rpm安装Jenkins报错

root@hadoop001 sysconfig]# systemctl start jenkins
Job for jenkins.service failed because the control process exited with error code. See "systemctl status jenkins.service" and "journalctl -xe" for details.
[root@hadoop001 sysconfig]# systemctl status jenkins.service
● jenkins.service - LSB: Jenkins Automation Server
   Loaded: loaded (/etc/rc.d/init.d/jenkins; bad; vendor preset: disabled)
   Active: failed (Result: exit-code) since Wed 2020-01-22 14:48:53 CST; 15s ago
     Docs: man:systemd-sysv-generator(8)
  Process: 30286 ExecStart=/etc/rc.d/init.d/jenkins start (code=exited, status=1/FAILURE)

Jan 22 14:48:53 hadoop001 systemd[1]: Starting LSB: Jenkins Automation Server...
Jan 22 14:48:53 hadoop001 runuser[30291]: pam_unix(runuser:session): session opened for user root by (uid=0)
Jan 22 14:48:53 hadoop001 jenkins[30286]: Starting Jenkins bash: /usr/bin/java: No such file or directory
Jan 22 14:48:53 hadoop001 jenkins[30286]: [FAILED]
Jan 22 14:48:53 hadoop001 systemd[1]: jenkins.service: control process exited, code=exited status=1
Jan 22 14:48:53 hadoop001 systemd[1]: Failed to start LSB: Jenkins Automation Server.
Jan 22 14:48:53 hadoop001 systemd[1]: Unit jenkins.service entered failed state.
Jan 22 14:48:53 hadoop001 systemd[1]: jenkins.service failed.

[root@hadoop001 sysconfig]# cd  /usr/bin/java
-bash: cd: /usr/bin/java: No such file or directory
[root@hadoop001 sysconfig]# vim jenkins
[root@hadoop001 sysconfig]# echo $JAVA_HOME
/opt/module/jdk1.8.0_144
[root@hadoop001 sysconfig]# echo $PATH
/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/opt/module/jdk1.8.0_144/bin:/opt/module/hadoop-2.7.2/bin:/opt/module/hadoop-2.7.2/sbin:/root/bin
[root@hadoop001 sysconfig]# which java
/opt/module/jdk1.8.0_144/bin/java

[root@hadoop001 sysconfig]# ln -s /opt/module/jdk1.8.0_144/bin/java /usr/bin/java
[root@hadoop001 sysconfig]# which java
/usr/bin/java
[root@hadoop001 sysconfig]# systemctl start jenkins
[root@hadoop001 sysconfig]# lsof -i:8888
COMMAND PID USER   FD   TYPE  DEVICE SIZE/OFF NODE NAME
java    997 root  162u  IPv4 1407529      0t0  TCP *:ddi-tcp-1 (LISTEN)