Hi,
I downloaded .tar version of logstash 2.3.3 and trying to running it as service, but it fails. My system is Red Hat Enterprise Linux Server release 6.6 (Santiago).
When I am testing configuration file everything's ok:
./bin/logstash -f /var/opt/logstash-2.3.3/config/05-redis.conf --configtest
Configuration OK'
When I am starting logstash it also works fine:
./bin/logstash -f /var/opt/logstash-2.3.3/config/05-redis.conf
Settings: Default pipeline workers: 4
Pipeline main started
When I am trying to start logstash as a service it fails. I'm using init script that was used with logstash 1.5 (maybe this is the root cause, but it worked with logstash 1.5) :
#!/bin/sh
# Init script for logstash
# Maintained by Elasticsearch
# Generated by pleaserun.
# Implemented based on LSB Core 3.1:
PATH=/sbin:/usr/sbin:/bin:/usr/bin
export PATH
if [ `id -u` -ne 0 ]; then
echo "You need root privileges to run this script"
exit 1
fi
name=logstash
pidfile="/var/run/$name.pid"
LS_USER=elk
LS_GROUP=elk
LS_HOME=/var/opt/logstash-2.3.3
LS_HEAP_SIZE="500m"
LS_JAVA_OPTS="-Djava.io.tmpdir=${LS_HOME}"
LS_LOG_DIR=/var/opt/logstash-2.3.3/log
LS_LOG_FILE="${LS_LOG_DIR}/$name.log"
LS_CONF_DIR=/var/opt/logstash-2.3.3/config
LS_OPEN_FILES=16384
LS_NICE=19
LS_OPTS=""
[ -r /etc/default/$name ] && . /etc/default/$name
[ -r /etc/sysconfig/$name ] && . /etc/sysconfig/$name
program=$LS_HOME/bin/logstash
args="agent -f ${LS_CONF_DIR} -l ${LS_LOG_FILE} ${LS_OPTS}"
start() {
JAVA_OPTS=${LS_JAVA_OPTS}
HOME=${LS_HOME}
export PATH HOME JAVA_OPTS LS_HEAP_SIZE LS_JAVA_OPTS LS_USE_GC_LOGGING
# set ulimit as (root, presumably) first, before we drop privileges
ulimit -n ${LS_OPEN_FILES}
# Run the program!
nice -n ${LS_NICE} chroot --userspec $LS_USER:$LS_GROUP / sh -c "
cd $LS_HOME
ulimit -n ${LS_OPEN_FILES}
exec \"$program\" $args
" > "${LS_LOG_DIR}/$name.stdout" 2> "${LS_LOG_DIR}/$name.err" &
# Generate the pidfile from here. If we instead made the forked process
# generate it there will be a race condition between the pidfile writing
# and a process possibly asking for status.
echo $! > $pidfile
echo "$name started."
return 0
}
stop() {
# Try a few times to kill TERM the program
if status ; then
pid=`cat "$pidfile"`
echo "Killing $name (pid $pid) with SIGTERM"
kill -TERM $pid
# Wait for it to exit.
for i in 1 2 3 4 5 ; do
echo "Waiting $name (pid $pid) to die..."
status || break
sleep 1
done
if status ; then
echo "$name stop failed; still running."
else
echo "$name stopped."
fi
fi
}
status() {
if [ -f "$pidfile" ] ; then
pid=`cat "$pidfile"`
if kill -0 $pid > /dev/null 2> /dev/null ; then
# process by this pid is running.
# It may not be our pid, but that's what you get with just pidfiles.
# TODO(sissel): Check if this process seems to be the same as the one we
# expect. It'd be nice to use flock here, but flock uses fork, not exec,
# so it makes it quite awkward to use in this case.
return 0
else
return 2 # program is dead but pid file exists
fi
else
return 3 # program is not running
fi
}
force_stop() {
if status ; then
stop
status && kill -KILL `cat "$pidfile"`
fi
}
case "$1" in
start)
status
code=$?
if [ $code -eq 0 ]; then
echo "$name is already running"
else
start
code=$?
fi
exit $code
;;
stop) stop ;;
force-stop) force_stop ;;
status)
status
code=$?
if [ $code -eq 0 ] ; then
echo "$name is running"
else
echo "$name is not running"
fi
exit $code
;;
restart)
stop && start
;;
*)
echo "Usage: $SCRIPTNAME {start|stop|force-stop|status|restart}" >&2
exit 3
;;
esac
exit $?
I am starting logstash:
service logstash start
logstash started.
But it does not start:
service logstash status
logstash is not running
My RedHat is not connected to internet so .tar file seemed to be good option. I also added elk user to adm group which did not help
Thanks in advance for all hints!