如何細分用戶

Question

如果我有彈性的搜索索引的用戶的屬性，我想以某種方式角色添加到用戶，如：

roles: employee, manager, surpervisor 

用戶可以屬於1個或多個角色。

然後我可以搜索屬於角色「僱員」或「經理，主管」的用戶嗎？

如果有50萬或100萬的用戶，這會是一個糟糕的設計嗎？

Answer 1

是的，你可以添加多個值到同一個字段。 Elasticsearch中的每個字段默認爲「多值」。這意味着你可以索引文件，這樣

文件1

curl -XPUT 'http://localhost:9200/twitter/tweet/1' -d '{ 
"user" : "kimchy", 
"post_date" : "2009-11-15T14:12:12", 
"message" : "trying out Elasticsearch", 
"roles": ["manager", "employee", "supervisor"] }' 

文獻2

curl -XPUT 'http://localhost:9200/twitter/tweet/2' -d '{ 
"user" : "cool breeze", 
"post_date" : "2009-11-15T14:12:12", 
"message" : "trying out Elasticsearch", 
"roles": ["manager", "supervisor"]}' 

文獻3

curl -XPUT 'http://localhost:9200/twitter/tweet/3' -d '{ 
"user" : "jay", 
"post_date" : "2009-11-15T14:12:12", 
"message" : "trying out Elasticsearch", 
"roles": ["employee"] }' 

現在讓我們說你要搜索誰是主管用戶AND經理：

curl -XGET 'http://localhost:9200/twitter/tweet/_search' -d '{ 
    "query": { 
     "bool": { 
      "should": [{ 
       "match": { 
        "roles": { 
         "query": "supervisor manager", 
         "operator" : "and" 
        } 
       } 
      }] 
     } 
    }}' 

響應：

{ 
    "took": 11, 
    "timed_out": false, 
    "_shards": { 
    "total": 5, 
    "successful": 5, 
    "failed": 0 
    }, 
    "hits": { 
    "total": 2, 
    "max_score": 0.2712221, 
    "hits": [ 
     { 
     "_index": "twitter", 
     "_type": "tweet", 
     "_id": "2", 
     "_score": 0.2712221, 
     "_source": { 
      "user": "cool breeze", 
      "post_date": "2009-11-15T14:12:12", 
      "message": "trying out Elasticsearch", 
      "roles": [ 
      "manager", 
      "supervisor" 
      ] 
     } 
     }, 
     { 
     "_index": "twitter", 
     "_type": "tweet", 
     "_id": "1", 
     "_score": 0.2169777, 
     "_source": { 
      "user": "kimchy", 
      "post_date": "2009-11-15T14:12:12", 
      "message": "trying out Elasticsearch", 
      "roles": [ 
      "manager", 
      "employee", 
      "supervisor" 
      ] 
     } 
     } 
    ] 
    }} 

或者，如果你希望員工誰是主管，經理或員工：

curl -XGET 'http://localhost:9200/twitter/tweet/_search' -d '{ 
    "query": { 
     "bool": { 
      "should": [{ 
       "match": { 
        "roles": { 
         "query": "supervisor manager", 
         "operator" : "and" 
        } 
       } 
      }, 
      { 
       "match": { 
        "roles": { 
        "query" : "employee" 
        } 
       } 
      }] 
     } 
    } }'