Public bug reported:
"reload php5-fpm" with upstart does not work.
php5-fpm will crash and leave non-working child processes hanging around
that will block any recovery until they are killed off manually.
This is because php5-fpm does not handle SIGHUP. It results in an
uncontrolled exit. After telling upstart to instead use SIGUSR2 on
reload*, things work as expected.
* "reload signal SIGUSR2" in upstart php5-fpm.conf
Signals handled by php5-fpm seems to be:
* SIGINT, SIGTERM: immediate termination
* SIGQUIT: graceful stop
* SIGUSR1: re-open log file
* SIGUSR2: graceful reload of all workers + reload of fpm conf/binary
Ubuntu 13.10, amd64
ii php5-fpm 5.5.3+dfsg-1ubuntu2 amd64
server-side, HTML-embedded scripting language (FPM-CGI binary)
** Affects: php5 (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1242376
Title:
"reload php5-fpm" crashes
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