[Zope-dev] Zope 2.X BIG Session problems - blocker - our site dies - need help of experience Zope developer, please

[alex at halogen-dg.com]

Hi Chris,

> Well, I was also shamed into creating a new implementation of the
> sessioning stuff that might work better under higher load.

Thank you very much for a fast fix/replacement of Transience :)

> The people that are now having problems should try to replace the file
> in their Zope software home named
> "lib/python/Products/Transience/Transience.py" with this one:
> 
> http://cvs.zope.org/*checkout*/Zope/lib/python/Products/Transience/Transience.py?rev=1.32.12.2.2.1
> 
> (be sure to make a backup of the original file first)

I installed new Transience.py. During my little test it works fine.
But real test will be on Monday when students start logging in as complete
classes, sometimes there are hundreds of them logging on simultaneously, 
so we will see. 

I copied original file, so in case of problems, I will put it back 
and restart Zope.

> After putting the new file in place, restart Zope and see what happens. 
> This stuff was just checked in, so there's sure to be some edge case
> bugs, but all the unit tests pass and the UI still works.  Please report
> results back here, if possible.


I will report if any problem occurs. 

Alex




On Sun, 29 Feb 2004, Chris McDonough wrote:

> 
> Thanks!
> 
> - C
> 
> 
> On Sun, 2004-02-29 at 01:11, Santi Camps wrote:
> > > When we started using Zope sessions, we experienced a set
> > > of session problems. I started fixing them, but it turned out
> > > that the implementation was very ambitious, too ambitious to
> > > get it safe. I, therefore, switched plans and implemented
> > > an alternative "Transience" module -- much simpler and less ambitious.
> > > We use it since then in a medium load production
> > > environment and did not see any more problems.
> > > 
> > > I asked my boss whether I can release this implementation
> > > as "Open Source". He said "sure".
> > > 
> > > I still have to hash out a few organisational questions but
> > > I expect the module will be available within 2 weeks.
> > 
> > Oh, these are really good news !!  
> > 
> > Please, announce it very high :-)
> > 
> > Thanks a lot
> 
> 

--
Alex V. Koval
http://www.halogen-dg.com/
http://www.zwarehouse.org/