[Zope] ZOBD caching products?

[Chris McDonough]

This is a 'feature' of the product initialization process.  Note that I
am just documenting buginess here, I should try to fix this when
possible.

When a Product can't be initialized (a syntax error, a bad import,
whatever), sometimes it will revert back to the state at which it wrote
a good *.pyc file and continue along its merry way without giving you
any indication there is a problem.

Two things:

Turn on the STUPID_LOG_FILE.  Its contents will show you problems during
problem initialization.  See
http://www.zope.org/Documentation/Misc/LOGGING.txt for more info.  Scan
the mail list archives for STUPID if this howto doesn't suit you
(seriously!)

When you really, truly want to refresh a product, delete the product
from the control_panel and restart.  I *think* that updating version.txt
in the product folder has the same effect.

> -----Original Message-----
> From: Seb Bacon [mailto:seb.bacon@razorfish.co.uk]
> Sent: Monday, June 19, 2000 1:57 PM
> To: zope@zope.org
> Subject: [Zope] ZOBD caching products?
> 
> 
> Ladies and gentlemen,
> 
> Some time ago I wrote to the list to ask for help on a 
> product reloading
> issue.  I'm still banging my head against it now, so i'm restating the
> problem again in the hope someone can help:
> 
> I have a very simple product (and it works!)
> Any changes I make don't get reflected in the product, so...
> 1) I change the function name in order to break it on purpose
> 2) I stop and restart Zope (or use the refresh product)
> ...and...
> 3) Zope thinks the product still works ?!?!£?"$""
> 
> This behaviour exhibits itself in Zope 2.1.6 *and* 2.2.0.
> Since no-one else ever seems to have had this problem, I can 
> only assume I
> am doing something wrong at a "doh!" basic level.  Sounds to 
> me like the
> product is getting cached in the ZOBD.  I'm only a poor 
> newbie, so I don't
> really know where to go from here in order to debug the problem.
> 
> Any clues????
> 
> Thanks, Seb.
> 
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