java.lang.RuntimeException: can not run elasticsearch as root

忘寫了一個錯誤：

[o.e.b.ElasticsearchUncaughtExceptionHandler] [] uncaught exception in thread [main]
org.elasticsearch.bootstrap.StartupException: java.lang.RuntimeException: can not run elasticsearch as root
        at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:136) ~[elasticsearch-5.6.2.jar:5.6.2]
        at org.elasticsearch.bootstrap.Elasticsearch.execute(Elasticsearch.java:123) ~[elasticsearch-5.6.2.jar:5.6.2]
        at org.elasticsearch.cli.EnvironmentAwareCommand.execute(EnvironmentAwareCommand.java:67) ~[elasticsearch-5.6.2.jar:5.6.2]
        at org.elasticsearch.cli.Command.mainWithoutErrorHandling(Command.java:134) ~[elasticsearch-5.6.2.jar:5.6.2]
        at org.elasticsearch.cli.Command.main(Command.java:90) ~[elasticsearch-5.6.2.jar:5.6.2]
        at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:91) ~[elasticsearch-5.6.2.jar:5.6.2]
        at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:84) ~[elasticsearch-5.6.2.jar:5.6.2]
Caused by: java.lang.RuntimeException: can not run elasticsearch as root
        at org.elasticsearch.bootstrap.Bootstrap.initializeNatives(Bootstrap.java:106) ~[elasticsearch-5.6.2.jar:5.6.2]
        at org.elasticsearch.bootstrap.Bootstrap.setup(Bootstrap.java:195) ~[elasticsearch-5.6.2.jar:5.6.2]
        at org.elasticsearch.bootstrap.Bootstrap.init(Bootstrap.java:342) ~[elasticsearch-5.6.2.jar:5.6.2]
        at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:132) ~[elasticsearch-5.6.2.jar:5.6.2]
        ... 6 more

 這個錯誤，是因為使用root用戶啟動elasticsearch，elasticsearch是不允許使用root用戶啟動的，所以我們需要添加用戶。

adduser ***   //添加用戶

passwd ***  //給用戶賦值

添加完用戶之后：

用root用戶執行 ： chown -R 文件夾名 用戶名

將這幾個壓縮包所在的文件夾及解壓完的文件夾權限給你新建的用戶。之后再使用新用戶啟動就OK了。

 

參考鏈接：http://www.cnblogs.com/xd502djj/archive/2011/11/23/2260094.html