init project

deploy.sh

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+#!/bin/bash
+
+# 服务器部署脚本
+# doc:
+# 1.在Idea中下载安装阿里云Alibaba Cloud插件
+# 2.使用Ecs的AccessKeyId和AccessSecurity登录，服务器信息里有具体密码
+# 3.在upload选项中选择需要上传的jar包，location默认为根路径/，
+# command中输入脚本运行命令：sh /deploy.sh stopUpdateStart /usr/local/zapp/user/zapp-user-1.0.jar /usr/local/zapp/user notPrint
+# 注：
+# /deploy.sh脚本包括了，启动服务器，优雅停止java服务器，更新文件，重新启动服务器的脚本，对应四个命令：start|stop|update|stopUpdateStart。
+# 其中stopUpdateStart会按照顺序执行，stop，update，start命令。
+
+# usage:
+# sh deploy.sh start /usr/local/zapp/gateway/zapp-gateway-1.0.jar /usr/local/zapp/gateway
+# sh deploy.sh stop gateway
+# sh deploy.sh update /usr/local/zapp/gateway/zapp-gateway-1.0.jar
+# sh deploy.sh stopUpdateStart /usr/local/zapp/gateway/zapp-gateway-1.0.jar /usr/local/zapp/gateway
+# start启动服务器，/usr/local/zapp/gateway/zapp-gateway-1.0.jar是jar包的绝对路径，/usr/local/zapp/gateway是日志的输出路径
+# stop关闭服务器，会使用jps | grep gateway，抓取需要关闭的java进程
+# update更新jar包，默认会使用根路径/zapp-gateway-1.0.jar下的jar包去更新/usr/local/zapp/gateway/zapp-gateway-1.0.jar路径的jar包
+# stopUpdateStart，按顺序执行命令stop，update，start
+
+# 相关参数命令
+# java -XX:+PrintFlagsInitial，查看jvm全部参数的默认值
+#
+# @author jaysunxiao
+# @version 1.0
+ */
+
+if [ $# -lt 1 ]; then
+    echo "deploy.sh脚本使用错误，命令参数不合法"
+    echo "usage: sh deploy.sh start|stop|update|stopUpdateStart"
+    exit 1
+fi
+
+command=${1}
+
+function waitAllProcessesExit() {
+    while true; do
+        local runningProcesses
+        runningProcesses=$(jps -lvm | grep ${1})
+
+        if [ -n "${runningProcesses}" ]; then
+            echo "正在关闭以下Java进程${1}："
+            echo "${runningProcesses}"
+            sleep 3
+        else
+            echo "已正常关闭所有${1}进程"
+            return
+        fi
+    done
+}
+
+# 停止所有进程,不包括login
+function stop() {
+    echo "-------------------------------------------------------------------------------------------------------------------------------------->stop"
+    local pids
+    pids=$(jps | grep ${1} | awk '{print $1}' | paste -d " " -s)
+
+    if [ -z "${pids}" ]; then
+        echo "没有找到任何包含${1}关键字的Java进程"
+        return
+    fi
+
+    echo "----------------------------------------------------------------------------------------->cpu"
+    uptime
+    echo "注："
+    echo "uptime查看cpu的负载情况，load avarage分别是1分钟，5分钟，15分钟内系统的load值"
+    echo "一般load值不大于3，我们就认为它的负载是正常的，大于了3就要想办法降低系统的负载"
+
+    echo "----------------------------------------------------------------------------------------->内存"
+    free -m
+    echo "注："
+    echo "free查看内存的使用情况，重点关注swap内存使用，swap大表示物理内存不够用，这时候容易导致OOM异常"
+
+    echo "----------------------------------------------------------------------------------------->磁盘"
+    df -h
+    echo "注："
+    echo "df查看磁盘的使用情况，应该特别关注日志和数据库的挂载路径的使用情况"
+
+    echo "----------------------------------------------------------------------------------------->网络"
+    sar -n DEV 1 2
+    echo "注："
+    echo "sar查看网络的使用情况，可以通过网络设备的吞吐量，判断网络设备是否已经饱和。"
+
+    echo "----------------------------------------------------------------------------------------->系统日志"
+    dmesg | tail -n 20
+    echo "注："
+    echo "df查看系统日志的最后20行，主要看有没有严重的系统问题"
+
+    echo "----------------------------------------------------------------------------------------->jmap实例数量"
+    for pid in ${pids}; do
+        echo "${pid}->进程的class实例数量前20信息"
+        jmap -histo ${pid} | head -n 20
+        echo -e "\n"
+    done
+
+    echo "----------------------------------------------------------------------------------------->开始执行终止Java进程命令"
+    echo "kill -15 $pids"
+    kill -15 ${pids}
+
+    waitAllProcessesExit ${1}
+}
+
+# 启动一个java进程，必须指定jar路径和jar名称
+# -n为notEmpty，-z为empty
+function start() {
+    echo "-------------------------------------------------------------------------------------------------------------------------------------->start"
+    local jarPath=${1}
+    local logPath=${2}
+
+    if [ -z "${jarPath}" ]; then
+        echo "启动的路径不能为空"
+        echo "usage: sh deploy.sh start jarPath logPath"
