Elasticsearch 总是返回“缺少映射类型"； [英] Elasticsearch always returning "mapping type is missing"

问题描述

我正在按照此处给出的建议使用 elasticsearch 查找部分单词:

I'm following the advice given here in order to find partial words with elasticsearch:

ElasticSearch n-gram tokenfilter 找不到部分单词

我创建了一个简单的 bash 脚本来尝试运行它的一个版本:

I've created a simple bash script that attempts to run a version of this:

curl -XDELETE 10.160.86.134:9200/products
curl -XPOST 10.160.86.134:9200/products -d '{
  "index": {
    "number_of_shards": 1,
    "analysis": {
       "filter": {
         "mynGram" : {"type": "nGram", "min_gram": 2, "max_gram": 10}
       },
       "analyzer": {
         "a1" : {
           "type":"custom",
           "tokenizer": "standard",
           "filter": ["lowercase", "mynGram"]
         }
       }
     }
    }
  }
}'

curl -XPUT 10.160.86.134:9200/products/_mapping -d '{
  "product" : {
    "index_analyzer" : "a1",
    "search_analyzer" : "standard",
    "properties" : {
      "product_description": {"type":"string"},
      "product_name": {"type":"string"}
    }
  }
}'

运行此脚本后，前两个命令(转储产品，然后设置索引)似乎可以给我这个:

Following running this script the first two commands (dumping products, then setting the index) seem to work giving me this:

{"ok":true,"acknowledged":true}
{"ok":true,"acknowledged":true}

然后它在映射调用给我这个后出错:

Then it errors out following the mapping call giving me this:

{"error":"ActionRequestValidationException[Validation Failed: 1: mapping type is missing;]","status":500}

谁能看到我做错了什么?搜索 google 开始自动完成映射未找到 elasticsearch"，所以这似乎是一个非常常见的错误.

Can anyone see what I'm doing wrong? Searching google starts autocompleting "mapping not found elasticsearch" so it seems to be a very common error.

推荐答案

原来这是因为映射需要应用于类型:

Turns out this is happening because the mapping needs to be applied to the type:

我试着把它应用到错误的东西上:

I tried applying it to the wrong thing:

curl -XPUT 10.160.86.134:9200/products/_mapping -d '{

它需要像这样应用于类型:

It needs to be applied to the type like so:

curl -XPUT 10.160.86.134:9200/products/product/_mapping -d '{

很遗憾，一个简单的谷歌搜索无法回答这个问题.此外，我链接到的上一篇文章非常具有误导性，答案是错误的，我也会在那里指出.

It's sad that a simple google search couldn't answer this. Also the previous post I linked to is very misleading and the answer is wrong, which I'll point out there as well.

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