可以使用以下API获取所有节点版本

GET _cat/nodes?v&h=ip,name,version,name,jdk

输出将类似于下面的图片

有关更多信息和更多选项，请参阅以下页面：https://www.elastic.co/guide/en/elasticsearch/reference/current/cat-nodes.html#cat-nodes-api-ex-headings

你可以简单地从kibana的dev-tools运行GET /，它将显示Elasticsearch集群的详细信息。这与从浏览器点击Elasticsearch相同。当你知道Elasticsearch主机和端口号时，响应将如下所示

{
"name": "Elasticsearch-cluster",
"cluster_name": "es_8.1.3",
"cluster_uuid": "-Z7M-1jiRqiRcy_0HnlBUA",
"version": {
"number": "8.1.3",
"build_flavor": "default",
"build_type": "tar",
"build_hash": "39afaa3c0fe7db4869a161985e240bd7182d7a07",
"build_date": "2022-04-19T08:13:25.444693396Z",
"build_snapshot": false,
"lucene_version": "9.0.0",
"minimum_wire_compatibility_version": "7.17.0",
"minimum_index_compatibility_version": "7.0.0"
},
"tagline": "You Know, for Search"
}