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Document external log rotation support via SIGUSR2 #7265

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bneradt merged 1 commit into from
Oct 12, 2020
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Document external log rotation support via SIGUSR2 #7265

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8 changes: 8 additions & 0 deletions doc/appendices/command-line/traffic_manager.en.rst
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Expand Up @@ -52,6 +52,14 @@ SIGHUP
SIGINT, SIGTERM
These signals cause :program:`traffic_manager` to exit after also shutting down :program:`traffic_server`.

SIGUSR2
This signal causes the :program:`traffic_manager` and :program:`traffic_server` processes to close
and reopen their file descriptors for all of their log files. This allows the use of external
tools to handle log rotation and retention. For instance, logrotate(8) can be configured to rotate
the various |ATS| logs and, via the logrotate postrotate script, send a `-SIGUSR2` to the
:program:`traffic_manager` process. After the signal is received, |ATS| will stop logging to the
now-rolled files and will reopen log files with the originally configured log names.

Exponential Back-off Delay
==========================

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