[Zope] ZODB Replication

[sean.upton@uniontrib.com]

Perhaps you could be clearer about your use case?  Do you mean replication
for high-availability, for backup?  Or do you need to sync objects between 2
Zopes?  I'm supposing you mean the former; in that case, options are:

- Commercial Product from Zope Corp: Zope Replication Services (ZRS) - this
replicates above the storage level, and is conceptually really nice (I think
storage-agnostic, which would definitely have a benefit in certain cases),
but it comes with a cost.

- Replicate the storage itself: I like this approach because it is free
(LGPL), but it does require more work and verification to get it working.  I
would suggest considering DirectoryStorage for this; it scales well, has
replication and incremental backup tools, and you can use standard Unix
command line tools (cpio over NFS, etc) to replicate stuff.
http://dirstorage.sf.net

- Other low-tech solutions of replicating below the storage (network RAID,
distributed block devices, rsync).

Sean

-----Original Message-----
From: Matthew Russell [mailto:matthew.russell@securetrading.com]
Sent: Friday, January 10, 2003 6:13 AM
To: zope@zope.org
Subject: [Zope] ZODB Replication


Hi all,

figured out my last post (Product question), and realise was being 
stupid, not quite understood the secuity model.

another,
does ZEO/ZEODB support replication yet? (in Zope 2.6?)
if not, any suggestions on how to replicate Zope Objs?

Matt


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