Elasticsearch实战教程： 如何在海量级数据中进行快速搜索

yum -y install java-1.8.0-openjdk

java -version

rpm -ivh elasticsearch-6.1.0.rpm

rpm -ql elasticsearch

mkdir -p /data/es-data

chown -R elasticsearch:elasticsearch /data/es-data

mkdir -p /log/es-log

chown -R elasticsearch:elasticsearch /log/es-log

vim /etc/elasticsearch/elasticsearch.yml

#设置节点名称
cluster.name: my-es

#设置data存放的路径为/data/es-data
path.data: /data/es-data

#设置logs日志的路径为/log/es-log
path.logs: /log/es-log

#设置内存不使用交换分区，配置了bootstrap.memory_lock为true时反而会引发9200不会被监听，原因不明
bootstrap.memory_lock: false

#设置允许所有ip可以连接该elasticsearch
network.host: 0.0.0.0

#开启监听的端口为9200
http.port: 9200

#增加新的参数，为了让elasticsearch-head插件可以访问es (5.x版本，如果没有可以自己手动加)
http.cors.enabled: true
http.cors.allow-origin: "*"

systemctl start elasticsearch

systemctl status elasticsearch

systemctl enable elasticsearch

curl -X GET http://localhost:9200

#查询防火墙状态
firewall-cmd --state

#关闭防火墙
systemctl stop firewalld.service

#禁止firewall开机启动
systemctl disable firewalld.service

PUT /my_index
{
  "settings": {
    "number_of_shards": 1,
    "number_of_replicas": 0
  },
  "mappings": {
    "properties": {
      "title": { "type": "text" },
      "content": { "type": "text" }
    }
  }
}

POST /my_index/_bulk
{ "index": { "_id": 1 } }
{ "title": "Elasticsearch教程", "content": "这是一篇关于Elasticsearch的教程。" }
{ "index": { "_id": 2 } }
{ "title": "Elasticsearch实战", "content": "这是一篇关于Elasticsearch实战的教程。" }

GET /my_index/_search
{
  "query": {
    "match": {
      "title": "Elasticsearch"
    }
  }
}