[Zope] long running methods

[Andreas Jung]

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Patrick Gerken wrote:
> On Thu, May 20, 2010 at 14:18, Jürgen Herrmann
> <Juergen.Herrmann at xlhost.de <mailto: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.
> 

There retry applies only for methods called through the web  - but
not when you use bin/instance run or so.

Andreas
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