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README.md

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+## opencron
+
+
+一个强大的linux定时任务调度系统.一个功能完善真正通用的linux定时任务调度定系统,满足多种场景下各种复杂的定时任务调度,同时集成了linux实时监控,webssh,提供一个方便管理定时任务的平台.
+
+你是否有定时执行任务计划的需求,需要在linux的crontab里一一定义任务?
+ -  需要在每台linux服务器的crontab里一一定义任务
+ -  任务的执行监控太不方便了
+ -  得登录到每台机器查看定时任务的运行结果,机器一多简直是一种灾难
+ -  对于多台机器协同处理一个任务很麻烦,如何保证多台机器上的任务按顺序依次执行?
+ -  当任务运行失败,要重新执行,还得重新定义下执行时间,让其重跑,重跑完成了还得改回正常时间
+ -  正在运行的任务要kill掉很麻烦,查看进程然后才能kill
+......
+
+opencron的出现将彻底的解决上面所有问题.功能如下:
+ -  自动化管理任务,提供可操作的web图形化管理
+ -  要当场执行只需点击执行即可,非常方便
+ -  时间规则支持quartz和crontab,更强大更灵活
+ -  非常方便的修改任务的执行时间
+ -  任务的运行状态实时查看
+ -  支持任务kill(包括由当前任务调起的其他子任务链,彻底kill)
+ -  支持重新执行正在运行的任务
+ -  出错后实时通知给任务人(超过重跑次数自动发送邮件,短信)
+ -  支持任务超时设置,一旦超过预定运行时长自动kill,任务结束,防止僵尸任务
+ -  支持流程任务(多台机器上协同完成一个大的任务,按任务分配的顺序依次执行每台机器上的任务)
+ -  记录任务的运行日志,非常方便查看
+ -  多用户多角色
+ -  现场执行(选择N台机器同时执行一个命令或任务)
+ -  webssh,在浏览器一键ssh登录到linux服务器
+ -  提供服务器的性能实时监控
+ ......
+
+
+## 运行环境
+
+Java JDK 1.7 or greater
+http://www.oracle.com/technetwork/java/javase/overview/index.html
+
+Tomcat server 7.0 or greater
+https://tomcat.apache.org
+
+Nginx 1.3 or greater
+http://nginx.org
+
+Browser 
+IE10+
+
+## 安装步骤
+
+ opencron分为两个opencron-server端和opencron-agent端，opencron-server端即为一个web可视化的中央管理调度平台,opencron-agent为要管理的任务的机器,每个要纳入中央统一管理的机器都必须安装opencron-agent, opencron-agent在要管理的服务器中安装执行完后，可以直接在opencron-server添加当前的机器.
+
+
+## Opencron-agent 安装步骤:
+```
+1·)下载编译好的opencron-agent-${version}.tar.gz包
+
+2)部署agent，将opencron-agent-${version}.tar.gz包拷贝到要管理任务的目标服务器,解包,会看到以下目录
+---bin/
+|  startup.sh         #agent的启动脚本,调用的是opencron.sh来完成
+|  shutdown.sh        #agent停止脚本，调用的是opencron.sh来完成
+|  opencron.sh         #agent控制启动|停止的脚本
+|  monitor.sh         #实时监控获取数据需要的脚本,由系统调度
+|  kill.sh            #kill任务时需要的脚本,由系统调度
+---conf/
+| log4j.properties    #log4j配置文件
+---lib/
+| *.jar               #agent运行需要的jar文件
+---temp/
+| *.sh                #用于存放项目生成的零时文件的目录
+---logs
+| opencron.out         #项目启动会产生的Log文件
+
+> tar -xzvf opencron-agent-${version}.tar.gz
+3)启动opencron-agent 进入opencron-agent/bin
+> cd opencron-agent/bin
+> sh startup.sh
+这里可以接受两个参数，分别是服务启动的端口和密码，默认端口是:1577,默认密码:opencron
+如要指定参数启动命令如下:
+> sh startup.sh -P10001 -p123456
+参数说明:
+-P (大写的p)为agent启动的端口，选填，如果不输入默认启动端口是1577
+-p (小写的p)为当前agent的连接密码,选填，如果不输入默认连接该机器的密码是opencron
+启动完后会看到有一个opencron.pid，这个文件记录了当前agent进程的pid.更多详细的启动，运行日志请查看logs/opencron.out
+
+4)停止opencron-agent 进入opencron-agent/bin 执行：
+> cd opencron-agent/bin
+> sh shutdown.sh
+
+```
+
+## Opencron-server 部署步骤:
+
+```
+1):下载已经编译好的opencron-server-${version}.war包
+
+2):更改项目的mysql连接信息和memcached连接,mysql和memcached配置在config.properties里，更改即可:
+如:
+--mysql
+jdbc.driver=com.mysql.jdbc.Driver
+jdbc.url=jdbc:mysql://${you_mysql_host}:3306/opencron?useUnicode=true&characterEncoding=UTF-8
+jdbc.username=${user}
+jdbc.password=${password}
+
+3)发布到tomcat或者其他的web服务器启动即可.第一次会自动创建表,默认初始用户名opencron,密码opencron
+
+4):进入到opencron的管理端第一件要做的事情就是添加要管理的执行器.在菜单的第二栏点击"执行器管理"->添加执行器,执行器ip，就是上面你部署的opencron-agent的机器ip，端口号是要连接的opencron-agent的启动端口，密码也是opencron-agent端的连接密码,输入ip,端口和密码后点击"检查通信",如果成功则server和agnet端已经成功通信，server可以管理agent了,添加保持即可.如果连接失败，
+可能有一下即可原因:
+1):agent端启动失败,检查logs,查看详情
+2):检查agent端口是否开放(如很多云服务器得开放端口才能访问)
+```  
+
+更多问题请加入opencron交流群156429713,欢迎大家加入
+