[Zope3-Users] zodb data recovery
dev101 at magma.ca
Wed Jul 19 07:52:39 EDT 2006
----- Original Message -----
From: "Pete Taylor" <baldtrol at gmail.com>
To: "Jonathan" <dev101 at magma.ca>
Cc: <zope3-users at zope.org>
Sent: Tuesday, July 18, 2006 11:20 PM
Subject: Re: [Zope3-Users] zodb data recovery
> Thanks for the input... is there somewhere you can point me that I
> can read about how to do that myself?
If you are looking for info on how to use mount points look in the zope.conf
file in your zope installation which should be in the ...zope/etc
Google for 'zope mount point' and you will find lots of info as well.
> On 7/18/06, Jonathan <dev101 at magma.ca> wrote:
>> ----- Original Message -----
>> From: "Pete Taylor" <baldtrol at gmail.com>
>> To: <zope3-users at zope.org>
>> Sent: Tuesday, July 18, 2006 7:07 PM
>> Subject: [Zope3-Users] zodb data recovery
>> > Thinking about the ZODB and data recovery...
>> > Let's say I have two or three sites all running off the same Data.fs
>> > (through ZEO or otherwise). Doing nightly backups, being good
>> > sysadmins, etc. Now I get a call from a user who says "I don't know
>> > what happened to the content, but it was there three days ago, i
>> > swear!"
>> > So I look through my backups, load a Data.fs up in my python shell,
>> > and start digging around, and sure enough, there's the data.
>> > How do I get that data "back" so to speak? I don't want to restore
>> > the whole ZODB, that would blow away my other sites data, and any data
>> > that any other user of that same site had created. I know that zope3
>> > doesn't provide any "dump data from this context on down" kind of
>> > utils, but I was wondering what the standard way to do this was? I'm
>> > sure this problem has been run into ;)
>> > I haven't run into this yet, but I'm in the midst of building a
>> > site-with-many-subsites scenario, and I worry about these kinds of
>> > things. Certainly the "Undo" functionality is great, but it has
>> > limits... and in many ways, it's not the immediate "oh, oops, i
>> > deleted that" kind of data destruction I'm worried about, though
>> > that's there. It's more the a-few-weeks-later kind of issue that I'm
>> > worried about.
>> > I'd considered opening up a connection to both Data.fs ZODB's,
>> > establishing the correct context in both, and then repopulating all of
>> > the data that way. But anything that keys on ObjectEvent (or any
>> > other design specific event) thrown during these object creations
>> > would fail. And unless we explicitly check for annotations and such,
>> > I don't know if those would picked up just by moving all content
>> > objects from a particular location.
>> > Has anyone else solved this problem, or have suggestions toward
>> > solving it? I don't mind writing the scripts to repopulate data from
>> > a restored zodb should that be necessary, but I don't really think
>> > that's the right way to go, or at least not on it's own.
>> > Any thoughts would be extremely welcome!
>> If you have set up the 'virtual' web sites so that they have their own
>> folder 'tree-structure'
>> - virtualWebSite1folder
>> - virtualWebSite1subfolder...
>> - virtualWebSite2folder
>> - virtualWebSite2subfolder...
>> - virtualWebSite3Folder
>> - virtualWebSite3subfolder...
>> you can export/import a single folder instead of the entire Data.fs.
>> Another solution is to set up a mount point (ie. a separate xxx.fs file)
>> each folder.
> "All guilt is relative, loyalty counts, and never let your conscience
> be your guide."
> - Lucas Buck, American Gothic
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