--On 22. Juni 2008 08:49:32 -0700 tsmiller <tsmiller@[...].com>  
wrote:

> 
>  Gary,
>  I have been using the ZODB for about a year and a half with a bookstore
>  application.  I am just now about ready to put it out on the internet for
>  people to use.  I have had the same problem with saving data.  I have
>  tried alot of things.  But I have never gotten the database to save
>  consistently.  I can create an x number of records one right after the
>  other that uses the exact same code to save them, and it is likely that
>  all of them will save perfectly except one - or maybe two.

We have never seen that - except with badly written application code. 
Commiting a transaction should always commit the data. That's the sense of 
a transaction system. The only reason I can imagine causing such a failure:
bare try..except with in your code suppressing ZODB conflict errors.

Andreas