1、安装JDK,至少1.8.0_73以上版本,java -version
    2、下载和解压缩Elasticsearch安装包,目录结构
    3、启动Elasticsearch:bin\elasticsearch.bat,es本身特点之一就是开箱即用,如果是中小型应用,数据量少,操作不是很复杂,直接启动就可以用了
    4、检查ES是否启动成功:http://localhost:9200/?pretty
    image
    name: node名称
    cluster_name: 集群名称(默认的集群名称就是elasticsearch)
    version.number: es版本号

    1. {
    2. "name" : "WINDOWS-7EM0MJ0",
    3. "cluster_name" : "elasticsearch",
    4. "cluster_uuid" : "eyWakQ8rTtOSrhC2S1dM1g",
    5. "version" : {
    6. "number" : "7.8.0",
    7. "build_flavor" : "default",
    8. "build_type" : "zip",
    9. "build_hash" : "757314695644ea9a1dc2fecd26d1a43856725e65",
    10. "build_date" : "2020-06-14T19:35:50.234439Z",
    11. "build_snapshot" : false,
    12. "lucene_version" : "8.5.1",
    13. "minimum_wire_compatibility_version" : "6.8.0",
    14. "minimum_index_compatibility_version" : "6.0.0-beta1"
    15. },
    16. "tagline" : "You Know, for Search"
    17. }

    5、修改集群名称:elasticsearch.yml
    6、下载和解压缩Kibana安装包,使用里面的开发界面,去操作elasticsearch,作为我们学习es知识点的一个主要的界面入口
    7、启动Kibana:bin\kibana.bat, http://localhost:5601
    image
    8、进入Dev Tools界面
    image
    9、GET _cluster/health
    image
    没有 replica shard 分片,es 的状态为 green, es 5.X 版本则会显示 yellow
    ES7.8 的 健康检查:

    {
      "cluster_name" : "elasticsearch",
      "status" : "green",
      "timed_out" : false,
      "number_of_nodes" : 1,
      "number_of_data_nodes" : 1,
      "active_primary_shards" : 7,
      "active_shards" : 7,
      "relocating_shards" : 0,
      "initializing_shards" : 0,
      "unassigned_shards" : 0,
      "delayed_unassigned_shards" : 0,
      "number_of_pending_tasks" : 0,
      "number_of_in_flight_fetch" : 0,
      "task_max_waiting_in_queue_millis" : 0,
      "active_shards_percent_as_number" : 100.0
    }