ruby-on-rails - 在Elasticsearch中处理大量碎片

Question

每个商店都有自己的一组库存，这些库存作为一个索引存储在elasticsearch中。目前，我有11000家商店，这意味着它有11000个分片，这些分片的索引很难在32 GB的ram服务器中获取数据。

有人可以指导如何在Elasticsearch中存储每个商店的库存，因为为每个商店库存创建单独的索引对我没有帮助吗？

以下是索引的映射。 Elasticsearch使用的版本是6.0.1

{
  "staging_shop_inventory_558" : {
    "mappings" : {
      "shop_inventory" : {
        "properties" : {
          "alternate_name" : {
            "type" : "text",
            "analyzer" : "standard"
          },
          "brand" : {
            "properties" : {
              "created_at" : {
                "type" : "date"
              },
              "id" : {
                "type" : "integer"
              },
              "image" : {
                "type" : "text",
                "index" : false
              },
              "is_selected" : {
                "type" : "boolean"
              },
              "name" : {
                "type" : "text",
                "analyzer" : "standard"
              },
              "updated_at" : {
                "type" : "date"
              }
            }
          },
          "brand_autocomplete" : {
            "type" : "text",
            "analyzer" : "autocomplete",
            "search_analyzer" : "autocomplete_search"
          },
          "brand_suggest" : {
            "type" : "text",
            "analyzer" : "ngram_analyzer"
          },
          "category" : {
            "properties" : {
              "id" : {
                "type" : "integer"
              },
              "image" : {
                "type" : "text",
                "index" : false
              },
              "name" : {
                "type" : "text",
                "analyzer" : "standard"
              }
            }
          },
          "created_at" : {
            "type" : "date"
          },
          "deleted_at" : {
            "type" : "date"
          },
          "id" : {
            "type" : "integer"
          },
          "image" : {
            "type" : "text",
            "index" : false
          },
          "is_deleted" : {
            "type" : "boolean"
          },
          "name" : {
            "type" : "text",
            "fields" : {
              "raw" : {
                "type" : "keyword"
              }
            },
            "analyzer" : "gramAnalyzer",
            "search_analyzer" : "whitespace_analyzer"
          },
          "name_autocomplete" : {
            "type" : "text",
            "analyzer" : "autocomplete",
            "search_analyzer" : "autocomplete_search"
          },
          "name_suggest" : {
            "type" : "text",
            "analyzer" : "ngram_analyzer"
          },
          "product_id" : {
            "type" : "integer"
          },
          "product_sizes" : {
            "type" : "nested",
            "properties" : {
              "deleted_at" : {
                "type" : "date"
              },
              "description" : {
                "type" : "text",
                "fields" : {
                  "keyword" : {
                    "type" : "keyword",
                    "ignore_above" : 256
                  }
                }
              },
              "ean_code" : {
                "type" : "keyword"
              },
              "id" : {
                "type" : "integer"
              },
              "in_stock" : {
                "type" : "boolean"
              },
              "is_deleted" : {
                "type" : "boolean"
              },
              "price" : {
                "type" : "float"
              },
              "product_id" : {
                "type" : "long"
              },
              "product_update_on" : {
                "type" : "date"
              },
              "product_update_status" : {
                "type" : "integer"
              },
              "uom" : {
                "type" : "keyword"
              },
              "weight" : {
                "type" : "float"
              }
            }
          },
          "sub_category" : {
            "properties" : {
              "created_at" : {
                "type" : "date"
              },
              "id" : {
                "type" : "integer"
              },
              "image" : {
                "type" : "text",
                "index" : false
              },
              "is_selected" : {
                "type" : "boolean"
              },
              "name" : {
                "type" : "text",
                "analyzer" : "standard"
              },
              "updated_at" : {
                "type" : "date"
              }
            }
          },
          "sub_category_suggest" : {
            "type" : "text",
            "analyzer" : "gramAnalyzer",
            "search_analyzer" : "whitespace_analyzer"
          }
        }
      }
    }
  }
}

Answer 1

哇，您的节点中只有11 GB碎片(可能更多取决于复制因子)，而该碎片只有32 GB RAM(再次注意，这不是分配给Elasticsearch进程的JVM)，其性能很大程度上取决于JVM的大小和beyond 32GB deteriorates。

Elasticsearch是一个分布式系统，可以轻松扩展到数千个节点，您应该在集群中添加更多节点，并将Elasticsearch索引分发到集群中的所有节点。

另外，请遵循opster's article on shards and replicas，它将提供各种详细信息，例如

分片和副本的内部结构

实现更好性能的重要性

进行配置的提示。