[Zope] SESSION Errors

Jim Washington jwashin at vt.edu
Fri Feb 20 07:25:08 EST 2004

Chris McDonough wrote:

>On Thu, 2004-02-19 at 16:30, Dennis Allison wrote:
>>I need to squash this bug.  Any thoughts as to were to begin.  Have you
>>tried to locate the error?
>>	-d
>Yes.  And I haven't been successful.  I suspect that it's something
>related to conflict errors.
>- C
If it's any help, I recently found myself in a situation where sessions 
caused trouble relating to conflict errors.

What was happening, I think, was an intervening proxy server.

What I needed was:

user A on machine 1
user B on machine 2
user C on machine 3

username was from basic authentication.  machine id was determined 
automatically by the sessioning mechanism.
But machines 1,2,3 were sharing a proxy server.  Let's call the proxy 
server machine 7.

What I got was:

user A on machine 7
user B on machine 7
user C on machine 7

The result was unresolvable conflict errors, and I think it was only if 
two or more users' responses in a field differed within a very short 
time.  I had to abandon sessions and put the user-specific data in the 
relational database, keyed by username.

-- Jim Washington

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