[ZCM] [ZC] 2231/ 5 Comment "ZODB Cache on manual refresh"

Issue #2231 Update (Comment) "ZODB Cache on manual refresh"
 Status Pending, Zope/bug medium
To followup, visit:
  http://www.zope.org/Collectors/Zope/2231

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= Comment - Entry #5 by ctheune on Mar 9, 2007 5:48 pm

I'd like to point out an alternative that is being developed right now. It's in a semi-usable state and explicitly states that it won't 
help you up when you destroy anything valuable with it.

Look at https://launchpad.net/refreshng/


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= Comment - Entry #4 by tseaver on Feb 14, 2007 2:56 pm

I'm not sure you would like the fix I would check in, which
would be to disable product refresh altogether:  it *seems* to
work much of the time, but when if fails it leads to inscrutable,
hard-to-reproduce problems, wasted time, and hair-loss.

In general, I would recommend changing your development process
as follows:

 - Remove *all* 'refresh.txt' files from every product in your
   instance.

 - Write unit tests for your custom code, and run them regularly,
   rather than trying to test such changes manually in a
   running appserver.

 - You *can* continue to test template-level changes "live",
   as long as you run zope in the foreground ('runzope.bat' on
   Windows, or 'zopectl fg' elsewhere).

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= Comment - Entry #3 by pjstevns on Feb 14, 2007 4:33 am

Any updates on this bug? We're seeing this quite a lot on our zope2.9 development instances, making 2.9 almost unusable as a developement platform. Please see ticket 5615 on the plone collector for some of the impact this bug has:

https://dev.plone.org/plone/ticket/5615

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= Edit - Entry #2 by ajung on Nov 12, 2006 3:21 am

 Changes: submitter email, importance (critical => medium)
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= Request - Entry #1 by burbank on Nov 3, 2006 4:48 pm

After manually refreshing a Product and the trying to create new instance of  a content type from that Product, I get a an error. The trace is listed below. Refresh is a very compelling part of Zope and Plone development for myself and other developers, so any assistance is very much appreciated. Thank you.

2006-11-03T13:28:35 ERROR Zope.SiteErrorLog http://XXX.XXX.XXX.XXX:8088/FSCVL/FSCVL/test/portal_factory/Training Event/training_event.2006-11-03.3081931765/base_edit
Traceback (innermost last):
  Module ZPublisher.Publish, line 121, in publish
  Module Zope2.App.startup, line 240, in commit
  Module transaction._manager, line 96, in commit
  Module transaction._transaction, line 380, in commit
  Module transaction._transaction, line 378, in commit
  Module transaction._transaction, line 433, in _commitResources
  Module ZODB.Connection, line 484, in commit
  Module ZODB.Connection, line 526, in _commit
  Module ZODB.Connection, line 560, in _store_objects
ValueError: Cache values may only be in one cache.
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