ES 索引设置别名

POST /_aliases

{

  "actions": [

    {

      "add": {

        "index": "my_index",

        "alias": "my_index_alias"

      }

    }

  ]

}

POST /_aliases

{

  "actions": [

    {

      "remove": {

        "index": "my_index_v1",

        "alias": "my_index"

      }

    },

    {

      "add": {

        "index": "my_index_v2",

        "alias": "my_index"

      }

    }

  ]

}

GET/*/_alias/my_index     //查某个别名映射的所有index

GET /my_index_v1/_alias/*//查询某个index拥有的别名

solution：

重建索引，在建新索引时候做字段的迁移，达到修改index/mapping目的

字段迁移

ref: https://www.cnblogs.com/bigbigtree/p/6829625.html

（仅参考）

ref: https://www.jianshu.com/p/a46fc9fce199

index别名 ref: https://www.cnblogs.com/bigbigtree/p/6829625.html

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