Linux CentOS6.7 jdk1.8.0_11 安装Elasticsearch5.0.1

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环境准备

jdk：1.8.0_111 ES对JDK版本有依赖
elasticsearch：5.0.1

elasticserach下载地址：https://www.elastic.co/downloads/elasticsearch 下载elasticsearch-5.0.1.tar.gz

按个人习惯，移动至/usr/local/software/目录

启动elasticsearch

启动报以下错误：

[2016-11-26T22:22:10,885][WARN ][o.e.b.ElasticsearchUncaughtExceptionHandler] [] uncaught exception in thread [main]org.elasticsearch.bootstrap.StartupException: java.lang.RuntimeException: can not run elasticsearch as rootat org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:116) ~[elasticsearch-5.0.1.jar:5.0.1]at org.elasticsearch.bootstrap.Elasticsearch.execute(Elasticsearch.java:103) ~[elasticsearch-5.0.1.jar:5.0.1]at org.elasticsearch.cli.SettingCommand.execute(SettingCommand.java:54) ~[elasticsearch-5.0.1.jar:5.0.1]at org.elasticsearch.cli.Command.mainWithoutErrorHandling(Command.java:96) ~[elasticsearch-5.0.1.jar:5.0.1]at org.elasticsearch.cli.Command.main(Command.java:62) ~[elasticsearch-5.0.1.jar:5.0.1]at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:80) ~[elasticsearch-5.0.1.jar:5.0.1]at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:73) ~[elasticsearch-5.0.1.jar:5.0.1]Caused by: java.lang.RuntimeException: can not run elasticsearch as rootat org.elasticsearch.bootstrap.Bootstrap.initializeNatives(Bootstrap.java:96) ~[elasticsearch-5.0.1.jar:5.0.1]at org.elasticsearch.bootstrap.Bootstrap.setup(Bootstrap.java:155) ~[elasticsearch-5.0.1.jar:5.0.1]at org.elasticsearch.bootstrap.Bootstrap.init(Bootstrap.java:286) ~[elasticsearch-5.0.1.jar:5.0.1]at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:112) ~[elasticsearch-5.0.1.jar:5.0.1]... 6 more

由于ElasticSearch可以接收用户输入的脚本并且执行，为了系统安全考虑，不允许root账户启动。

修改ElasticSearch目录及启动账号。

重新启动ElasticSearch

./elasticsearch-5.0.1/bin/elasticsearch

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