Re: Connection refused under heavy load

Eloy A. Paris wrote:
>
> Hi,
>
> I am using Squid 1.1.10 and Linux kernel 2.0.30. When simulationg heavy load
> using the tcp-banger.pl script I get the error "connection refused" when
> simulating a large number of connections (10000). "netstat -a" shows a lot
> of TCP connections as "TIME_WAIT".

Probably 10000 simultaneous connections are too much havoc for your
machine. When you are simulating this, please fire another TTY and
issue:

kommandant:/# ifconfig
lo Link encap:Local Loopback
          inet addr:127.0.0.1 Bcast:127.255.255.255 Mask:255.0.0.0
          UP BROADCAST LOOPBACK RUNNING MTU:3584 Metric:1
          RX packets:28 errors:0 dropped:0 overruns:0
          TX packets:28 errors:0 dropped:0 overruns:0

eth0 Link encap:10Mbps Ethernet HWaddr 00:20:18:2A:38:4F
          inet addr:194.224.238.210 Bcast:194.224.238.223
Mask:255.255.255.240
          UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
          RX packets:363 errors:0 dropped:0 overruns:0
          TX packets:279 errors:0 dropped:0 overruns:0
          Interrupt:11 Base address:0x6200

kommandant:/#

You get something like this, revise the line who says RX packets and TX
packets it's possible that you have some problems here. It's a good
practice (sorry for the off-topic) to put PCI based cards like 3Com
3c900/905XL or Intel Etherexpress PRO 100/PCI.

Greetings
        Alfonso Correas

 -- Comm Networks
Received on Tue May 27 1997 - 03:00:25 MDT