Dieter Maurer wrote:
Pablo Ziliani wrote at 2005-11-18 20:37 -0300:
... using the same "session data container" by various "session data manager"s
...
However now my question is: can't this configuration lead to session
collisions, given that now I have multiple BIMs/SDMs making writes to
the same TrOC?
(...)
Even a single browser id manager does not explicitely protect
itself from handing out the same browser id twice.
But the probability is very low indeed: the session
id consists of a time stamp (second resolution, I think)
and a 4 byte (pseudo) random number.
(...)
*BUT* not sure whether the (pseudo) random number generator
behaves well in the presence of multiple threads accessing
it concurrently. It may well be that it delivers the same
number for different threads accessing it concurrently
which *MUCH* higher probability as one would expect...
(...)
Ok, this sounds fairly safe to me. Besides, my sites aren't that heavily
loaded yet and I'm actually keeping the installation's default number of
threads (4).
Again, thanks a lot, Dieter.
Pablo
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