[ZODB-Dev] Commit seems to succeed but does'nt

[Steve Alexander]

Cyril Elkaim wrote:

>     Alexander,


"Steve", please :-)

I've copied this to zodb-dev.  Perhaps someone there can offer you 
further advice.


>     I've reorganize the code as you write and that works.


Good.


>     But it's not pretty to say the least. It should be better, I think, 
> that the root content be maintained in memory between retries. So one 
> must maintain all his datas in his own structures and copy them inside 
> root before the commit.


That wouldn't work in most cases. That's the point of a conflict error: 
there's a conflict between what threads want to do.

You'll probably want to consider how you handle conflict errors at a 
"software architecture" level, rather than at an implementation level.
A good architecture will help you to keep the code elegant :)

 
> Steve Alexander wrote:
> 
>>
>> If you get a conflict error, you need to retry the whole transaction 
>> (all the changes you made), not just the commit statement.

-- 
Steve Alexander
Software Engineer
Cat-Box limited