RE: [Zope3-Users] zodb objects backup

2006-02-28 Thread Shaun Cutts
It would be very nice if there were a faq or other doc addressing all of these scalability-related questions systematically for someone like me who understands what a relational database is doing for them (in return for squashing all their objects). It seems I'm not the only one with

Re: [Zope3-Users] zodb objects backup

2006-02-27 Thread Gary Poster
On Feb 27, 2006, at 12:03 AM, Shaun Cutts wrote: From: Tom Dossis [mailto:[EMAIL PROTECTED] Shaun Cutts wrote: But with replication, this issue is taken care of. (Too bad replication isn't part of the core functionality) Maybe soon.. http://hathawaymix.org/Software/PGStorage

Re: [Zope3-Users] zodb objects backup

2006-02-27 Thread Gary Poster
On Feb 26, 2006, at 4:33 PM, Shaun Cutts wrote: Thanks Gary! Ah -- very nice: so Data.fs *is* a transaction log. In theory an RDBMS with write ahead logging is still more secure because the transaction log is only backup, and the rest of the database is another copy of the current state

RE: [Zope3-Users] zodb objects backup

2006-02-27 Thread Shaun Cutts
Gary, Thanks again for your patient answers to all my questions. I'm trying to think of reasons why ZODB would not work in advance (as ZODB master/postgres slave), as this is a fundamental decision which would take much too much time to undo, and scalability testing is also time consuming. So

Re: [Zope3-Users] zodb objects backup

2006-02-27 Thread Chris Withers
Shaun Cutts wrote: So far so good, modulo the replication issue. (We don't have much funding yet... but if initial launch goes well, we're hopeful :)). As people have mentioned, you can use repozo to get almost the same effect. Either that or do app-level replication ;-) It would be very

RE: [Zope3-Users] zodb objects backup

2006-02-26 Thread Shaun Cutts
From: Tom Dossis [mailto:[EMAIL PROTECTED] Shaun Cutts wrote: But with replication, this issue is taken care of. (Too bad replication isn't part of the core functionality) Maybe soon.. http://hathawaymix.org/Software/PGStorage Great! Another potential issue on the scalability

Re: [Zope3-Users] zodb objects backup

2006-02-25 Thread Andreas Jung
--On 26. Februar 2006 00:04:39 +1100 Alen Stanisic [EMAIL PROTECTED] wrote: Hello, what would be the best way of taking a backup of persistent objects inside Data.fs with possibility to rebuild it on a fresh Zope 3 install in case of a disaster recovery lets say. Just backup the Data.fs

Re: [Zope3-Users] zodb objects backup

2006-02-25 Thread Alen Stanisic
On Sat, 2006-02-25 at 07:52 -0600, Andreas Jung wrote: --On 26. Februar 2006 00:04:39 +1100 Alen Stanisic [EMAIL PROTECTED] wrote: Hello, what would be the best way of taking a backup of persistent objects inside Data.fs with possibility to rebuild it on a fresh Zope 3 install in

Re: [Zope3-Users] zodb objects backup

2006-02-25 Thread Andreas Jung
--On 26. Februar 2006 01:52:29 +1100 Alen Stanisic [EMAIL PROTECTED] wrote: For some reason it doesn't feel completely safe just relying on Data.fs. That means what? Why shouln't it be safe...please come up with some reasonable arguments.. -aj pgpr7e7QMw0eC.pgp Description: PGP

Re: [Zope3-Users] zodb objects backup

2006-02-25 Thread Alen Stanisic
On Sat, 2006-02-25 at 08:59 -0600, Andreas Jung wrote: --On 26. Februar 2006 01:52:29 +1100 Alen Stanisic [EMAIL PROTECTED] wrote: For some reason it doesn't feel completely safe just relying on Data.fs. That means what? Why shouln't it be safe...please come up with some reasonable

Re: [Zope3-Users] zodb objects backup

2006-02-25 Thread Rupert Redington
Alen Stanisic wrote: On Sat, 2006-02-25 at 07:52 -0600, Andreas Jung wrote: --On 26. Februar 2006 00:04:39 +1100 Alen Stanisic [EMAIL PROTECTED] wrote: Hello, what would be the best way of taking a backup of persistent objects inside Data.fs with possibility to rebuild it on a fresh Zope

RE: [Zope3-Users] zodb objects backup

2006-02-25 Thread Shaun Cutts
On Sat, 2006-02-25 at 08:59 -0600, Andreas Jung wrote: --On 26. Februar 2006 01:52:29 +1100 Alen Stanisic [EMAIL PROTECTED] wrote: For some reason it doesn't feel completely safe just relying on Data.fs. That means what? Why shouln't it be safe...please come up with some

Re: [Zope3-Users] zodb objects backup

2006-02-25 Thread Gary Poster
Alen, please see http://www.zope.org/Wikis/ZODB/FileStorageBackup Shaun, many of the other questions in this thread--and others recently--are answered in this guide: http://www.zope.org/Wikis/ZODB/FrontPage/guide/index.html It is highly recommended reading if you are doing serious Zope 3

Re: [Zope3-Users] zodb objects backup

2006-02-25 Thread Alen Stanisic
Thanks Gary. On Sat, 2006-02-25 at 15:39 -0500, Gary Poster wrote: Alen, please see http://www.zope.org/Wikis/ZODB/FileStorageBackup Shaun, many of the other questions in this thread--and others recently--are answered in this guide: