Elasticsearch索引模板和别名

创建模板(模板名和索引名一样都不能有大写)

PUT http://222.108.x.x:9200/_template/templateds

{
    "template": "dsideal*",
    "order": 0,
    "settings": {
        "number_of_shards": 5
    },
    "aliases": {
        "dsideal-query": {}　　　　　　#起个别名
    },
    "mappings": {
        "doc": {
            "properties": {
                "person_name": {
                    "type": "keyword"
                },
                "gender_id": {
                    "type": "long"
                },
                "bureau_id": {
                    "type": "long"
                }
            }
        }
    }
}

写一些数据

POST http://222.108.x.x:9200/dsideal10/doc/1

{
    "person_name": "张三",
    "gender_id": 1,
    "bureau_id": 2
}

POST http://222.108.x.x:9200/dsideal11/doc/2

{
    "person_name": "李四",
    "gender_id": 2,
    "bureau_id": 2
}

会按照模板自动生成两个索引“dsideal10”和“dsideal11”

可以利用在创建模板时起的别名进行查询

POST http://222.108.x.x:9200/dsideal-query/_search

{
    "size": 10,
    "query": {
        "bool": {
            "must": [
                {
                    "term": {
                        "bureau_id": "2"
                    }
                }
            ]
        }
    }
}

创建多个索引别名【备忘】

POST http://222.108.x.x:9200/_aliases

{
    "actions" : [
        { "add" : { "index" : "dsideal1","alias" : "alias1" } },
        { "add" : { "index" : "dsideal2","alias" : "alias1" } }
    ]
}

在创建一个索引时可为这个索引根据条件创建多个别名

POST http://222.108.x.x:9200/test100

{
    "aliases" : {
        "2014" : {
            "filter" : {
                "term" : {"year": 2014 }
            }
        },
        "2015" : {
            "filter" : {
                "term" : {"year": 2015 }
            }
        },
        "2016" : {
            "filter" : {
                "term" : {"year": 2016 }
            }
        }
    },
    "mappings": {
        "doc": {
            "properties": {
                "person_name": {
                    "type": "keyword"
                },
                "year": {
                    "type": "long"
                },
                "bureau_id": {
                    "type": "long"
                }
            }
        }
    }
}

说明：当插入year=2015的数据时可用2015这个别名去查询

测试插入一些数据

{"person_name":"张三","year":2014,"bureau_id":2},
{"person_name":"李四","year":2015,"bureau_id":3},
{"person_name":"王五","year":2015,"bureau_id":3},
{"person_name":"赵六","year":2016,"bureau_id":4}

post http://222.108.x.x:9200/2015/_search

{
    "size": 10,
    "query": {
        "bool": {
            "must": [
                {
                    "match_all": {

                    }
                }
            ]
        }
    }
}

就只返回year=2015的数据