CentOS 7下简单配置 Elasticsearch集群

环境说明：
ASP站长网服务器（系统版本CentOS 7）
elasticsearch版本: elasticsearch-6.2.2
elasticsearch目录: /home/soft/
 
 192.168.33.10  master
 192.168.33.11  master data
 192.168.33.12  master data
 
一、创建es运行帐号 【三台机器都统一用户为es】
useradd es
passwd es
 
二、创建数据目录与日志目录【三台机器都一样】
 
      mkdir -p /home/soft/elasticsearch-6.2.2/data/data/
 
      mkdir -p /home/soft/elasticsearch-6.2.2/data/logs/
 
三、修改目录权限[三台机器都一样]
 
    chown -R es:es /home/soft/elasticsearch-6.2.2
 
四、修改配置信息
 
一.  192.168.33.10 配置信息:
                    cluster.name: my-application
                    node.name: node-192-168-33-10
                    path.data: /home/soft/elasticsearch-6.2.2/esData/data
                    path.logs: /home/soft/elasticsearch-6.2.2/esData/logs
                    bootstrap.memory_lock: false
                    bootstrap.system_call_filter: false
                    network.host: 192.168.33.10
                    http.port: 9200
                    discovery.zen.ping.unicast.hosts: ["192.168.33.10:9300","192.168.33.11:9300","192.168.33.12:9300"]
                    discovery.zen.minimum_master_nodes: 2
                    gateway.recover_after_nodes: 3
                    node.master: true
                    node.data: false
                    node.ingest: false
                    search.remote.connect: false
 
二、192.168.33.11 配置信息:
          cluster.name: my-application
          **node.name: node-192-168-33-11**
          path.data: /home/soft/elasticsearch-6.2.2/esData/data/
          path.logs: /home/soft/elasticsearch-6.2.2/esData/logs/
          bootstrap.memory_lock: false
          bootstrap.system_call_filter: false
          **network.host: 192.168.33.11**
          http.port: 9200
          discovery.zen.ping.unicast.hosts: ["192.168.33.10:9300","192.168.33.11:9300","192.168.33.12:9300"]
          discovery.zen.minimum_master_nodes: 2
          gateway.recover_after_nodes: 3
          node.master: true
        ** node.data: true**
          node.ingest: false
          search.remote.connect: false
 
三、192.168.33.12 配置信息
                    cluster.name: my-application                           
                      **node.name: node-12**
                      path.data: /home/soft/elasticsearch-6.2.2/esData/data/
                      path.logs: /home/soft/elasticsearch-6.2.2/esData/logs/
                      bootstrap.memory_lock: false
                      bootstrap.system_call_filter: false
                    ** network.host: 192.168.33.12**
                    http.port: 9200
                    discovery.zen.ping.unicast.hosts: ["192.168.33.10:9300","192.168.33.11:9300","192.168.33.12:9300"]
                    discovery.zen.minimum_master_nodes: 2
                    gateway.recover_after_nodes: 3
                    node.master: true
                    node.data: true
                    node.ingest: false
                    search.remote.connect: false
 
四，用es用户的身份启动elasticsearch-6.2.2 [三台机器]
      ./bin/elasticsearch
    启动成功之后，用CURL 请求测试集群是否搭建成功。
            curl http://192.168.33.11:9200/_cat/nodes?v
 
Elasticsearch集群的简单搭建
 
 
 
此时，一个简单的集群已经搭建成功，现在是node-12为master节点。
 
说明：
3台机器的cluster.name值必须一样，node.name值必须不一样。
 
在启动过程中遇到的问题列表：
 
1.Elasticsearch集群的简单搭建
 
 
 
解决办法：
vim /etc/security/limits.conf,新加两行：
es soft nofile 65536
es hard nofile 65536