我只是按照这个指南通过 APT 安装 Elasticsearch： https://www.elastic.co/guide/en/elasticsearch/reference/5.0/deb.html
当我运行curl -X GET 'http://127.0.0.1:9200/'（或本地主机）时收到一个错误：Failed to connect to 127.0.0.1 port 9200: Connection refused
在我的配置中，我使用：
network.bind_host: localhost
network.publish_host: 0.0.0.0
network.host: 0.0.0.0
http.port: 9200
我的日志/var/log/elasticsearch/是空白的，但查看后sudo journalctl --unit elasticsearch我看到：
Starting Elasticsearch...
Started Elasticsearch.
elasticsearch.service: Main process exited, code=killed, status=9/KILL
elasticsearch.service: Unit entered failed state.
elasticsearch.service: Failed with result 'signal'.
Starting Elasticsearch...
Started Elasticsearch.
elasticsearch.service: Main process exited, code=killed, status=9/KILL
elasticsearch.service: Unit entered failed state.
elasticsearch.service: Failed with result 'signal'.
Starting Elasticsearch...
Started Elasticsearch.
elasticsearch.service: Main process exited, code=killed, status=9/KILL
elasticsearch.service: Unit entered failed state.
elasticsearch.service: Failed with result 'signal'.
...
我如何才能查明此服务上线过程中遇到的阻碍？
答案1
撤消您的配置更改并且服务应该启动：
bind_host默认为network.host（在您的情况下为0.0.0.0），但您强制为localhost？（0.0.0.0！= localhost）network.host- 出于安全原因，我不会设置为0.0.0.0（默认值127.0.0.1：）http.port- 默认设置为 9200。