On 10.07.24 14:20, Tom Marcoen (EXT) wrote:
My server has four (virtual; it runs on vSphere) CPUs and also shows four lines
in `ss` output.
The `ps` command shows the `-U` which - I assume - is set automatically
triggered by the number of CPUs.
# ps -elf | grep named
5 S named 23769 1 9 80 0 - 251941 do_sig 07:12 ? 00:39:02
/usr/local/sbin/named -U4 -u named -c /usr/local/etc/namedb/named.conf
The manpage says:
-U #listeners
This option tells named the number of #listeners worker threads
to listen on, for incoming UDP packets on each address. If not
specified, named calculates a default value based on the number
of detected CPUs: 1 for 1 CPU, and the number of detected CPUs
minus one for machines with more than 1 CPU.
So if not specified, the value of "-U" should be set to 3 with four CPUs.
Also, the parameter "-U" usually does not show up in the ps output if not
specified.
So in your case it looks more like named is specifically started with "-U4"?
- Thomas
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