Re: ServerIron stale connections

From: Bill McCaffrey (bill@neopets.com)
Date: Fri Sep 13 2002 - 03:50:54 EDT


This is what I am running currently. I will check out the upgrade, thanks.

 SW: Version 07.3.04T12 Copyright (c) 1996-1999 Foundry Networks, Inc.
     Compiled on Mar 07 2002 at 11:46:40 labeled as SLB07304

----- Original Message -----
From: "Brent Van Dussen" <brent@vandussen.com>
To: "Bill McCaffrey" <bill@neopets.com>; <foundry-nsp@puck.nether.net>
Sent: Friday, September 13, 2002 12:39 AM
Subject: Re: ServerIron stale connections

> Bill,
>
> What code you running? Sounds similar to some problems we ran into that
> were fixed by a code patch. The new 7.3 SI code allows you to clear
> sessions I believe, would have to check the release notes to be sure.
>
> -Brent
>
>
> At 12:12 AM 9/13/2002, Bill McCaffrey wrote:
> >Hi
> >
> >I have about 50 web servers running RedHat 6.2 being served by a
ServerIron.
> >Some of the real servers get "stuck" connections that never go away.
These
> >accummulate over time on the load balancer and cause the traffic
> >distribution to be uneven. Sometimes the number of sessions will even go
> >down to zero yet the connections remain. The only way I have found to
clear
> >them is to do a reboot. I have tried both connection balancing and
session
> >balancing but neither one works properly.
> >
> >The web server are identical in hardware, software and configuration. Yet
> >this only occurs to certain servers, not all. I also have another
ServerIron
> >with the same kernel handling 100 servers that does not have this
problem.
> >The only difference I can see between them is that this one has peak
traffic
> >of around 85mbs whereas the other only gets up to around 40. Above 70 mbs
> >the difference between inbound and outbound start to seperate like there
is
> >some sort of packet loss occuring. I am planning on upgrading it to a
> >gigabit connection but I am not sure if this will handle it.
> >
> >My questions are:
> >
> >Has anyone seen this type of behavior or have any ideas on what is
causing
> >it?
> >Is there a way to view or clear the real server connections without
> >rebooting?
> >
> >Thanks,
> >
> >Bill McCaffrey
> >bill@neopets.com
>



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