[Problem report] "pack" discards reachable object (was: [Zope]Pack problem with zeo)

[Jonathan]

----- Original Message ----- 
From: "Jonathan" <dev101 at magma.ca>
To: "Dieter Maurer" <dieter at handshake.de>
Cc: <zope at zope.org>; <zodb-dev at zope.org>
Sent: Monday, August 21, 2006 2:05 PM
Subject: Re: [Problem report] "pack" discards reachable object (was: 
[Zope]Pack problem with zeo)


>
> ----- Original Message ----- 
> From: "Dieter Maurer" <dieter at handshake.de>
> To: "Jonathan" <dev101 at magma.ca>
> Cc: <zope at zope.org>; <zodb-dev at zope.org>
> Sent: Monday, August 21, 2006 1:58 PM
> Subject: Re: [Problem report] "pack" discards reachable object (was: 
> [Zope] Pack problem with zeo)
>
>
>> Jonathan wrote at 2006-8-21 13:38 -0400:
>>> ...
>>>I can reproduce the behaviour very easily... after I pack and the
>>>'ZeoServer1' folder disappears i do the following:
>>>
>>>- stop zope
>>>- delete Data.fs
>>>- rename Data.fs.old to Data.fs
>>>- start zope
>>>
>>>And the ZeoServer1 folder is back.  I then pack zope and the ZeoServer1
>>>folder disappears again.  I can do this again and again and again.
>>
>> If your "Data.fs.old" is not too large (not larger than 1 MB)
>> and on the path to the "ZeoServer1" are only standard Zope objects, you
>> could send it to me for investigation ([bg]zip it, to make it smaller).
>
> Thanks for the very kind offer but the Data.fs file is 53Mb before packing 
> and 7.8Mb after packing. I tried tar/gzip but the 53Mb only dropped down 
> to 8.9Mb.

I have found a work-around:

- delete the ZeoServer1 folder (via the ZMI)
- pack the main Data.fs and specify only to pack items older than 1 day
- after the pack (Data.fs down to 7.8Mb from 53Mb) undo the ZeoServer1 
folder deletion

Everything seems to be ok, but a bit of an ugly work-around.


Jonathan