service.sh
#!/bin/bash source /etc/profile ################################### # Please change these parameters according to your real env. ################################### # set Java Home: Remember that dolphin only supports JDK8! # JAVA_HOME=/usr/local/jdk1.8.0_60 # check JAVA_HOME if [ x"$JAVA_HOME" == x ]; then echo "==================== Failed! =====================" echo "====== Please set JAVA_HOME ======" echo "==================================================" exit 1 fi # set ulimit ulimit -s 20480 # application directory cd `dirname $0` APP_HOME=`pwd` APP_NAME="$(cd ${APP_HOME} && find -mindepth 1 -maxdepth 1 -name '*.jar' |awk -F'/' '{print $NF}')" # Java JVM lunch parameters if [ x"$JAVA_OPTS" == x ];then JAVA_OPTS="-Djava.awt.headless=true -Djava.net.preferIPv4Stack=true" fi if [ x"$JAVA_MEM_OPTS" == x ];then JAVA_MEM_OPTS="-server -Xms512m -Xmx2g -Xmn768m -Xss256k -XX:+DisableExplicitGC -XX:+UseConcMarkSweepGC -XX:+CMSParallelRemarkEnabled -XX:LargePageSizeInBytes=128m -XX:+UseFastAccessorMethods -XX:+UseCMSInitiatingOccupancyOnly -XX:CMSInitiatingOccupancyFraction=70 " fi # path of log file, because logback can't create missing directory, we need to help it by shell script LOGS_DIR="$APP_HOME/logs" if [ ! -d $LOGS_DIR ]; then mkdir $LOGS_DIR #echo "created logs directory: path=$LOGS_DIR" fi STDOUT_FILE=$LOGS_DIR/out.log # waiting timeout for starting, in seconds START_WAIT_TIMEOUT=30 psid=0 checkpid() { psid=$(/bin/ps aux | grep $APP_NAME |grep -v grep |awk '{print $2}') if [[ -z "$psid" ]]; then psid=0 fi } ################################### #(函数)启动程序 # #说明: #1. checkpid,刷新$psid全局变量 #2. 如果程序已经启动($psid不等于0),则提示程序已启动 #3. 如果程序没有被启动,则执行启动命令行 #4. 启动命令执行后,再次调用checkpid函数 #5. 如果步骤4的结果能够确认程序的pid,则打印[OK],否则打印[Failed] #注意:echo -n 表示打印字符后,不换行 #注意: "nohup 某命令 >/dev/null 2>&1 &" 的用法 ################################### start() { checkpid if [ $psid -ne 0 ]; then echo "================================" echo "warn: $APP_NAME already started! (pid=$psid)" echo "================================" else echo -n "Starting $APP_NAME ..." nohup $JAVA_HOME/bin/java $JAVA_OPTS $JAVA_MEM_OPTS -jar ${APP_HOME}/${APP_NAME} >>$STDOUT_FILE 2>&1 & checkpid if [ $psid -ne 0 ]; then echo "(pid=$psid) [OK]" else echo "[Failed]" fi fi } ################################### #(函数)调试程序 # #说明: #1. checkpid,刷新$psid全局变量 #2. 如果程序已经启动($psid不等于0),则提示程序已启动 #3. 如果程序没有被启动,则执行启动命令行 #4. 启动命令执行后,再次调用checkpid函数 #5. 如果步骤4的结果能够确认程序的pid,则打印[OK],否则打印[Failed] #注意:echo -n 表示打印字符后,不换行 #注意: "nohup 某命令 >/dev/null 2>&1 &" 的用法 ################################### debug() { checkpid if [ $psid -ne 0 ]; then echo "================================" echo "warn: $APP_NAME already started! (pid=$psid)" echo "================================" else echo -n "Starting $APP_NAME ..." nohup $JAVA_HOME/bin/java $JAVA_OPTS $JAVA_MEM_OPTS $PINPOINT_OPTS -Xrunjdwp:transport=dt_socket,address=9080,server=y,suspend=y -jar ${APP_HOME}/${APP_NAME} >>$STDOUT_FILE 2>&1 & checkpid if [ $psid -ne 0 ]; then echo "(pid=$psid) [OK]" else echo "[Failed]" fi fi } ################################### #(函数)停止程序 # #说明: #1. 首先调用checkpid函数,刷新$psid全局变量 #2. 如果程序已经启动($psid不等于0),则开始执行停止,否则,提示程序未运行 #3. 使用kill -9 pid命令进行强制杀死进程 #4. 执行kill命令行紧接其后,马上查看上一句命令的返回值: $? #5. 如果步骤4的结果$?等于0,则打印[OK],否则打印[Failed] #6. 为了防止java程序被启动多次,这里增加反复检查进程,反复杀死的处理(递归调用stop)。 #注意:echo -n 表示打印字符后,不换行 #注意: 在shell编程中,"$?" 表示上一句命令或者一个函数的返回值 ################################### stop() { STOP_WAIT_TIME="30" checkpid if [ $psid -ne 0 ]; then echo -n "Stopping $APP_NAME ...(pid=$psid) " sudo sh -c "kill $psid" let kwait=${STOP_WAIT_TIME} count=0; until [ $psid -eq 0 ] || [ $count -gt $kwait ] do echo -n -e "."; sleep 1 checkpid let count=$count+1; done if [ $count -gt $kwait ];then echo -n -e "\nkilling processes which didn't stop after ${STOP_WAIT_TIME} seconds\n" sudo sh -c "kill -9 $psid" fi echo "[OK]" else echo "================================" echo "warn: $APP_NAME is not running" echo "================================" fi } ################################### #(函数)检查程序运行状态 # #说明: #1. 首先调用checkpid函数,刷新$psid全局变量 #2. 如果程序已经启动($psid不等于0),则提示正在运行并表示出pid #3. 否则,提示程序未运行 ################################### status() { checkpid if [ $psid -ne 0 ]; then echo "$APP_NAME is running! (pid=$psid)" else echo "$APP_NAME is not running" fi } ################################### #(函数)打印系统环境参数 ################################### info() { checkpid echo "System Information:" echo "****************************" echo `head -n 1 /etc/issue` echo `uname -a` echo echo "JAVA_HOME=$JAVA_HOME" echo `$JAVA_HOME/bin/java -version` echo echo "APP_HOME=$APP_HOME" echo "APP_NAME=$APP_NAME" echo if [ $psid -ne 0 ]; then echo "Application is running! (pid=$psid)" else echo "Application is not running" fi echo "****************************" } ################################### #读取脚本的第一个参数($1),进行判断 #参数取值范围:{start|stop|restart|status|info} #如参数不在指定范围之内,则打印帮助信息 ################################### case "$1" in 'debug') stop debug ;; 'start') start ;; 'stop') stop ;; 'restart') stop start ;; 'status') status ;; 'info') info ;; *) echo "Usage: $0 {debug|start|stop|restart|status|info}" exit 1 esac