[ZODB-Dev] _p_resolveConflicts

[Jim Fulton]

"John D. Heintz" wrote:
> 
> Do you have any prediction for when this work will begin?

Fraid not. I hope in the next few months, but ...

This is not a small effort, since it requires a significant
change in the storage API.

Jim

> Thanks,
> John
> 
> On Thursday 02 August 2001 14:51, Jim Fulton wrote:
> > "Randall F. Kern" wrote:
> > > Although my hook (_p_resolveConflicts) is called and is returning the
> > > proper state, the transactions are still being retried :(
> > >
> > > Does the default FileStorage in Zope 2.4.0 support conflict resolution
> > > or not?
> >
> > It does.
> >
> > Note that conflict errors can be detected when reading data.
> > Conflict resolution cannot resolve conflicts detected when
> > reading.  :(
> >
> > We need to add full support for "multi-version concurrency
> > control", which will allow us to avoid read conflicts by
> > reading non-current but consistent data.
> >
> > Jim
> >
> > --
> > Jim Fulton           mailto:jim@digicool.com   Python Powered!
> > Technical Director   (888) 344-4332            http://www.python.org
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> >
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> >
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> 
> --
> . . . . . . . . . . . . . . . . . . . . . . . .
> 
> John D. Heintz | Senior Engineer
> 
> 1016 La Posada Dr. | Suite 240 | Austin TX 78752
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> 
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--
Jim Fulton           mailto:jim@digicool.com   Python Powered!        
Technical Director   (888) 344-4332            http://www.python.org  
Digital Creations    http://www.digicool.com   http://www.zope.org