elasticsearch : which: no java in (/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin)

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按照下文设置es开机自启之后，
https://blog.csdn.net/jiankunking/article/details/84374354

使用

 systemctl status elasticsearch

启动失败，查看服务状态，报出以下错误：

[root@jiankunking logs]# systemctl status elasticsearch
● elasticsearch.service - elasticsearch
   Loaded: loaded (/etc/systemd/system/elasticsearch.service; enabled; vendor preset: disabled)
   Active: failed (Result: exit-code) since Mon 2019-02-11 09:11:34 CST; 3min 49s ago
  Process: 16665 ExecStart=/home/es/elasticsearch/bin/elasticsearch (code=exited, status=1/FAILURE)
 Main PID: 16665 (code=exited, status=1/FAILURE)

Feb 11 09:11:34 cargo systemd[1]: Started elasticsearch.
Feb 11 09:11:34 cargo systemd[1]: Starting elasticsearch...
Feb 11 09:11:34 cargo elasticsearch[16665]: which: no java in (/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin)
Feb 11 09:11:34 cargo systemd[1]: elasticsearch.service: main process exited, code=exited, status=1/FAILURE
Feb 11 09:11:34 cargo systemd[1]: Unit elasticsearch.service entered failed state.
Feb 11 09:11:34 cargo systemd[1]: elasticsearch.service failed.

解决方法：
查看java安装位置

[root@jiankunking logs]# which java
/usr/local/java/jdk1.8.0_121/bin/java

建立软连接

ln -s /usr/local/java/jdk1.8.0_121/bin/java /usr/bin/java

搞定
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作者：jiankunking 出处：http://blog.csdn.net/jiankunking