elasticsearch不能使用root启动问题解决

问题:

  es安装好之后,使用root启动会报错:can not run elasticsearch as root

[root@iZbp1bb2egi7w0ueys548pZ bin]# ./elasticsearch
[2019-01-21T09:50:59,387][WARN ][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:134) ~[elasticsearch-6.0.0.jar:6.0.0]
    at org.elasticsearch.bootstrap.Elasticsearch.execute(Elasticsearch.java:121) ~[elasticsearch-6.0.0.jar:6.0.0]
    at org.elasticsearch.cli.EnvironmentAwareCommand.execute(EnvironmentAwareCommand.java:69) ~[elasticsearch-6.0.0.jar:6.0.0]
    at org.elasticsearch.cli.Command.mainWithoutErrorHandling(Command.java:134) ~[elasticsearch-6.0.0.jar:6.0.0]
    at org.elasticsearch.cli.Command.main(Command.java:90) ~[elasticsearch-6.0.0.jar:6.0.0]
    at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:92) ~[elasticsearch-6.0.0.jar:6.0.0]
    at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:85) ~[elasticsearch-6.0.0.jar:6.0.0]
Caused by: java.lang.RuntimeException: can not run elasticsearch as root
    at org.elasticsearch.bootstrap.Bootstrap.initializeNatives(Bootstrap.java:104) ~[elasticsearch-6.0.0.jar:6.0.0]
    at org.elasticsearch.bootstrap.Bootstrap.setup(Bootstrap.java:171) ~[elasticsearch-6.0.0.jar:6.0.0]
    at org.elasticsearch.bootstrap.Bootstrap.init(Bootstrap.java:322) ~[elasticsearch-6.0.0.jar:6.0.0]
    at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:130) ~[elasticsearch-6.0.0.jar:6.0.0]
    ... 6 more

原因:

  为了安全不允许使用root用户启动

解决:

  es5之后的都不能使用添加启动参数或者修改配置文件等方法启动了,必须要创建用户

 

  1、创建用户:elasticsearch

[root@iZbp1bb2egi7w0ueys548pZ bin]# adduser elasticsearch

  2、创建用户密码,需要输入两次

[root@iZbp1bb2egi7w0ueys548pZ bin]# passwd elasticsearch

  3、将对应的文件夹权限赋给该用户

[root@iZbp1bb2egi7w0ueys548pZ local]# chown -R elasticsearch elasticsearch-6.0.0

  4、切换至elasticsearch用户

[root@iZbp1bb2egi7w0ueys548pZ etc]# su elasticsearch

  5、进入启动目录启动 /usr/local/elasticsearch-6.0.0/bin  使用后台启动方式:./elasticsearch -d

[elasticsearch@vmt10003 bin]$ ./elasticsearch -d

  6、启动后测试

  输入curl ip:9200,如果返回一个json数据说明启动成功

 

 

可能遇到的问题

  1、启动后访问ip:9200没有显示json

  

[root@iZbp1bb2egi7w0ueys548qZ ~]# curl 10.132.131.51:9200
curl: (7) Failed connect to 10.132.131.51:9200; Connection refused

 

  解决:

  修改elasticsearch.yml文件,添加

  network.host: 0.0.0.0

  再次启动就可以了

[root@iZbp1bb2egi7w0ueys548qZ ~]# curl 10.132.131.51:9200
{
  "name" : "dMD7fZd",
  "cluster_name" : "elasticsearch",
  "cluster_uuid" : "Cy4a99t2Sw2_hnJ_jtdRgA",
  "version" : {
    "number" : "6.0.0",
    "build_hash" : "8f0685b",
    "build_date" : "2017-11-10T18:41:22.859Z",
    "build_snapshot" : false,
    "lucene_version" : "7.0.1",
    "minimum_wire_compatibility_version" : "5.6.0",
    "minimum_index_compatibility_version" : "5.0.0"
  },
  "tagline" : "You Know, for Search"
}

 

posted @ 2019-01-21 10:42  秋寻草  阅读(...)  评论(...编辑  收藏