jenkins 启动失败：Job for jenkins.service failed because the control process exited with error code. See

在安装部署jenkins之后 启动失败问题

错误代码：jenkins提示运行 systemctl status jenkins.service 查看 jenkins 错误位置

Job for jenkins.service failed because the control process exited with error code. See "systemctl status jenkins.service" and "journalctl -xe" for details.

systemctl status jenkins.service

jenkins 需要jdk。Starting Jenkins bash: /usr/bin/java 没有那个文目录

解决方案
1. 查看当前Java的环境变量 echo $JAVA_HOME
运行什么都没有** 执行 source /etc/profile

2. 复制Java的环境变量，vim/etc/init.d/jenkins文件, 找到指定位置添加
/usr/local/jdk/jdk1.8.0_251/bin/java后缀附上/bin/java

再重启jenkins服务

systemctl start jenkins

结果出现一个警告：并且提示 运行 : systemctl daemon-reload 重新加载

systemctl daemon-reload

systemctl restart jenkins