When reloading nginx-0.8.54, number of workers increases

[Valentin V. Bartenev]

On Thursday 24 May 2012 14:10:47 zealot83 wrote:
> Hello.
> 
> This is the situation:
> 
> I giva heavy traffic continually by using ApacheBench, say:
> while :; do ab -n 100000 -c 1000 'http://localhost/; done.
> And also I reload nginx continually by using while syntax.
> When looking at the master/worker process by using ps command,
> the number of worker processes increase in a moment.
> 
> [irteam at mvdev02.global ~]$ ps aux|grep nginx
> nobody   16879  0.0  0.0   4112   884 ?        R    18:43   0:00 nginx:
> worker process
> nobody   16881  0.0  0.0   4168  1160 ?        S    18:43   0:00 nginx:
> worker process
> root     16882  0.0  0.0      0     0 pts/3    Z+   18:43   0:00 [nginx]
> <defunct>
> root     16883  0.0  0.0   3976   392 ?        R    18:43   0:00 nginx:
> master process ./sbin/nginx
> irteam   16885  0.0  0.0   5200   772 pts/6    R+   18:43   0:00 grep
> nginx
> root     23791  0.3  0.0   3976  1004 ?        Rs   18:00   0:08 nginx:
> master process ./sbin/nginx
> [irteam at mvdev02.global ~]$ ps aux|grep nginx
> nobody   17610  0.0  0.0   4116   920 ?        R    18:43   0:00 nginx:
> worker process
> nobody   17616  0.0  0.0   4112   896 ?        R    18:43   0:00 nginx:
> worker process
> nobody   17620  0.0  0.0   4112   904 ?        S    18:43   0:00 nginx:
> worker process is shutting down
> nobody   17623  0.0  0.0   4248  1232 ?        R    18:43   0:00 nginx:
> worker process is shutting down
> nobody   17625  0.0  0.0   4112  1080 ?        S    18:43   0:00 nginx:
> worker process
> irteam   17628  0.0  0.0   5200   752 pts/6    R+   18:43   0:00 grep
> nginx
> root     23791  0.3  0.0   3976  1004 ?        Ss   18:00   0:08 nginx:
> master process ./sbin/nginx
> [irteam at mvdev02.global ~]$ ps aux|grep nginx
> nobody   18071  0.0  0.0   4116   828 ?        R    18:43   0:00 nginx:
> worker process
> irteam   18082  0.0  0.0   5200   752 pts/6    R+   18:43   0:00 grep
> nginx
> nobody   18083  0.0  0.0   4112   864 ?        S    18:43   0:00 nginx:
> worker process
> root     23791  0.3  0.0   3976  1004 ?        Ss   18:00   0:08 nginx:
> master process ./sbin/nginx
> [irteam at mvdev02.global ~]$ ps aux|grep nginx
> nobody   18361  135  0.0   4244  1236 ?        R    18:43   0:01 nginx:
> worker process
> root     18408  0.0  0.0   8896  1604 pts/3    R+   18:43   0:00 sudo
> ./sbin/nginx -s reload
> irteam   18410  0.0  0.0   5200   756 pts/6    R+   18:43   0:00 grep
> nginx
> root     23791  0.3  0.0   3980  1004 ?        Rs   18:00   0:08 nginx:
> master process ./sbin/nginx
> 
> I use the default configuration which is generated when installed
> nginx-0.8.54
> so worker_process is 1 and add no third party module.
> 
> Please help me.
> Thank you!
> 

Here is explained:
http://nginx.org/en/docs/control.html#reconfiguration

 wbr, Valentin V. Bartenev