Bind 9 stress test error message.

[Mark_Andrews at isc.org]

> 
> I'm running Bind 9.2 on six Sol 8 boxes w/512MB RAM.
> 
> I'm stress-testing it using the following command:
> 
> [Loop start]
> dig @server -f [dns db] +short +noanswer +search +ignore
> dig @server -f [dns db] +short +noanswer +search +ignore +tcp
> [loop end]
> 
> The file is my DNS db with just the names (about 3000 records). The
> other options pare the output down to nothing, since I don't really
> care about the output, just the volume of lookups.
> 
> They seem to be working fine (roughly 7.5 million look-ups in 24
> hours) but I get the following message on all six as well:
> 
> dig: isc_socket_connect: unexpected error
> socket.c: 2962: 125/Address already in use
> 
> Any idea what the error might be?

	Well you are creating thousands of short lived TCP connections each
	of which has a certian minimum life span.  You are most probably
	creating these faster than the system can clean them up.

--
Mark Andrews, Internet Software Consortium
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742                 INTERNET: Mark.Andrews at isc.org