如果文档具有字段的映射不匹配，则Elasticsearch会静默失败 [英] Elasticsearch fails silently if document has mapping mismatch for a field

问题描述

我正在面对Elasticsearch的一个奇怪的问题。我的映射指定某个字段的类型为 long 。现在我不小心尝试索引一些文档，其中 c> string 的类型为<＃c $ c> long 。我从Elasticsearch没有收到错误，但是这些文件从未被索引。当我修正这个问题时，文件索引很好。

示例：

我的映射：

  {
field1：{
type：long
} 
} 
  

当我发送此文档时，它会静默地失败：

  {
field1：这是一个字符串
} 
  

当我发送它的工作原理：

  {
field1：12345 
} 
  

有没有办法检测这种错误？

解决方案

如果您设置 ignore_malformed 字符串为false。如果文档格式不正确但不会引发异常，则不会对文档编制索引。至少在弹性搜索1.6.0中。

示例：

  put test 
 
 put test / test / _mapping 
 {
properties：{
title：{type：string}，
data：{type：long，ignore_malformed：false} 
 
} 
} 
 
 put test / test / 1 
 {
data：1，
title：有效的强制字符串到数字
} 
 
 put test / test / 2 
 {
data：hello，
title：invalid number
} 
 
 #Failed Response 
 {
error：MapperParsingException [无法解析[data]];嵌套：NumberFormatException [对于输入字符串：\hello\];，
status：400 
 } 
 
查询获取失败
 
获取测试/测试/ 2 
 
 
 {
_index：test ，
_type：test，
_id：2，
found：false 
} 
  

I am facing a weird issue with Elasticsearch. My mapping specifies that a certain field is of type long. Now accidentally I was trying to index some documents which had string type for that field instead of long. I was getting no errors from Elasticsearch but the documents were never indexed. When I fixed the issue the documents were indexed just fine.

Example:

My mapping:

{
    "field1": {
        "type": "long"
    }
}

When I send this document it fails silently:

 {
     "field1": "this is a string"
 }

When I send this it works as expected:

 {
     "field1": 12345
 }

Is there a way to detect this kind of errors?

解决方案

If you set ignore_malformed string to false. It would not index the document if it is malformed but throws an exception. At least in elasticsearch 1.6.0.

Example:

put test

put test/test/_mapping 
{
    "properties" : {
        "title" : {"type" : "string"},
        "data" : {"type": "long" ,"ignore_malformed":false}

    }
}

put test/test/1
{
    "data" : "1",
    "title" : "valid coerce string to number"
}

put test/test/2
{
    "data" : "hello",
    "title" : "invalid number"
}

#Failed Response
{
   "error": "MapperParsingException[failed to parse [data]]; nested: NumberFormatException[For input string: \"hello\"]; ",
   "status": 400
}

Query with Get fails

get test/test/2


{
   "_index": "test",
   "_type": "test",
   "_id": "2",
   "found": false
}

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