[ZODB-Dev] multiple ZEO db's ?

2007-01-11 Thread Simon Burton

Do I have any hope of distributing my Persistent objects over multiple
ZEO db's ? 

It seems that Persistent objects are tied to one "global" db connection.

Simon.
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Re: [ZODB-Dev] multiple ZEO db's ?

2007-01-11 Thread Andreas Jung



--On 11. Januar 2007 08:49:31 -0800 Simon Burton <[EMAIL PROTECTED]> 
wrote:




Do I have any hope of distributing my Persistent objects over multiple
ZEO db's ?


huh? You can mount multiple ZEO servers within one Zope instance.
So where is the problem?

-aj 

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Re: [ZODB-Dev] multiple ZEO db's ?

2007-01-11 Thread Simon Burton
On Thu, 11 Jan 2007 17:53:24 +0100
Andreas Jung <[EMAIL PROTECTED]> wrote:

> 
> --On 11. Januar 2007 08:49:31 -0800 Simon Burton <[EMAIL PROTECTED]> 
> wrote:
> 
> >
> > Do I have any hope of distributing my Persistent objects over multiple
> > ZEO db's ?
> 
> huh? You can mount multiple ZEO servers within one Zope instance.
> So where is the problem?

I don't know where or if there is a problem.

I don't use Zope.

Simon.
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Re: [ZODB-Dev] In-memory storage with undo ability?

2007-01-11 Thread Dieter Maurer
Rooney, Mike (ext. 324) wrote at 2007-1-10 17:01 -0500:
>Hi everyone, I have what I imagine is a pretty simple question. I am looking
>for a type of storage class (like FileStorage) which allows for undoing
>but stays in memory instead of on disk. If DemoStorage supported undo
>it would work but it does not appear to in ZODB 3.6.

If Jim is not right (and "DemoStorage" does not support "undo"),
then it would not be difficult to derive a "RamFileStorage" from
"FileStorage" that exactly works like "FileStorage" but have its
file implemented as a "StringIO" (rather than a file on the file system).



-- 
Dieter
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Re: [ZODB-Dev] multiple ZEO db's ?

2007-01-11 Thread Christian Theune
Hi,

Am Donnerstag, den 11.01.2007, 09:31 -0800 schrieb Simon Burton:
> On Thu, 11 Jan 2007 17:53:24 +0100
> Andreas Jung <[EMAIL PROTECTED]> wrote:
> 
> > 
> > --On 11. Januar 2007 08:49:31 -0800 Simon Burton <[EMAIL PROTECTED]> 
> > wrote:
> > 
> > >
> > > Do I have any hope of distributing my Persistent objects over multiple
> > > ZEO db's ?
> > 
> > huh? You can mount multiple ZEO servers within one Zope instance.
> > So where is the problem?
> 
> I don't know where or if there is a problem.
> 
> I don't use Zope.

ZODB has support for multiple databases tied together. Please read the
file ZODB/tests/multidb.txt on how to use them.

Christian

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