client - SomeProduct 1.1
>
> Linux
>   Python 2.3.3
>   Zope 2.7.3
>   ZEO server - no products
>   ZEO client - SomeProduct 1.0
>     ZEO command line client, for debugging
>
> This would work fine. All three ZEO clients would have the same data 
> (that from the ZEO server), even with different software.
>
>         --jcc
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