+        exit 1
+    fi
+
+    if [ -z "${logPath}" ]; then
+        echo "启动的jar包名称不能为空"
+        echo "usage: sh deploy.sh start jarPath logPath"
+        exit 1
+    fi
+
+    mkdir -p "${logPath}/log"
+    cd ${logPath}
+
+    # -XX:+AlwaysPreTouch，并置零内存页面，可能令得启动时慢上一点，但后面访问时会更流畅，比如页面会连续分配
+    nohup java -XX:+UseG1GC -XX:InitialHeapSize=4g -XX:MaxHeapSize=4g -XX:MaxMetaspaceSize=256m -XX:AutoBoxCacheMax=20000 -XX:+UseStringDeduplication -XX:+DisableExplicitGC -XX:+HeapDumpOnOutOfMemoryError -Djdk.attach.allowAttachSelf=true -Dspring.profiles.active=pro -Dfile.encoding=UTF-8 -jar ${jarPath} >/dev/null 2>&1 &
+
+    # 如果没有info的log，则等待一秒钟
+    local infoLog
+    infoLog=$(ls ./log | grep info)
+    if [ -z "${infoLog}" ]; then
+        sleep 1
+    fi
+
+    if [ -z "${3}" ]; then
+        tailf log/info.log
+    else
+        sleep 4
+        local jarName=${jarPath##*/}
+        local runningProcesses
+        runningProcesses=$(jps -lvm | grep ${jarName})
+        echo "----------------------------------------------------------------------------------------->jps信息"
+        echo "${runningProcesses}"
+
+        sleep 4
+        echo "----------------------------------------------------------------------------------------->jstat编译统计信息"
+        local pids
+        pids=$(jps | grep ${jarName} | awk '{print $1}' | paste -d " " -s)
+        for pid in ${pids}; do
+            echo "${pid}->进程的编译统计信息"
+            jstat -compiler ${pid}
+            echo -e "\n"
+        done
+
+        sleep 6
+        echo "----------------------------------------------------------------------------------------->启动信息"
+        tail -n 40 log/info.log
+
+        exit 0
+    fi
+}
+
+# 更新jar包
+function update() {
+    echo "-------------------------------------------------------------------------------------------------------------------------------------->update"
+    local jarPath=${1}
+
+    if [ -z "${jarPath}" ]; then
+        echo "需要被更新的jar路径不能为空"
+        echo "usage: sh deploy.sh update jarPath"
+        exit 1
+    fi
+
+    local jarFilePath=${jarPath%/*}
+    local jarName=${jarPath##*/}
+
+    # echo ${jarFilePath}
+    # echo ${jarName}
+
+    echo "更新之前源文件和目标文件信息:"
+    local fileInfo=$(ls -lh "/${jarName}")
+    echo "${fileInfo}"
+
+    if [ -f "${jarPath}" ]; then
+        fileInfo=$(ls -lh ${jarPath})
+        echo "${fileInfo}"
+    fi
+
+    echo -e "\n\n"
+
+    rm -rf ${jarPath}
+    mkdir -p ${jarFilePath}
+    cp "/${jarName}" ${jarFilePath}
+
+    echo "更新之后源文件和目标文件信息:"
+    fileInfo=$(ls -lh "/${jarName}")
+    echo "${fileInfo}"
+    fileInfo=$(ls -lh ${jarPath})
+    echo "${fileInfo}"
+}
+
+function stopUpdateStart() {
+    echo "-------------------------------------------------------------------------------------------------------------------------------------->stopUpdateStart"
+    local jarPath=${1}
+    local logPath=${2}
+
+    if [ -z "${jarPath}" ]; then
+        echo "启动的路径不能为空"
+        echo "usage: sh deploy.sh start jarPath logPath"
+        exit 1
+    fi
+
+    if [ -z "${logPath}" ]; then
+        echo "启动的jar包名称不能为空"
+        echo "usage: sh deploy.sh start jarPath logPath"
+        exit 1
+    fi
+
+    echo "开始按顺序执行任务： stop -> update -> start"
+    echo -e "\n\n"
+    local jarFilePath=${jarPath%/*}
+    local jarName=${jarPath##*/}
+
+    # 先停止
+    stop ${jarName}
+    # 再更新
+    update ${jarPath}
+    # 最后启动
+    start ${jarPath} ${logPath} ${3}
+}
+
+# Linux性能调优
+function optimizeLinux() {
+    echo "-------------------------------------------------------------------------------------------------------------------------------------->性能调优"
+}
+# 立即执行调优
+optimizeLinux
+
+case ${command} in
+"start")
+    start ${2} ${3}
+    ;;
+"stop")
+    stop ${2}
+    ;;
+"update")
+    update ${2}
+    ;;
+"stopUpdateStart")
+    stopUpdateStart ${2} ${3} ${4}
+    ;;
+*)
+    echo "命令无法识别: ${1}"
+    echo "usage: sh deploy.sh start|stop|udpate|stopUpdateStart"
+    ;;
+esac
+
+exit 0