无法将非对象映射与机器学习（测试版）模块中的对象映射错误合并 [英] Can’t merge a non object mapping with an object mapping error in machine learning(beta) module

问题描述

我正在试用x pack中的新机器学习模块。我正在尝试及时识别HTTP Access日志中的罕见响应代码。我的日志存储在弹性搜索中，如下所示：

I'm trying out the new machine learning module in x pack. I'm trying to identify rare response codes in HTTP Access logs in time. My logs are being stored in elasticsearch as below:

{
  "_index": "logstash-2017.05.18",
  "_type": "Accesslog",
  "_id": "AVxvVfFGdMmRr-0X-J5P",
  "_version": 1,
  "_score": null,
  "_source": {
    "request": "/web/Q123/images/buttons/asdf.gif",
    "server": "91",
    "auth": "-",
    "ident": "-",
    "verb": "GET",
    "type": "Accesslog",
    "path": "/path/to/log",
    "@timestamp": "2017-05-18T10:20:00.000Z",
    "response": "304",
    "clientip": "1.1.1.1",
    "@version": "1",
    "host": "ip-10-10-10-10",
    "httpversion": "1.1",
    "timestamp": "18/May/2017:10:20:00 +0530"
  },
  "fields": {
    "@timestamp": [
      1495102800000
    ]
  }

我在选择位置添加了一个检测器功能为罕见，by_field_name为响应。但是当我保存作业时，出现以下错误：

I added a detector where I selected the function as 'rare' and the by_field_name' as 'response'. But when I save the job I get the following error:

Save failed: [illegal_argument_exception] Can't merge a non object mapping [response] with an object mapping [response]

请帮助。

推荐答案

该错误消息表示您正在尝试更改现有映射。但是，这在Elasticsearch中是不可能的。创建映射后，就无法更改。

The error message means that you are trying to change an existing mapping. However, that is not possible in Elasticsearch. Once a mapping has been created, it cannot be changed.

如Shay Banon自己所解释的那样：

您不能更改现有的映射类型，您需要创建一个具有正确映射的新索引
并再次为数据建立索引。

You can't change existing mapping type, you need to create a new index with the correct mapping and index the data again.

因此，您必须创建一个创建此映射的新索引。根据情况，您可以

So you must create a new index to create this mapping. Depending on the situation, you either

• 创建其他索引，或者


• 删除当前索引并从头开始重新创建它。

当然，在后一种情况下，您将丢失索引中的所有数据，因此请做好相应的准备。

Of course in the latter case you will lose all data in the index, so prepare accordingly.

这篇关于无法将非对象映射与机器学习（测试版）模块中的对象映射错误合并的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！