>
> > - User 1 logs in to webserver 1, gets session id abc123
> >
> > - User 2 logs in to webserver 2, gets session id abc123 and trashes
> > current contents of abc123 session file
>
> If using NFS as the session store, you don't even have to get this specific
> -- one
> user using "his" session from two servers simultaneously will eventually see
> problems.
>
I'm still not sure WHY they will see problems. What is the difference
of 2 servers using a common store compared to 1 server with multiple accesses
to a single store?
>
> Oh, here's another example that just came to mind. It didn't happen under SQM
> 1.2.x, but under 1.4.x with NFS-shared userprefs files, I observed the entire
> file
> being lost and started from scratch. I was able to cause this to happen a
> couple
> dozen times without finding out exactly what was causing it, but it seems
> consistent with what we've been discussing. That prompted a quick switch to
> SQL-based prefs.
>
I wish you had found out what caused it. I know I had alot of problems
when I mistakenly forgot to turn on statd/lockd at first. Once I did that,
things seemed to have calmed down immensely. The only issue I can see causing
this problem is locking issues.
I could go to SQL prefs, we do have a DB running... Sorta just
defeats why NFS is in use in the first place. :)
Thanks, Tuc
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