Nginx does not re-open log files on SIGUSR1.
gmm at csdoc.com
Mon Jan 3 15:01:53 MSK 2011
On 03.01.2011 13:38, Piotr Sikora wrote:
>> I think this is bug, I saw that after logrotate (which on the end
>> running SIGUSR1 on master process) my access log is empty. However if
>> I do SIGHUP it starts working. Looks like Nginx does not re-open
>> logfiles after USR1.
> $ sudo pkill -USR1 nginx
pkill send USR1 signal to all nginx processes,
not only master, but also all worker processes
in random order - it may be first workers, and last master.
if worker processes does not have write permissions
to /var/log/nginx directory - worker processes can`t
create new log files, and can't write to log files.
USR1 signal must be sent only to nginx master process
and only as postrotate script:
# cat /etc/logrotate.d/nginx
[ ! -f /var/run/nginx.pid ] || kill -USR1 `cat /var/run/nginx.pid`
# documentation: http://sysoev.ru/nginx/docs/control.html#logs
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