[ZCM] [ZC] 1010/ 6 Comment "Product reload broken"

[Collector: Zope Bugs, Features, and Patches ...]

Issue #1010 Update (Comment) "Product reload broken"
 Status Pending, Zope/bug medium
To followup, visit:
  http://collector.zope.org/Zope/1010

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= Comment - Entry #6 by berlingo666 on Oct 5, 2004 7:49 am

Is this issue getting anywhere? status still pending... or is it already fixed in some version?
Keep getting this error.
Product is python-class based with lots of ZPT-s
Using Zope 2.7.0 release.

1:
Traceback (innermost last):

    * Module ZPublisher.Publish, line 104, in publish
    * Module Zope.App.startup, line 221, in commit
    * Module ZODB.Transaction, line 233, in commit
    * Module ZODB.Transaction, line 348, in _commit_objects
    * Module ZODB.Connection, line 425, in commit
      __traceback_info__: (('BTrees.OOBTree', 'OOBTree'), '\x00\x00\x00\x00\x00\x00\x00\x8f', '')

ValueError: Cache values may only be in one cache.

2:
Traceback (innermost last):

    * Module ZPublisher.Publish, line 104, in publish
    * Module Zope.App.startup, line 221, in commit
    * Module ZODB.Transaction, line 233, in commit
    * Module ZODB.Transaction, line 348, in _commit_objects
    * Module ZODB.Connection, line 425, in commit
      __traceback_info__: (('Products.Transience.Transience', 'Increaser'), '\x00\x00\x00\x00\x00\x00\x00\x0b', '')

ValueError: Cache values may only be in one cache.

these 2 differ the most from others.. and I think I have got this error using automatic and manual refreshing
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= Comment - Entry #5 by icottee on Jun 17, 2004 12:40 am

Any idea when/if this will be fixed? It happens everytime with some very very simple Archetypes I am working with and it's a pain (using zope-2.7.1-b2). 
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= Comment - Entry #4 by scamps on Mar 2, 2004 5:25 am

Still present in Zope 2.7.0 final

Refreshing the Product using ZMI also fixes everything
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= Comment - Entry #3 by tim_one on Jan 23, 2004 2:57 pm

Dieter Maurer may have found a good clue here:

http://mail.zope.org/pipermail/zope-dev/2003-December/021115.html
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= Comment - Entry #2 by Zen on Dec 12, 2003 11:37 pm

To clarify this, *manual* product refresh using the Product's Refresh tab works as expected. *automatic* product refresh fails.

This is still present in 2.7b3.
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= Request - Entry #1 by Zen on Aug 5, 2003 5:02 am

After a product reload, there is a fair chance that I'll get the following exception when accessing an object defined by that product:

Traceback (innermost last):
  Module ZPublisher.Publish, line 102, in publish
  Module Zope.App.startup, line 220, in commit
  Module ZODB.Transaction, line 233, in commit
  Module ZODB.Transaction, line 348, in _commit_objects
  Module ZODB.Connection, line 427, in commit
   - __traceback_info__: (('BTrees.IOBTree', 'IOBucket'), '\x00\x00\x00\x00\x00\x00\x00G', '')
ValueError: Cache values may only be in one cache.

I've received other errors, but the above is the most common and 
I've received confirmation that at least one other person is receiving them.

Restarting Zope fixes everything.

This issue will need to be resolved before 2.7 final, or reload functionality removed.
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