Burton, thanks for the replies, they have given me some direction to
look.

I read through previous posts and can make out only part of what you're
saying, as I am not a coder, I do have a little C/C++ knowledge and can
make some sense of it, but that's about as far as it goes.

However, I will toss out a few tidbits I learned today.

1. I did find that in 3.2 that if I do not use the -c option, sessions
will purge more often and the max number of sessions rides a lot
smoother.  There is a reason I started using -c about six months ago,
but don't need to make this post any longer.

2. The application that I spoke of that does tons of little short
sessions must be what is helping to cause the unsavory behavior.  I
watched Active TCP sessions grow and grow, filling to the brim with the
aforementioned traffic.

3.  Version 3.0 does indeed startup with --disable-instantsessionpurge
set to "no" by default, and 3.2 sets it to "yes" (with either setting).

Ultimately, it seems to me that the change of
--disable-instantsessionpurge to a new default of 'yes' AND the influx
of the new application's behaviour is causing me some difficulties.  I
have learned to skirt the issue with -c, but that's the way it goes I
guess.

Nathan Choate


-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of
Burton Strauss
Sent: Friday, March 31, 2006 12:14 PM
To: [email protected]
Subject: RE: [Ntop] NTOP fails because of max sessions reached

Read back over what I said in the long reply - the small # of currently
active sessions could be setting the purge limit per cycle low too keep
up.
If that's the case, you'll see the # of stored sessions (in the
textinfo.html report) grow, while the # of active sessions stays roughly
constant...

-----Burton

-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of
[EMAIL PROTECTED]
Sent: Friday, March 31, 2006 9:04 AM
To: [email protected]
Subject: RE: [Ntop] NTOP fails because of max sessions reached

I fired up the 3.0 version to find that the disable-instantsession purge
was
NO by default.

Now you're saying that in 3.2 it's set to YES by default with now way to
turn it off?

I have looked at the globals-defines.h file you mentioned.  Is there any
settings I can make there, to set the behaviour back to where it won't
run
out of max sessions?  My network isn't so busy that were running that
many
session over a 5m span.  It definitely grows over a time of several
hours
until it max's out.

Nathan Choate


-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of
Burton Strauss
Sent: Thursday, March 30, 2006 6:08 PM
To: [email protected]
Subject: RE: [Ntop] NTOP fails because of max sessions reached

 --disable-instantsessionpurge should be the default ... It is the
correct
functionality.  We simply didn't want to make a big change like that
just
before the release.  I need to check the ./configure stuff and correct
the
docs - maybe make the option --enable-instantsessionpurge or some such.

-----Burton


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