NFS as a rule is a bad idea - there's a stateless protocol involved (you
don't know if the server is up or down unless you actually try to write),
the lockd for NFS incurs yet another set of communications, and it's not
very robust for this kind of thing (no replication for failovers).
A database is ideally suited for this kind of thing; if you have DB2 already
running on AIX I'd suggest using it since you can replicate, failover, etc.
should the need arise someday.Thne facilities to do this are tightly
integrated into the product and they _do_ work - I set up and AIX/DB2/load
balance/replication/HA solution at my last company using DB2 as the session
handler for a BEA Weblogics server system.
MySQL on the Linux box is a solution, also, but the replication strategy is
a bit rough compared to other solutions and you'll have to make sure that
you don't use table level locks by accident. PostgreSQL is of course yet
another solution ...
In any event you may want to check through the PHP archives for examples of
database session handlers.
----- Original Message -----
From: "Michael Champagne" <[EMAIL PROTECTED]>
To: "PHP General Mailing List" <[EMAIL PROTECTED]>
Sent: Monday, September 17, 2001 10:49 AM
Subject: [PHP] Handling sessions between servers?
> Is it possible to handle sessions with PHP between separate web servers?
We
> have 2 Apache servers and would like to share session data between them.
If
> we keep the session data on an NFS mounted drive -- will this work? Would
it
> be better to write custom session handlers to store session data in a
database
> accessible from both servers? It seems like this should be possible, but
I'm
> not quite sure how to go about doing it. Also, this is on 2 separate
> platforms. One is RedHat Linux 7.1 and the other server is on AIX 4.3.3.
>
> Thanks in advance for any replies,
> Mike
>
>
>
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