SUMMARY: socket: All ports in use

Greetings,
It appears that setting
tcp_time_wait_interval to 60000
is a common practice.
I have received different feedback on the
two tcp parameters:  tcp_close_wait_interval and
tcp_time_wait_interval , some say they the
same and some say they are not; reading the
description of each parameter, suggests that
they are very similar or the same.
I confirmed that Solaris 8 dynamically
adjusts the number of pseudo terminals (pts)
so there is no need for pty_cnt in
/etc/system file.

Many thanks to everyone who replied, specially:
Darren Dunham
John Leadeham
Tim Chipman




---- Vahid Moghaddasi sunman@ureach.com
wrote ----

> To: " Sun-Managers"
<sunmanagers@sunmanagers.org>
> From: Vahid Moghaddasi <sunman@ureach.com>
> Reply-To: <sunman@ureach.com>
> Subject: socket: All ports in use 
> Date: Tue, 15 Oct 2002 15:14:38 -0400
> 
> 
> Hi everyone,
> We have a mixed solaris 2.6 and 8 web server
> environment (in process of upgrading), every
> time they push a large amount of data using
> rdist, they get the "socket: All ports in
> use" error on solaris 2.6 systems.
> I know that I have to either increase the
> number of pts's or lower the TCP time_wait.
> Here are my questions:
> 1- Is it safe to just lower
> tcp_time_wait_interval to 60000 on all web
> servers?
> 2- Are tcp_close_wait_interval and
> tcp_time_wait_interval the same thing with
> different names on different Solaris versions?
> 3- What if I add: set pty_cnt=256 and the
> above parameter on both solaris 8 and
> solaris 2.6? what do I lose?
> 
> Any suggestion would help,
> Thank you and I will summarize.
> Vahid.
> 
>
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