索引弹性搜索期间未显示结果

Question

我正在使用批量请求执行弹性搜索完整索引。我在索引过程中遇到问题，结果是空的。当我在完整索引期间删除索引时，我该如何处理这种情况。

我已经完成了这些步骤：

• 删除索引
• 创建索引
• 创建映射
• 批量请求

索引属性和映射：

{
"products": {
    "aliases": {},
    "mappings": {
        "properties": {
            "assemblyrequired": {
                "type": "boolean"
            },
            "australianmade": {
                "type": "boolean"
            },
            "australiasellable": {
                "type": "boolean"
            },
            "avgRating": {
                "type": "float"
            },
            "category": {
                "type": "text",
                "fields": {
                    "keyword": {
                        "type": "keyword",
                        "ignore_above": 256
                    }
                }
            },
            "categorylevel1": {
                "type": "text",
                "fields": {
                    "keyword": {
                        "type": "keyword",
                        "ignore_above": 256
                    }
                }
            },
            "categorylevel2": {
                "type": "text",
                "fields": {
                    "keyword": {
                        "type": "keyword",
                        "ignore_above": 256
                    }
                }
            },
            "categorylevel3": {
                "type": "text",
                "fields": {
                    "keyword": {
                        "type": "keyword",
                        "ignore_above": 256
                    }
                }
            },
            "categoryname": {
                "type": "text",
                "fields": {
                    "keyword": {
                        "type": "keyword",
                        "ignore_above": 256
                    }
                }
            },
            "categoryname_old": {
                "type": "text",
                "fields": {
                    "keyword": {
                        "type": "keyword",
                        "ignore_above": 256
                    }
                }
            },
            "clearance": {
                "type": "boolean"
            },
            "commercialuse": {
                "type": "boolean"
            },
            "customisable": {
                "type": "boolean"
            },
            "depth": {
                "type": "float"
            },
            "freedelivery": {
                "type": "boolean"
            },
            "genericcolourcode": {
                "type": "text",
                "fields": {
                    "keyword": {
                        "type": "keyword",
                        "ignore_above": 256
                    }
                }
            },
            "height": {
                "type": "float"
            },
            "hideprice": {
                "type": "boolean"
            },
            "listprice": {
                "type": "float"
            },
            "materialcode": {
                "type": "text",
                "fields": {
                    "keyword": {
                        "type": "keyword",
                        "ignore_above": 256
                    }
                }
            },
            "moneybackguarantee": {
                "type": "boolean"
            },
            "newrelease": {
                "type": "boolean"
            },
            "numberOfRating": {
                "type": "long"
            },
            "online": {
                "type": "boolean"
            },
            "outdooruse": {
                "type": "boolean"
            },
            "predictivecategorydata": {
                "type": "text",
                "fields": {
                    "keyword": {
                        "type": "keyword",
                        "ignore_above": 256
                    }
                }
            },
            "pricematchguarantee": {
                "type": "boolean"
            },
            "productcode": {
                "type": "text",
                "fields": {
                    "keyword": {
                        "type": "keyword",
                        "ignore_above": 256
                    }
                }
            },
            "productid": {
                "type": "text",
                "fields": {
                    "keyword": {
                        "type": "keyword",
                        "ignore_above": 256
                    }
                }
            },
            "productimageurl": {
                "type": "text",
                "fields": {
                    "keyword": {
                        "type": "keyword",
                        "ignore_above": 256
                    }
                }
            },
            "productname": {
                "type": "text",
                "fields": {
                    "keyword": {
                        "type": "keyword",
                        "ignore_above": 256
                    }
                }
            },
            "producttypecode": {
                "type": "text",
                "fields": {
                    "keyword": {
                        "type": "keyword",
                        "ignore_above": 256
                    }
                }
            },
            "promotedprice": {
                "type": "float"
            },
            "sale": {
                "type": "integer"
            },
            "saleprice": {
                "type": "float"
            },
            "sellable": {
                "type": "boolean"
            },
            "sellercode": {
                "type": "text",
                "fields": {
                    "keyword": {
                        "type": "keyword",
                        "ignore_above": 256
                    }
                }
            },
            "shortdescription": {
                "type": "text",
                "fields": {
                    "keyword": {
                        "type": "keyword",
                        "ignore_above": 256
                    }
                }
            },
            "sku": {
                "type": "text",
                "fields": {
                    "keyword": {
                        "type": "keyword",
                        "ignore_above": 256
                    }
                }
            },
            "sortweight": {
                "type": "long"
            },
            "state": {
                "type": "text",
                "fields": {
                    "keyword": {
                        "type": "keyword",
                        "ignore_above": 256
                    }
                }
            },
            "stylecode": {
                "type": "text",
                "fields": {
                    "keyword": {
                        "type": "keyword",
                        "ignore_above": 256
                    }
                }
            },
            "warrantycode": {
                "type": "text",
                "fields": {
                    "keyword": {
                        "type": "keyword",
                        "ignore_above": 256
                    }
                }
            },
            "weight": {
                "type": "float"
            },
            "width": {
                "type": "float"
            }
        }
    },
    "settings": {
        "index": {
            "number_of_shards": "1",
            "provided_name": "products",
            "max_result_window": "500000",
            "creation_date": "1595814303422",
            "number_of_replicas": "1",
            "uuid": "sGJxwr73Rkyu7-JekWFYsw",
            "version": {
                "created": "7060199"
            }
        }
    }
}

}

我有大约 75,000 个文档。

谢谢， 斯里。

Answer 1

如果您希望在重新索引期间完整索引可用，您唯一的选择是在索引完成之前不删除原始索引。在这种情况下，我可能会使用aliases。例如，假设products-2020.07.28 是您当前的索引，那么您将为今天创建一个新索引，并在索引完成后立即更改别名。

• 创建索引

  PUT /products-2020.07.28
  {
    "settings": {
      ... your settings ...
    },
    "mappings": {
      ... your mappings ...
    }
  }
  

• 批量索引请求

• 将别名更改为新索引

  POST /_aliases
  {
    "actions" : [
      { "remove" : { "index" : "products-2020.07.27", "alias" : "products" } },
      { "add" : { "index" : "products-2020.07.28", "alias" : "products" } }
    ]
  }
  

• 删除旧索引

  DELETE /products-2020.07.27
  

然后任何请求都可以直接转到别名，而不是索引。

GET /products/_search

这样您就可以在用户没有注意到任何事情的情况下重新编制索引。