Firespeaker: Created page with "==What we want == An init script for apertium-apy that starts the and stops the daemon, and preferably logs its stdout and stderr. ==The problems== === Logging === Can't..."

2014-01-13T22:36:10Z

Created page with "==What we want == An init script for apertium-apy that starts the and stops the daemon, and preferably logs its stdout and stderr. ==The problems== === Logging === Can't..."

New page

==What we want ==
An init script for [[apertium-apy]] that starts the and stops the daemon, and preferably logs its stdout and stderr.

==The problems==

=== Logging ===
Can't figure out how to log stdout or stderr with start-stop-daemon (if it's not possible I'll eat my hat, but I'm just can't find the appropriate information on how to do this)

=== Subprocesses are not being killed when the parent process is killed ===
The parent process pid is kept track of and sent a kill signal. However, the server thread(s) runs in its own pid(s), and these remain running even after the parent thread is killed. We found what we thought is [http://tornadogists.org/4643396/ a work-around], but it seems to just make sure the parent thread and other children are killed when one child is killed.

== The current init script ==
<pre>
#!/bin/bash
#
# bot initscript
#
# Last Updated: Oct 31, 2011
# Modified for Apertium on Jan 11, 2014
# If broken, yell at: firespeaker
#

### BEGIN INIT INFO
# Provides: apy
# Required-Start: $network
# Required-Stop: $network
# Default-Start: 3 4 5
# Default-Stop: 0 1 6
# Short-Description: Apertium APY, Apertium API in Python
### END INIT INFO

SERVLET="servlet.py"
EXEC="/traductors/apertium-apy/"
ARGS="-l tools/turkic.db ../pairs"
USER="www-data"

start_apy() {
start-stop-daemon -S -c $USER -p /var/run/$SERVLET.pid -m -d $EXEC -b -x $EXEC/$SERVLET -- $ARGS
SUCCESS=$?
if [ $SUCCESS -gt 0 ]; then
echo "ERROR: Couldn't start $SERVLET"
fi
return $SUCCESS
}

stop_apy() {
start-stop-daemon -K -p /var/run/$SERVLET.pid
SUCCESS=$?
if [ $SUCCESS -gt 0 ]; then
echo "ERROR: Couldn't stop $SERVLET"
fi
return $SUCCESS
}

case "$1" in
start)
echo "Starting $SERVLET"
start_apy
;;
stop)
echo "Stopping $SERVLET"
stop_apy
;;
restart)
echo "Restarting $SERVLET"
stop_apy
if [ $? -gt 0 ]; then
exit -1
fi
start_apy
;;
force-reload)
echo "Restarting $SERVLET"
stop_apy
if [ $? -gt 0 ]; then
exit -1
fi
start_apy
;;
status)
if [ -e /var/run/$SERVLET.pid ]; then
exit 0
fi
exit 3
;;
*)
echo "Usage: /etc/init.d/$SERVLET {start, stop, restart, force-reload, status}"
exit 1
;;
esac

exit 0
</pre>

Apertium-apy/Sysvinit issues - Revision history

Firespeaker: Created page with "==What we want == An init script for apertium-apy that starts the and stops the daemon, and preferably logs its stdout and stderr. ==The problems== === Logging === Can't..."