elasticsearch:单个索引中的多个类型

Question

我正在尝试在单个索引中创建多个类型.例如,我试图在索引中创建两个类型(host,post)ytb,以便在它们之间创建父子关系.

PUT /ytb
{
  "mappings": {
      "post": {
          "_parent": {
              "type": "host" 
            },
          "properties":{
            "@timestamp": {
                  "type": "date"
              },
            "indexed": {
                  "type": "date"
              },
              "n_comments": {
                  "type": "long"
              }, 
              "n_harvested": {
                  "type": "long"
              }, 
              "n_likes": {
                  "type": "long"
              },
              "network": {
                  "fields": {
                      "keyword": {
                          "ignore_above": 256, 
                          "type": "keyword"
                      }
                  }, 
                  "type": "text"
              },
              "parent_id": {
                  "fields": {
                      "keyword": {
                          "ignore_above": 256, 
                          "type": "keyword"
                      }
                  }, 
                  "type": "text"
              }, 
              "post_dbid": {
                  "type": "long"
              }, 
              "post_id": {
                  "fields": {
                      "keyword": {
                          "ignore_above": 256, 
                          "type": "keyword"
                      }
                  }, 
                  "type": "text"
              }, 
              "post_netid": {
                  "fields": {
                      "keyword": {
                          "ignore_above": 256, 
                          "type": "keyword"
                      }
                  }, 
                  "type": "text"
              }, 
              "published": {
                  "type": "date"
              }
          }
      },
      "host": {
          "properties": {
              "@timestamp": {
                  "type": "date"
              }, 
              "@version": {
                  "fields": {
                      "keyword": {
                          "ignore_above": 256, 
                          "type": "keyword"
                      }
                  }, 
                  "type": "text"
              }, 
              "country": {
                  "fields": {
                      "keyword": {
                          "ignore_above": 256, 
                          "type": "keyword"
                      }
                  }, 
                  "type": "text"
              }, 
              "host_dbid": {
                  "type": "long"
              }, 
              "host_id": {
                  "fields": {
                      "keyword": {
                          "ignore_above": 256, 
                          "type": "keyword"
                      }
                  }, 
                  "type": "text"
              }, 
              "host_netid": {
                  "fields": {
                      "keyword": {
                          "ignore_above": 256, 
                          "type": "keyword"
                      }
                  }, 
                  "type": "text"
              }, 
              "id": {
                  "fields": {
                      "keyword": {
                          "ignore_above": 256, 
                          "type": "keyword"
                      }
                  }, 
                  "type": "text"
              }, 
              "indexed": {
                  "type": "date"
              }, 
              "language": {
                  "fields": {
                      "keyword": {
                          "ignore_above": 256, 
                          "type": "keyword"
                      }
                  }, 
                  "type": "text"
              },
              "name": {
                  "fields": {
                      "keyword": {
                          "ignore_above": 256, 
                          "type": "keyword"
                      }
                  }, 
                  "type": "text"
              }, 
              "vertical": {
                  "fields": {
                      "keyword": {
                          "ignore_above": 256, 
                          "type": "keyword"
                      }
                  }, 
                  "type": "text"
              }
          }
      }
  }
}

但我收到这个错误:

{
  "error": {
    "root_cause": [
      {
        "type": "illegal_argument_exception",
        "reason": "Rejecting mapping update to [ytb] as the final mapping would have more than 1 type: [post, host]"
      }
    ],
    "type": "illegal_argument_exception",
    "reason": "Rejecting mapping update to [ytb] as the final mapping would have more than 1 type: [post, host]"
  },
  "status": 400
}

更新: Elasticsearch版本:6.3.0

Answer 1

如果您最近有ES 5.6或更高版本,则需要阅读此内容.总而言之,映射类型将被删除,并且从ES 6开始,每个索引只有一种类型将成为常态.

为了在评论中回答你的问题,我知道另一个类似Kibana的工具(实际上是Kibana fork)知道如何处理JOIN和关系数据.它被Siren Solutions 称为Kibi.另请阅读博客公告.