mysql hiding from top
ws at au.dyndns.ws
Sun May 3 15:20:31 UTC 2009
On Mon, 2009-04-27 at 18:49 +0200, Zbigniew Szalbot wrote:
> Today I have finally upgraded my system to 7.1-RELEASE and just noticing
> that mysql process is not being shown via the top command.
> PID USERNAME THR PRI NICE SIZE RES STATE C TIME WCPU COMMAND
> 1612 root 1 20 0 9212K 6716K pause 2 0:26 0.00% perl5.8.9
> 966 www 1 8 0 8236K 5452K nanslp 2 0:22 0.00% perl5.8.9
> 1594 root 1 20 0 8740K 6220K pause 0 0:12 0.00% perl5.8.9
> However, if you grep processes, you can see it should be displayed in the
> top entries.
> $ ps ax |grep mysql
> 32880 p0- I 0:00.00 /bin/sh /usr/local/bin/mysqld_safe...
> 32906 p0- S 1:33.72 /usr/local/libexec/mysqld...
> I can live with that but maybe there's some explanation for this?
>From the manpage for top(1):
DISPLAY OF THREADS
The '-H' option will toggle the display of kernel visible thread con-
texts. At runtime the 'H' key will toggle this mode. The default is
Should reveal the "missing" thread(s). This was raised by someone else
last November also examining mysqld. Look for a thread titled "top
incorrectly reporting process time".
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