Paolo Linux wrote at 2005-9-21 11:23 +0200:
> ...
>I had zodb hanging when It had to solve Conflict situations.
>It turned out to be that it tried to import some modules that
>tried to instantiate ClientStorage...
>
>I easily fixed the hurting code...
>Lesson learned:
>
>- never automatically register in db objects via __init__
> (or access to zodb, more generally)
>
>- instantiate ClientStorage only when required...
>
>Just a small suggestion. Is there any way to catch this problem
>and issue a specific Execption rather that letting zeo hanging?
I modified "runzeo" to prevent it to start Zope.
It looks like this:
def main(args=None):
try:
# DM: prevent Zope from being start up
# (out of conflict resolution code)
import Zope; Zope.startup = None
except ImportError: pass
I also added the following patch:
# DM: 2004-06-03
# activate Zope's INSTANCE_HOME magic.
# This is necessary for conflict resolution of classes
# defined in "$INSTANCE_HOME/Products"
# Note that this is only a partial workaround. A complete solution
# would give ZEO the same Python path and product configuration options
# used by Zope. To get better control which classes are loaded
# an additional registration facility for such classes would
# be needed as well.
try: from App import FindHomes
except ImportError: pass # this is not Zope
--
Dieter
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