bind 9.6.1 under perform after running for a couple of hours

[Imri Zvik]

Hi,

 

After a couple of hours, performance of bind 9.6.1 suddenly drops. While the
server remains responsive, the response time increases, the rate of the
failed queries increases, and CPU/load average usage increases. Restarting
named solves the problem.

 

I cannot find anything useful in the logs, but a quick search in this
mailing list archive shows that other users reported somewhat similar
problems with this version of BIND :(

 

The operating system is Linux (Linux ns1 2.6.18-128.el5 #1 SMP Wed Dec 17
11:41:38 EST 2008 x86_64 x86_64 x86_64 GNU/Linux) , Red Hat Enterprise Linux
Server release 5.3 (Tikanga).

 

Output of named -V:

BIND 9.6.1 built with '--enable-threads' '--enable-largefile'
'--prefix=/usr/local'

 

/usr/local/sbin/named: ELF 64-bit LSB executable, AMD x86-64, version 1
(SYSV), for GNU/Linux 2.6.9, dynamically linked (uses shared libs), for
GNU/Linux 2.6.9, not stripped

 

It is important to state that we just upgraded from 9.4.3-P2.

 

Any ideas?

 

 

 

 

 

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.isc.org/pipermail/bind-users/attachments/20090708/10e22526/attachment.html>