Funny named 8.2 behavior
Mark_Andrews at isc.org
Mark_Andrews at isc.org
Thu Aug 19 00:58:59 UTC 1999
You didn't say which OS this was. BIND 8.2 onwards depends upon
non blocking I/O working. There were some changes in BIND 8.2.1
for certain OSs.
Mark
>
> I keep on again getting funny behavior from named 8.2. Yesterday named was no
> t answering any queries. I
> did a 'netstat -a | grep bind' and found that named was stuck reading from un
> i00ns.unity.ncsu.edu.
> Command 'netstat -n' gave me the Recv-Q having a lot of data but the Send-Q w
> as not reading it.
> Today in the morning, I took a dump of the cache and the stats of my named us
> ing the foll. commands:
>
> kill -INT `cat /var/run/named.pid`
> kill -ILL `cat /var/run/named.pid`
> kill -USR1 `cat /var/run/named.pid`.
>
> And well, after that named started working and was answering queries. I am no
> t sure what is going
> out here. I also again did a netstat and it had the foll. o/p:
> tsgops# netstat -a | grep bind
> udp 0 0 tsgops-bind *-*
> udp 0 0 localhost-bind *-*
> udp 0 0 tsgops1-bind *-*
> tcp 0 0 tsgops-bind *-* LISTEN
> tcp 0 0 localhost-bind *-* LISTEN
> tcp 0 0 tsgops1-bind *-* LISTEN
>
> I don't know why giving the kill signal made it to work again ? And also the
> reason that why should named just
> stop answering queries.
>
> Any suggestions ?
>
> Thanks much.
>
> Tushar
>
>
>
--
Mark Andrews, Internet Software Consortium
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742 INTERNET: marka at isc.org
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