启用Elasticsearch _size字段 [英] Enabling Elasticsearch _size field

问题描述

我的索引中包含超过9,000,000个文档.

I have an index with over 9,000,000 docs.

我已经定义了自己的映射，一切正常.

I have defined my own mapping and everything went fine.

唯一的问题是我忘记启用_size字段，现在我需要它来本地化大尺寸的文档.

The only problem is that I forgot to enable the _size field and now I need it to localize document with a large size.

从文档中我发现，使用带有以下参数的PUT映射API很好:

From the documentation I found that it's just fine to use the PUT mapping API with these parameters:

{
    "my_index": {
        "_size": {
            "enabled": true
        }
    }
}

• 新映射是否将与已设置的映射合并?
• 是否为已存储的文档启用大小字段?

我有点担心更改映射，因为上次我使用新的分析仪更新设置时，由于分片重定位导致服务出现问题，并且一切卡住了.

I am a little worried making changes to mapping beacuse the last time that I have updated the settings with a new analyzer the service was having problem due to shard relocation and everything got stuck.

推荐答案

映射将被合并，并为 my_index _size 字段>.

The mappings will be merged OK and the _size field will be enabled for all your documents of type my_index.

请注意，如果要存储 _size (除了仅索引其值)，还需要在您的计算机中添加"store":"yes" _size 映射.

Note that if you want to store the _size (in addition to just index its value), you also need to add "store": "yes" in your _size mapping.

不幸的是，您需要重新索引数据才能正确索引 _size 字段.

Unfortunately, you'll need to re-index your data in order for the _size field to be properly indexed.

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