Running Ubuntu 12.04 64bit, the logstash init script does not work.
here's the script that came with logstash deb
In particular I don't understand how the script is trying to parse
something from the logstash pid, before it even starts the program..?
log_daemon_msg "Starting $DESC"
# Parse the actual JAVACMD from the process' environment, we don't
care about errors.
JAVA=$(cat /proc/$(cat "${PID_FILE}" 2>/dev/null)/environ 2>/dev/null
| grep -z ^JAVACMD= | cut -d= -f2)
if start-stop-daemon --test --start --pidfile "$PID_FILE" \
--user "$LS_USER" --exec "$JAVA" \
>/dev/null; then
# Prepare environment
I checked and JAVA is empty at this location, so what the heck is this
trying to do?
running this bit:
sudo start-stop-daemon --test --start --pidfile /var/run/logstash.pid
--user "logstash" --exec ""
results in the same message i get at the commandline when trying to
/etc/init.d/logstash start
start-stop-daemon: unable to stat (No such file or directory)
Please advise.
Full init script pasted below
#!/bin/bash
#
# /etc/init.d/logstash -- startup script for LogStash.
#
### BEGIN INIT INFO
# Provides: logstash
# Required-Start: $all
# Required-Stop: $all
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: Starts logstash
# Description: Starts logstash using start-stop-daemon
### END INIT INFO
set -e
NAME=logstash
DESC="Logstash Daemon"
DEFAULT=/etc/default/$NAME
if [ `id -u` -ne 0 ]; then
echo "You need root privileges to run this script"
exit 1
fi
. /lib/lsb/init-functions
if [ -r /etc/default/rcS ]; then
. /etc/default/rcS
fi
# The following variables can be overwritten in $DEFAULT
PATH=/bin:/usr/bin:/sbin:/usr/sbin
# See contents of file named in $DEFAULT for comments
LS_USER=logstash
LS_GROUP=logstash
LS_HOME=/var/lib/logstash
LS_HEAP_SIZE="500m"
LS_JAVA_OPTS="-Djava.io.tmpdir=${LS_HOME}"
LS_LOG_FILE=/var/log/logstash/$NAME.log
LS_CONF_DIR=/etc/logstash/conf.d
LS_OPEN_FILES=16384
LS_NICE=19
LS_OPTS=""
LS_PIDFILE=/var/run/$NAME.pid
# End of variables that can be overwritten in $DEFAULT
# overwrite settings from default file
if [ -f "$DEFAULT" ]; then
. "$DEFAULT"
fi
# Define other required variables
PID_FILE=${LS_PIDFILE}
DAEMON=/opt/logstash/bin/logstash
DAEMON_OPTS="agent -f ${LS_CONF_DIR} -l ${LS_LOG_FILE} ${LS_OPTS}"
# Check DAEMON exists
if ! test -e $DAEMON; then
log_failure_msg "Script $DAEMON doesn't exist"
exit 1
fi
case "$1" in
start)
if [ -z "$DAEMON" ]; then
log_failure_msg "no logstash script found - $DAEMON"
exit 1
fi
# Check if a config file exists
if [ ! "$(ls -A $LS_CONF_DIR/*.conf 2> /dev/null)" ]; then
log_failure_msg "There aren't any configuration files in
$LS_CONF_DIR"
exit 1
fi
log_daemon_msg "Starting $DESC"
# Parse the actual JAVACMD from the process' environment, we don't
care about errors.
JAVA=$(cat /proc/$(cat "${PID_FILE}" 2>/dev/null)/environ 2>/dev/null
| grep -z ^JAVACMD= | cut -d= -f2)
if start-stop-daemon --test --start --pidfile "$PID_FILE" \
--user "$LS_USER" --exec "$JAVA" \
>/dev/null; then
# Prepare environment
HOME="${HOME:-$LS_HOME}"
JAVA_OPTS="${LS_JAVA_OPTS}"
ulimit -n ${LS_OPEN_FILES}
cd "${LS_HOME}"
export PATH HOME JAVACMD JAVA_OPTS LS_HEAP_SIZE LS_JAVA_OPTS
LS_USE_GC_LOGGING
# Start Daemon
start-stop-daemon --start -b --user "$LS_USER" -c
"$LS_USER":"$LS_GROUP" \
-d "$LS_HOME" --nicelevel "$LS_NICE" --pidfile "$PID_FILE"
--make-pidfile \
--exec $DAEMON -- $DAEMON_OPTS
sleep 1
# Parse the actual JAVACMD from the process' environment, we don't
care about errors.
JAVA=$(cat /proc/$(cat "${PID_FILE}" 2>/dev/null)/environ
2>/dev/null | grep -z ^JAVACMD= | cut -d= -f2)
if start-stop-daemon --test --start --pidfile "$PID_FILE" \
--user "$LS_USER" --exec "$JAVA" \
>/dev/null; then
if [ -f "$PID_FILE" ]; then
rm -f "$PID_FILE"
fi
log_end_msg 1
else
log_end_msg 0
fi
else
log_progress_msg "(already running)"
log_end_msg 0
fi
;;
stop)
log_daemon_msg "Stopping $DESC"
set +e
if [ -f "$PID_FILE" ]; then
start-stop-daemon --stop --pidfile "$PID_FILE" \
--user "$LS_USER" \
--retry=TERM/20/KILL/5 >/dev/null
if [ $? -eq 1 ]; then
log_progress_msg "$DESC is not running but pid file exists,
cleaning up"
elif [ $? -eq 3 ]; then
PID="`cat $PID_FILE`"
log_failure_msg "Failed to stop $DESC (pid $PID)"
exit 1
fi
rm -f "$PID_FILE"
else
log_progress_msg "(not running)"
fi
log_end_msg 0
set -e
;;
status)
set +e
# Parse the actual JAVACMD from the process' environment, we don't
care about errors.
JAVA=$(cat /proc/$(cat "${PID_FILE}" 2>/dev/null)/environ 2>/dev/null
| grep -z ^JAVACMD= | cut -d= -f2)
start-stop-daemon --test --start --pidfile "$PID_FILE" \
--user "$LS_USER" --exec "$JAVA" \
>/dev/null 2>&1
if [ "$?" = "0" ]; then
if [ -f "$PID_FILE" ]; then
log_success_msg "$DESC is not running, but pid file exists."
exit 1
else
log_success_msg "$DESC is not running."
exit 3
fi
else
log_success_msg "$DESC is running with pid `cat $PID_FILE`"
fi
set -e
;;
restart|force-reload)
if [ -f "$PID_FILE" ]; then
$0 stop
sleep 1
fi
$0 start
;;
*)
log_success_msg "Usage: $0 {start|stop|restart|force-reload|status}"
exit 1
;;
esac
exit 0
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