仅对 elasticsearch 上的特定索引禁用动态映射创建? [英] Disable dynamic mapping creation for only specific indexes on elasticsearch?

问题描述

我正在尝试仅针对特定索引(而非所有索引)禁用动态映射创建.出于某种原因，我不能将 default 映射与动态":假".所以，我可以看到这里有两个选项:

I'm trying to disable dynamic mapping creation for only specific indexes, not for all. For some reason I can't put default mapping with 'dynamic' : 'false'. So, here left two options as I can see:

1. 在文件 elasticsearch.yml 中指定属性 'index.mapper.dynamic'.
2. 将 'index.mapper.dynamic' 放在索引创建时，如下所述 https://www.elastic.co/guide/en/kibana/current/setup.html#kibana-dynamic-mapping

1. specify property 'index.mapper.dynamic' in file elasticsearch.yml.
2. put 'index.mapper.dynamic' at index creation time, as described here https://www.elastic.co/guide/en/kibana/current/setup.html#kibana-dynamic-mapping

第一个选项可能只接受值:true、false 和strict.所以没有办法指定特定索引的子集(就像我们通过具有属性 'action.auto_create_index' https://www.elastic.co/guide/en/elasticsearch/reference/current/docs-index_.html#index-creation).

First option may only accept values: true, false and strict. So there is no way to specify subset of specific indexes (like we do by pattern with property 'action.auto_create_index' https://www.elastic.co/guide/en/elasticsearch/reference/current/docs-index_.html#index-creation).

第二个选项不起作用.我已经创建了索引

Second option just not works. I've created index

POST http://localhost:9200/test_idx/
{
    "settings" : {
        "mapper" : {
            "dynamic" : false
        }
    },
    "mappings" : {
        "test_type" : {
            "properties" : {
                "field1" : {
                    "type" : "string"
                }
            }
        }
    }
}

然后检查索引设置:

GET http://localhost:9200/test_idx/_settings    
{
    "test_idx" : {
        "settings" : {
            "index" : {
                "mapper" : {
                    "dynamic" : "false"
                },
                "creation_date" : "1445440252221",
                "number_of_shards" : "1",
                "number_of_replicas" : "0",
                "version" : {
                    "created" : "1050299"
                },
                "uuid" : "5QSYSYoORNqCXtdYn51XfA"
            }
        }
    }
}

和映射:

GET http://localhost:9200/test_idx/_mapping
{
    "test_idx" : {
        "mappings" : {
            "test_type" : {
                "properties" : {
                    "field1" : {
                        "type" : "string"
                    }
                }
            }
        }
    }
}

到目前为止一切顺利，让我们用未声明的字段索引文档:

so far so good, let's index document with undeclared field:

POST http://localhost:9200/test_idx/test_type/1
{
    "field1" : "it's ok, field must be in mapping and in source",
    "somefield" : "but this field must be in source only, not in mapping"
}

然后我再次检查了映射:

Then I've checked mapping again:

GET http://localhost:9200/test_idx/_mapping
{
    "test_idx" : {
        "mappings" : {
            "test_type" : {
                "properties" : {
                    "field1" : {
                        "type" : "string"
                    },
                    "somefield" : {
                        "type" : "string"
                    }
                }
            }
        }
    }
}

如您所见，无论索引设置dynamic"如何，映射都会扩展:false.我还尝试完全按照 doc

As you can see, mapping is extended regardless of index setting "dynamic" : false. I've also tried to create index exactly as described in doc

PUT http://localhost:9200/test_idx
{
    "index.mapper.dynamic": false
}

但得到了相同的行为.

也许我错过了什么?

非常感谢！

推荐答案

大功告成:需要将该值设置为 strict.正确的用法如下:

You're almost there: the value needs to be set to strict. And the correct usage is the following:

PUT /test_idx
{
  "mappings": {
    "test_type": {
      "dynamic":"strict",
      "properties": {
        "field1": {
          "type": "string"
        }
      }
    }
  }
}

进一步推动这一点，如果您想禁止创建新类型，而不仅仅是该索引中的字段，请使用:

And pushing this a bit further, if you want to forbid the creation even of new types, not only fields in that index, use this:

PUT /test_idx
{
  "mappings": {
    "_default_": {
      "dynamic": "strict"
    },
    "test_type": {
      "properties": {
        "field1": {
          "type": "string"
        }
      }
    }
  }
}

没有 _default_ 模板:

PUT /test_idx
{
  "settings": {
    "index.mapper.dynamic": false
  },
  "mappings": {
    "test_type": {
      "dynamic": "strict",
      "properties": {
        "field1": {
          "type": "string"
        }
      }
    }
  }
}

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