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multiwatch(1) General Commands Manual multiwatch(1) NAME multiwatch - forks and watches multiple instances of a program in the same environment SYNOPSIS multiwatch [options] -- <application> [app arguments] multiwatch -v multiwatch --help | -? DESCRIPTION multiwatch is used to fork and watch multiple FastCGI backends. OPTIONS -f, --forks=children Number of children to fork and watch (default 1) -r, --retry=retries Number of retries to fork a single child (default 3) -t, --timeout=msecs Retry timeout in ms; if the child dies after the timeout the retry counter is reset (default 10000 ms = 10 s) -s, --signal=signame Signal to send to children to signal 'graceful' termination (HUP,INT,QUIT,TERM,USR1,USR2, default is USR1) -?, --help General usage instructions -v, --version Show version and exit SIGNAL HANDLING multiwatch will forward the signal USR2; if it receives HUP,INT,QUIT,TERM or USR1, it will send the signal from --signal to the children; if it re- ceives another signal from that group, it will forward the signal again. A signal of the group HUP,INT,QUIT,TERM and USR1 tells multiwatch to go into "shutdown" mode, so it won't restart children after receiving it. EXAMPLE Spawn 2 rails instances on the same FastCGI socket (and supervise them): spawn-fcgi -s /tmp/fastcgi-rails.sock -n -- /usr/bin/multiwatch -f 2 /home/rails/public/dispatch.fcgi SEE ALSO spawn-fcgi(1) AUTHOR Stefan Buehler <stbuehler@web.de>. September 17, 2010 multiwatch(1)
NAME | SYNOPSIS | DESCRIPTION | OPTIONS | SIGNAL HANDLING | EXAMPLE | SEE ALSO | AUTHOR
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