canal开机自启动

1. cd /etc/init.d/ 进入目录
2. 创建文件canal,把下面内容粘贴进去，修改java路径和canal安装路径。

#!/bin/bash
#
#chkconfig: 345 63 37
#description: canal
#processname: canal

export JAVA_HOME=/usr/local/java/jdk1.8.0_161/
export PATH=$JAVA_HOME/bin:$PATH

CANAL_HOME=/usr/local/canal/adapter

case $1 in
  start)
    sh $CANAL_HOME/bin/startup.sh
    echo "canal is started"
    ;;
  stop)
    sh $CANAL_HOME/bin/stop.sh
    echo "canal is stop"
    ;;
  restart)
    sh $CANAL_HOME/bin/stop.sh
    sh $CANAL_HOME/bin/startup.sh
    echo "canal is started"
    ;;
  *)
    echo "start|stop|restart"
    ;;
esac
exit 0

• 给脚本添加权限chmod 755 canal
• 添加服务到开机项 chkconfig --add canal
• 设置为开机启动 chkconfig canal on
• 测试 service canal start

发现一个有意思的事情,canal 如果不正常退出服务,比如虚拟机强制重启等,canal开机就无法正常启动,报错如下
found adapter.pid , Please run stop.sh first ,then startup.sh canal is started;
说的就是找到了adapter.pid 请先运行stop.sh,实际上canal服务已经停止了.
这个时候就简单点;