java - 启动 Jenkins bash :/usr/bin/java: No such file or directory

Question

我有一个 CentOS 服务器，我正在尝试将 jenkins 作为服务运行:

service jenkins start

我以 root 用户身份运行，我收到以下响应:

Starting Jenkins bash: /usr/bin/java: No such file or directory
                                                       [FAILED]

我在命令行中echo了一些东西:

[root@xyz opt]# echo $JAVA_HOME
/opt/jdk
[root@xyz opt]# echo $PATH
/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin:/root/bin:/opt/jdk/bin:/opt/grails/bin
[root@xyz opt]# java -version
java version "1.7.0_45"
Java(TM) SE Runtime Environment (build 1.7.0_45-b18)
Java HotSpot(TM) 64-Bit Server VM (build 24.45-b08, mixed mode)
[root@xyz opt]# which java
/opt/jdk/bin/java

我在任何 jenkins 文件中都看不到任何 java 配置。有什么想法吗？

Answer 1

Jenkins needs java to start and in your case in /usr/bin/ directory java is not available

如果你去 /etc/init.d/ 并打开 jenkins 文件你会发现:

candidates="
/etc/alternatives/java
/usr/lib/jvm/java-1.6.0/bin/java
/usr/lib/jvm/jre-1.6.0/bin/java
/usr/lib/jvm/java-1.7.0/bin/java
/usr/lib/jvm/jre-1.7.0/bin/java
/usr/lib/jvm/java-1.8.0/bin/java
/usr/lib/jvm/jre-1.8.0/bin/java
/usr/bin/java
"

这些是 jenkins 寻找 java 的路径，在您的情况下，java 不存在于上述任何路径中。

因此，寻找您拥有 java 的路径，并将该路径添加到上面的 jenkins 文件中。

既然你在 /opt/jdk/bin 中有 java，那么在 jenkins 文件中添加:

    candidates="
/opt/jdk/bin/java <----Add here 
/etc/alternatives/java
/usr/lib/jvm/java-1.6.0/bin/java
/usr/lib/jvm/jre-1.6.0/bin/java
/usr/lib/jvm/java-1.7.0/bin/java
/usr/lib/jvm/jre-1.7.0/bin/java
/usr/lib/jvm/java-1.8.0/bin/java
/usr/lib/jvm/jre-1.8.0/bin/java
/usr/bin/java
"