[Zope] long running methods

[Patrick Gerken]

On Thu, May 20, 2010 at 14:18, Jürgen Herrmann
<Juergen.Herrmann at 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
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