On Thu, May 20, 2010 at 14:18, Jürgen Herrmann <Juergen.Herrmann@xlhost.de>wrote:
hi there!
as our zope2 zodb grows we experience more and more conflicts with long running transactions. so i'm going to rewrite these methods to commit transactions in batches - here my attempt to tackle this problem. the idea is to get a list of objects to be modified in this transaction, break it down to batches and commit after each batch was processed. to avoid zope's retry-on-conflict machinery and still have a chance to retry per batch transaction commits, the iteration over one batch is guarded by a try:except ConflictError: and a retry logic.
Zope already has its own retry mechanism, maybe you might want to call your long running method multiple times, each time working on the next batch. Viele Grüße, Patrick