Nameserver problem - named uses 98% CPU

[Danny Mayer]

At 12:13 PM 1/19/02, Reidar Nordin wrote:

>Hi
>I've got a bit of a problem and I was wondering if anyone has seen this
>before or knows what's going on.
>When i start named everything runs fine, but then suddenly, (after a few
>hours) named uses 98% of the CPU and does not answer anymore.
>I restart named and then everything works fine again.
>
>The last time it happened i got this in my log, (just before):
>
>Jan 19 17:03:15 ns1 named[458]: Lame server on
>'20.96.37.211.in-addr.arpa' (in '96.37.211.IN-ADDR.ARPA'?):
>[210.94.0.7].53 'ns.hananet.net'
>Jan 19 17:03:16 ns1 named[458]: Lame server on
>'20.96.37.211.in-addr.arpa' (in '96.37.211.IN-ADDR.ARPA'?):
>[210.180.98.69].53 'ns2.hananet.net'
>Jan 19 17:03:15 ns1 named[458]: Lame server on
>'20.96.37.211.in-addr.arpa' (in '96.37.211.IN-ADDR.ARPA'?):
>[210.94.0.7].53 'ns.hananet.net'
>Jan 19 17:03:16 ns1 named[458]: Lame server on
>'20.96.37.211.in-addr.arpa' (in '96.37.211.IN-ADDR.ARPA'?):
>[210.180.98.69].53 'ns2.hananet.net'
>Jan 19 17:04:48 ns1 named[458]: IP/TCP connection from
>[211.79.6.124].3285 (fd 6)
>Jan 19 17:04:48 ns1 named[458]: IP/TCP connection from
>[211.79.6.124].3285 (fd 6)
>Jan 19 17:04:49 ns1 named[458]: IP/TCP connection from
>[211.79.6.124].3318 (fd 8)
>Jan 19 17:04:49 ns1 named[458]: IP/TCP connection from
>[211.79.6.124].3318 (fd 8)

These are debug messages, so somewhere you must have turned on
debug.  In fact there's a minor bug here in that it should be TCP/IP
and not IP/TCP.  Turning on debug can use up lots of CPU.  Turn
it off and see if things return to normal.

Danny