查看Elasticsearch版本

Elasticsearch查看版本：

[root@ycyzharry ~]# curl http://127.0.0.1:9200
{
  "name" : "ycyzharry",
  "cluster_name" : "my-cluster",
  "cluster_uuid" : "_Gu9lSBcSgKxf1w0eppNGA",
  "version" : {
    "number" : "7.6.2",
    "build_flavor" : "default",
    "build_type" : "tar",
    "build_hash" : "ef48eb35cf30adf4db14086e8aabd07ef6fb113f",
    "build_date" : "2020-03-26T06:34:37.794943Z",
    "build_snapshot" : false,
    "lucene_version" : "8.4.0",
    "minimum_wire_compatibility_version" : "6.8.0",
    "minimum_index_compatibility_version" : "6.0.0-beta1"
  },
  "tagline" : "You Know, for Search"
}

number对应的7.6.2即是es的版本号