[Zope] Re: [Plone-developers] the grand reunion

2008-04-14 Thread robert rottermann

Rudá Porto Filgueiras schrieb:

On Fri, Apr 11, 2008 at 1:23 PM, Florian Friesdorf [EMAIL PROTECTED] wrote:

Hi Robert,


 On Fri, Apr 11, 2008 at 04:04:43PM +0200, robert rottermann wrote:
  hi yuri,
 
  when setting up a zope/zeo task and everything was still a bit of a
  challenge (at least to me) we tended to have everything in one big
  instance that served some 20 low traffic sites.
  since then setting up a site with all the tools it needs has become a
  trivially easy and quick to execute task. we have converted nearly all
  these sites to have their own instance.
 
  I would not do it differently anymore ..

 Do you have or are there any comparisons for RAM usage of one zope instance
 containing multiple plone instances vs. multiple zope instances containing a
 single plone instance only?


It will be overkill. ;-)
We run all Plone sitess in same instance as possible (plone provider),
only creating one data.fs to each Plone Site and tunning cache objects
to each site needs.



you might be right,
is is an overkill when you start. just creating a new folder and a new 
plone site in it is *so* easy.
however, every site has its own lifecycle and tends to call for extra 
products, adaptations, plone  product versions, you name it. every such 
change affects every site in a one zope/several plone site setup.
and even if the change migth be trivial, it can have unwanted side 
effects for an other site.

my experience is: dont do it!

robert
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Re: [Zope] Re: [Plone-developers] the grand reunion

2008-04-14 Thread Yuri


 I would like to have an easy way to develop without having to be subject 
 to dependencies from other envinroment, minimize the effort to mantain 
 it and focus on doing things  :) 
 
  


Maybe not exactly what you are asking for but I recommend you play
with buildout a bit - I'm sure you'll appreciate the ease with which
you can manage independent installations in a repeatable and easily
modifiable way.

  
 Is one big zope installation, with multiple instances, well suited for 
 this tasks? Or is better different zope versions? What about the various 
 Data.fs, is better to have them separated by application or by zope 
 envinroment? I mean all the Plone in a single Data.fs or each one in a 
 separated Data.fs?
 



Without further knowing how these sites might be related or not
this is hard to answer but often times I prefer to have separate
Zope instances (- different ZODBs) for different Plone sites.
Even if they share substantial configuration/add-ons etc.
Again, using buildout makes it a snap to create and maintain
as many Zope instances as you want. And using a common buildout
cache they can also mostly share the basic installation.

Just my 2 cents,

Raphael

  




hi yuri,

when setting up a zope/zeo task and everything was still a bit of a 
challenge (at least to me) we tended to have everything in one big 
instance that served some 20 low traffic sites.
since then setting up a site with all the tools it needs has become a 
trivially easy and quick to execute task. we have converted nearly all 
these sites to have their own instance.


I would not do it differently anymore ..

robert
  


Thanks to all!

It seems that a separate zope instance for each plone site is the way 
to go. Just a question: is it a problem for performance/bottleneck/big 
python lock?

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[Zope] Re: [Plone-developers] the grand reunion

2008-04-11 Thread robert rottermann

hi yuri,

when setting up a zope/zeo task and everything was still a bit of a 
challenge (at least to me) we tended to have everything in one big 
instance that served some 20 low traffic sites.
since then setting up a site with all the tools it needs has become a 
trivially easy and quick to execute task. we have converted nearly all 
these sites to have their own instance.


I would not do it differently anymore ..

robert

Yuri schrieb:

Hi!

 Actually I've two Plone working envinronment and one zope, each in a 
different machine:


 - one, with two zope 2.9 istances (one for developing), running both 
multiple Plone 2.5 instances

 - one, with zope 2.9, running multiple Plone 2.5 instances
 - one, with zope 2.7.9, running zope only applications

 We have bought big iron hardware now, where I can do almost 
everything (with a fiber channel network storage, multiple rack servers).


tipically, I use one instance to develop, and one to deploy. This mean 
different zope instances which shares only the base, and having 
different products.


I would like to have an easy way to develop without having to be subject 
to dependencies from other envinroment, minimize the effort to mantain 
it and focus on doing things :)


 Is one big zope installation, with multiple instances, well suited for 
this tasks? Or is better different zope versions? What about the various 
Data.fs, is better to have them separated by application or by zope 
envinroment? I mean all the Plone in a single Data.fs or each one in a 
separated Data.fs?


 So, what is the best approach to migrate the three servers?

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