当前位置： 首页 >> ES >> ES常见错误

---

ES常见错误

2023-09-03 22:19:32 星期日  发表于北京  阅读：551

---

 本文介绍ES在日常使用中遇到的问题和解决方案 #### 访问HTTP 9200端口 Connection Refused 启动ES服务后，通过HTTP接口访问ES，连接被拒绝 ```bash curl -XGET "http://172.16.91.3:9200" curl: (7) Failed to connect to 172.16.91.3 port 9200: Connection refused ``` 最开始以为是防火墙的问题， 弄了半天，其实不是。需要修改ES的配置文件 ```bash cd $ES_HOME/config vim elasticsearch.yml ``` 打开network.host的注释，并修改其值为 0.0.0.0 ``` network.host: 0.0.0.0 ``` 重启ES服务 #### ES节点无效Error1 >[2021-03-25T19:44:38,583][ERROR][o.e.b.Bootstrap ] [vm1.libins.cn] node validation exception [1] bootstrap checks failed. You must address the points described in the following [1] lines before starting Elasticsearch. bootstrap check failure [1] of [1]: max file descriptors [4096] for elasticsearch process is too low, increase to at least [65535] 解决方法 `vim /etc/security/limits.conf` 在文件最后面追加两行 ``` * soft nofile 65536 * hard nofile 65536 ``` 重启ES服务 #### ES节点无效Error2 >[2021-03-25T19:44:38,583][ERROR][o.e.b.Bootstrap ] [vm1.libins.cn] node validation exception [1] bootstrap checks failed. You must address the points described in the following [1] lines before starting Elasticsearch. bootstrap check failure [1] of [1]: max virtual memory areas vm.max_map_count [65530] is too low, increase to at least [262144] 解决方法 `vim /etc/sysctl.conf` 在文件最后添加 ``` vm.max_map_count=655360 ``` 使配置生效 `sysctl -p` 重启ES服务 #### ES节点无效Error3 >[2021-03-25T19:44:38,583][ERROR][o.e.b.Bootstrap ] [vm1.libins.cn] node validation exception [1] bootstrap checks failed. You must address the points described in the following [1] lines before starting Elasticsearch. bootstrap check failure [1] of [1]: the default discovery settings are unsuitable for production use; at least one of [discovery.seed_hosts, discovery.seed_providers, cluster.initial_master_nodes] must be configured 解决方法 修改ES配置文件 ``` cd $ES_HOME/config vim elasticsearch.yml ``` 打开以下参数注释 `node.name: node-1` 再打开以下参数注释，并设置其值为node-1 `cluster.initial_master_nodes: ["node-1"]` 重启ES服务