[imapproxy] configuration advice [was :ImapProxy sessionissue ]

[Christopher Crowley]

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> It isn't necessary, but it could well improve performance.  There
> are certain operations that require IMP to hammer the server, and
> while that is not going on most of the time, when it does it will
> help.  Also, if you have users like me who read a lot of small
> mails really fast (about a message every 4-5 seconds sometimes)
> then it will really speed up their experience.  So even with the
> smallest site, it will help in certain situations.  Maybe your
> overall experience isn't impacted, but the speed of some special
> case situations will be improved, and that is a good thing.
> > 
> There are two uses for imapproxy.  The first is to take some of the
> load off your imap server.  If your imap server is overloaded then
> this is why you want it.  In your small setup, this probably isn't
> an issue.  The second reason is to speed up IMP.  This is where you
> will see the benefit.
> 

I am looking for the former improvement.  The e-mail server cannot
handles the current peak demand. Abouut 1000 users who have to
authenticate for each e-mail they want to read is causing the server
unnecesary work.  An imap process is created, then abandoned for each
of these users.

I installed expect, and have scripts running for each IMAPProxy and
my standard IMAP server.  I think that I will probably include a
'timex expect' in MRTG so that I can graph what happens over time.

Is RedHat Linux a better OS for IMAPProxy? How about AIX 4.3.x ?  I
could put the proxy on any one of the 3 (solaris is the 3rd).  It
doesn't really say in the PERFORMANCE file which OSes are more
recommended.  With the small amount of data available, it seems to be
a toss-up.

Christopher Crowley
TIS Network Services
Tulane University
ccrowley at tulane.edu
504.314.2535
PGP Key ID: 0x7CF18FDB


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