Created
September 9, 2016 09:28
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flume-ng-agent启动脚本(start/status/stop/restat..)
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#!/bin/bash | |
. /lib/lsb/init-functions | |
FLUME_HOME=/mjs/opt/apache-flume-1.6.0-bin | |
cd ${FLUME_HOME} | |
# Name of the agnet | |
FLUME_AGENT_NAME=a1 | |
# Setting up a few defaults that can be later overrideen in /etc/default/flume-ng-agent | |
FLUME_LOG_DIR=./var/log | |
FLUME_CONF_DIR=./conf | |
FLUME_RUN_DIR=./var/run | |
FLUME_LIB=./lib | |
FLUME_USER=root | |
# Autodetect JAVA_HOME if not defined | |
if [ -e /usr/libexec/bigtop-detect-javahome ]; then | |
. /usr/libexec/bigtop-detect-javahome | |
elif [ -e /usr/lib/bigtop-utils/bigtop-detect-javahome ]; then | |
. /usr/lib/bigtop-utils/bigtop-detect-javahome | |
fi | |
STATUS_RUNNING=0 | |
STATUS_DEAD=1 | |
STATUS_DEAD_AND_LOCK=2 | |
STATUS_NOT_RUNNING=3 | |
ERROR_PROGRAM_NOT_INSTALLED=5 | |
FLUME_LOCK_DIR=./var/lock/subsys/ | |
LOCKFILE="${FLUME_LOCK_DIR}/flume-ng-agent" | |
desc="Flume agent daemon" | |
FLUME_CONF_FILE=${FLUME_CONF_FILE:-${FLUME_CONF_DIR}/exec_tail.conf} | |
EXEC_PATH=./bin/flume-ng | |
FLUME_PID_FILE=${FLUME_RUN_DIR}/flume-ng-agent-${FLUME_AGENT_NAME}.pid | |
# These directories may be tmpfs and may or may not exist | |
# depending on the OS (ex: /var/lock/subsys does not exist on debian/ubuntu) | |
for dir in "$FLUME_RUN_DIR" "$FLUME_LOCK_DIR"; do | |
[ -d "${dir}" ] || install -d -m 0755 -o $FLUME_USER -g $FLUME_USER ${dir} | |
done | |
FLUME_SHUTDOWN_TIMEOUT=${FLUME_SHUTDOWN_TIMEOUT:-60} | |
start() { | |
[ -x $exec ] || exit $ERROR_PROGRAM_NOT_INSTALLED | |
checkstatus | |
status=$? | |
if [ "$status" -eq "$STATUS_RUNNING" ]; then | |
exit 0 | |
fi | |
log_success_msg "Starting $desc (flume-ng-agent): " | |
/bin/su -s /bin/bash -c "/bin/bash -c 'echo \$\$ > ${FLUME_PID_FILE} && exec ${EXEC_PATH} agent --conf $FLUME_CONF_DIR --conf-file $FLUME_CONF_FILE --name $FLUME_AGENT_NAME >>${FLUME_LOG_DIR}/flume.${FLUME_AGENT_NAME}.init.log 2>&1 ' &" $FLUME_USER | |
RETVAL=$? | |
[ $RETVAL -eq 0 ] && touch $LOCKFILE | |
return $RETVAL | |
} | |
stop() { | |
if [ ! -e $FLUME_PID_FILE ]; then | |
log_failure_msg "Flume agent is not running" | |
exit 0 | |
fi | |
log_success_msg "Stopping $desc (flume-ng-agent): " | |
FLUME_PID=`cat $FLUME_PID_FILE` | |
if [ -n $FLUME_PID ]; then | |
kill -TERM ${FLUME_PID} &>/dev/null | |
for i in `seq 1 ${FLUME_SHUTDOWN_TIMEOUT}` ; do | |
kill -0 ${FLUME_PID} &>/dev/null || break | |
sleep 1 | |
done | |
kill -KILL ${FLUME_PID} &>/dev/null | |
fi | |
rm -f $LOCKFILE $FLUME_PID_FILE | |
return 0 | |
} | |
restart() { | |
stop | |
start | |
} | |
checkstatus(){ | |
pidofproc -p $FLUME_PID_FILE java > /dev/null | |
status=$? | |
case "$status" in | |
$STATUS_RUNNING) | |
log_success_msg "Flume agent is running" | |
;; | |
$STATUS_DEAD) | |
log_failure_msg "Flume agent is dead and pid file exists" | |
;; | |
$STATUS_DEAD_AND_LOCK) | |
log_failure_msg "Flume agent is dead and lock file exists" | |
;; | |
$STATUS_NOT_RUNNING) | |
log_failure_msg "Flume agent is not running" | |
;; | |
*) | |
log_failure_msg "Flume agent status is unknown" | |
;; | |
esac | |
return $status | |
} | |
condrestart(){ | |
[ -e ${LOCKFILE} ] && restart || : | |
} | |
case "$1" in | |
start) | |
start | |
;; | |
stop) | |
stop | |
;; | |
status) | |
checkstatus | |
;; | |
restart) | |
restart | |
;; | |
condrestart|try-restart) | |
condrestart | |
;; | |
*) | |
echo $"Usage: $0 {start|stop|status|restart|try-restart|condrestart}" | |
exit 1 | |
esac | |
exit $RETVAL |
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