[Zope3-Users] zodb data recovery

[Jonathan]

----- 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


> Jonathan,
> Thanks for the input...  is there somewhere you can point me that I
> can read about how to do that myself?
>
> Thanks!

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 
directory.

Google for 'zope mount point' and you will find lots of info as well.


Jonathan


>
> 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'
>> eg.
>>
>> root
>>   - 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) 
>> for
>> each folder.
>>
>>
>> hth
>>
>> Jonathan
>>
>>
>>
>
>
> -- 
> "All guilt is relative, loyalty counts, and never let your conscience
> be your guide."
>  - Lucas Buck, American Gothic
>