logstash+elasticsearch 错误摘记

　　

[2017-09-17T06:00:22,511][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:136) ~[elasticsearch-5.6.0.jar:5.6.0]
	at org.elasticsearch.bootstrap.Elasticsearch.execute(Elasticsearch.java:123) ~[elasticsearch-5.6.0.jar:5.6.0]
	at org.elasticsearch.cli.EnvironmentAwareCommand.execute(EnvironmentAwareCommand.java:67) ~[elasticsearch-5.6.0.jar:5.6.0]
	at org.elasticsearch.cli.Command.mainWithoutErrorHandling(Command.java:134) ~[elasticsearch-5.6.0.jar:5.6.0]
	at org.elasticsearch.cli.Command.main(Command.java:90) ~[elasticsearch-5.6.0.jar:5.6.0]
	at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:91) ~[elasticsearch-5.6.0.jar:5.6.0]
	at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:84) ~[elasticsearch-5.6.0.jar:5.6.0]
Caused by: java.lang.RuntimeException: can not run elasticsearch as root
	at org.elasticsearch.bootstrap.Bootstrap.initializeNatives(Bootstrap.java:106) ~[elasticsearch-5.6.0.jar:5.6.0]
	at org.elasticsearch.bootstrap.Bootstrap.setup(Bootstrap.java:195) ~[elasticsearch-5.6.0.jar:5.6.0]
	at org.elasticsearch.bootstrap.Bootstrap.init(Bootstrap.java:342) ~[elasticsearch-5.6.0.jar:5.6.0]
	at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:132) ~[elasticsearch-5.6.0.jar:5.6.0]
	... 6 more

　　

如上错误解决办法：

创建普通用户，和用户组,并需要更改属组，属主

[root@vm1 elasticsearch-5.6.0]# useradd elsearch -g elsearch -p elasticsearch
[root@vm1 app]# chown -R elsearch:elsearch elasticsearch-5.6.0

./bin/logstash -f /etc/logstash/conf.d/ela.conf  --verbose  测试Logstash与ela连通性报错“503”

{
  "error" : {
    "root_cause" : [ ],
    "type" : "search_phase_execution_exception",
    "reason" : "all shards failed",
    "phase" : "query",
    "grouped" : true,
    "failed_shards" : [ ]
  },
  "status" : 503
}

　

解决办法：

这个错误是elasticsearch的问题，更改一下elasticsearch的启动默认文件配置

vi config/elasticsearch.yml

在配置文件里添加：

network.host: 0.0.0.0
http.cors.allow-origin: "/.*/"
http.cors.enabled: true

然后重新启动elasticsearch即可解决