Number of CPUs detected by Bind 9.4.2 on 4 CPU system running RedHat es 4.

Adam Tkac atkac at redhat.com
Tue Apr 1 12:23:02 UTC 2008


On Mon, Mar 31, 2008 at 11:59:10AM -0600, greg kuechle wrote:
> Hello,
> I have install bind 9.4.2 on a system with 4 CPUs running RedHat es4. I
> compiled named with the --enable-threads  and used the -n 4 flag when I
> start named.
> 
> Mar 31 10:12:24 ******** named[4897]: starting BIND 9.4.2  -t /opt/named
> -u named -n 4 -c /etc/named.conf
> Mar 31 16:12:24 ******** named[4897]: found 1 CPU, using 4 worker threads
> 
> Before I upgraded the system it was running an older version of named that
> comes packaged with the OS.
> Here is the output from the logfile.
> Mar 24 11:34:13 ******** named[5877]: starting BIND 9.2.4
> Mar 24 11:34:13 ******** named[5877]: using 4 CPUs
> 
> Did I compile named wrong?
> 
> Will BIND 9.4.2 use all of the CPUs if I use the -n 4 option at startup?
> 
> It looks like named is only running on one CPU. Will named start using the
> other CPUs once one CPU is up to 100% ?
> 
> 
> Thank you for any help.
> 

I think you forgot mount /proc filesystem into chroot. You can try it again
with /proc mounted in chroot (for example $mount --bind /proc ${CHROOT}/proc)

Adam

-- 
Adam Tkac, Red Hat, Inc.


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