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Is it possible to configure nginx to create a new access log for a given host per minute?

An external process/application will be reading from these log files, and I want to make sure there are no file locking issues etc., so if I can have nginx create a new log file every minute, this way I can make sure I don't touch the current minutes log file.

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  • FYI there are no issues with locking when one process is reading and another process is writing the file. In my setup I have a perl script which continually reads the nginx logs and spits out per minute stats, and the log file are rotated every 24 hours.
    – Sameer
    Dec 1, 2012 at 3:58

2 Answers 2

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Just going to quote from the developer here:

If you really want logging to an external process - try using mkfifo(1), but please keep in mind that this will lead to service interruption if your logging process won't be able to cope with load. I would recommend logging to a normal file and using "tail -F /path/to/log | script" instead if you need some log processing.

See also: Proper way to rotate Nginx logs

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Nginx official documentation: Rotating Log-files

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  • Thanks, but how do you "After that USR1 signal should be sent to the master process." ? Dec 11, 2012 at 18:40
  • See man kill - one of the most basic unix/linux commands.
    – VBart
    Dec 11, 2012 at 21:48
  • Also nginx -s reopen (see man nginx)
    – VBart
    Dec 11, 2012 at 23:56
  • so they are suggesting to actually shutdown the nginx server, so the site will be down for a split second during this log rotating process? Dec 14, 2012 at 21:25
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    You don't need to shutdown nginx, just send USR1 signal.
    – VBart
    Dec 15, 2012 at 0:44

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