非用户属性短文本业务数据index mapping分析

以网上商城的商品信息为例，商品信息包括名称、概述、类别、价格、是否热卖等

setting参数refresh_interval：为-1时，代表不刷新索引。为正数时，需等待相应时间后，才可以在es索引中搜索到。商品的搜索期望新上架的商品可以尽快被搜索到，设置为1s

通过sotre.preload，为商品索引数据预热

mapping参数：

• 商品名称store_name、商品简介store_info、产品描述description、关键字keyword，通过analyzer进行分词，不需要存储原始信息，设置为source.excludes
• id、分类cate_id，设置为keyword，精确匹配，不需要排序聚合，设置doc_values为false
• 需要在store_info、description、keyword字段中搜索同一个“关键字”，将这三个字段copy到desc

PUT shop-product
{
  "settings": {
    "refresh_interval": "1s",
    "number_of_shards": 15,
    "number_of_replicas": 1,
    "index": {
      "store.preload": [
        "nvd",
        "dvd"
      ],
      "sort.field": [
        "price",
        "sales",
        "ficti"
      ],
      "sort.order": [
        "asc",
        "desc",
        "desc"
      ],
      "search.slowlog.threshold.query.warn": "500ms",
      "search.slowlog.threshold.fetch.warn": "1s",
      "indexing.slowlog.threshold.index.warn": "1s"
    },
    "analysis": {
      "analyzer": {
        "ik_index_analyzer": {
          "type": "custom",
          "tokenizer": "ik_max_word",
          "filter": [
            "lowercase"
          ]
        },
        "ik_index_html_strip_analyzer": {
          "type": "custom",
          "tokenizer": "ik_max_word",
          "filter": [
            "lowercase"
          ]
        },
        "ik_search_analyzer": {
          "type": "custom",
          "tokenizer": "ik_smart",
          "char_filter": [
            "html_strip"
          ],
          "filter": [
            "lowercase"
          ]
        },
        "pinyin_analyzer": {
          "tokenizer": "pinyin_tokenizer"
        },
        "ngram_analyzer": {
          "tokenizer": "ngram_tokenizer"
        }
      },
      "tokenizer": {
        "pinyin_tokenizer": {
          "type": "pinyin",
          "keep_separate_first_letter": true,
          "keep_full_pinyin": true,
          "keep_original": true,
          "limit_first_letter_length": 16,
          "lowercase": true,
          "remove_duplicated_term": true
        },
        "ngram_tokenizer": {
          "type": "ngram",
          "min_gram": 1,
          "max_gram": 1
        }
      }
    }
  },
  "mappings": {
    "dynamic": "strict",
    "_source": {
      "excludes": [
        "store_name",
        "store_info",
        "description",
        "keyword"
      ]
    },
    "properties": {
      "id": {
        "type": "keyword",
        "doc_values": false
      },
      "store_name": {
        "type": "text",
        "index_options": "positions",
        "analyzer": "ik_index_analyzer",
        "search_analyzer": "ik_search_analyzer",
        "fields": {
          "pinyin": {
            "type": "text",
            "store": false,
            "analyzer": "pinyin_analyzer",
            "search_analyzer": "pinyin_analyzer"
          },
          "single": {
            "type": "text",
            "store": false,
            "index_options": "positions",
            "analyzer": "ngram_analyzer",
            "search_analyzer": "ngram_analyzer"
          }
        }
      },
      "desc": {
        "type": "text",
        "index_options": "positions",
        "analyzer": "ik_index_analyzer",
        "search_analyzer": "ik_search_analyzer"
      },
      "store_info": {
        "type": "text",
        "index_options": "positions",
        "copy_to": "desc",
        "analyzer": "ik_index_analyzer",
        "search_analyzer": "ik_search_analyzer"
      },
      "description": {
        "type": "text",
        "index_options": "positions",
        "copy_to": "desc",
        "analyzer": "ik_index_html_strip_analyzer",
        "search_analyzer": "ik_search_analyzer"
      },
      "keyword": {
        "type": "text",
        "copy_to": "desc",
        "index_options": "positions",
        "analyzer": "ik_index_analyzer",
        "search_analyzer": "ik_search_analyzer"
      },
      "cate_id": {
        "type": "keyword",
        "doc_values": false
      },
      "price": {
        "type": "double"
      },
      "sales": {
        "type": "long"
      },
      "ficti": {
        "type": "long"
      },
      "is_hot": {
        "type": "keyword"
      },
      "is_benefit": {
        "type": "keyword"
      },
      "is_best": {
        "type": "keyword"
      },
      "is_new": {
        "type": "keyword"
      },
      "is_postage": {
        "type": "keyword"
      },
      "is_good": {
        "type": "keyword"
      },
      "create_time":{
        "type": "date"
      }, "update_time":{
        "type": "date"
      }
    }
  }
}