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08552f1c2e
* fix syntax and rendering errors * clean up * fix versions * more clean up * more fixes * more fixes * more fixes
34 lines
1.5 KiB
Markdown
34 lines
1.5 KiB
Markdown
---
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mapped_pages:
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- https://www.elastic.co/guide/en/elasticsearch/plugins/current/mapper-murmur3.html
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---
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# Mapper murmur3 plugin [mapper-murmur3]
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The mapper-murmur3 plugin provides the ability to compute hash of field values at index-time and store them in the index. This can sometimes be helpful when running cardinality aggregations on high-cardinality and large string fields.
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## Installation [mapper-murmur3-install]
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This plugin can be installed using the plugin manager:
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```sh
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sudo bin/elasticsearch-plugin install mapper-murmur3
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```
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The plugin must be installed on every node in the cluster, and each node must be restarted after installation.
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You can download this plugin for [offline install](/reference/elasticsearch-plugins/plugin-management-custom-url.md) from [https://artifacts.elastic.co/downloads/elasticsearch-plugins/mapper-murmur3/mapper-murmur3-{{version}}.zip](https://artifacts.elastic.co/downloads/elasticsearch-plugins/mapper-murmur3/mapper-murmur3-{{version}}.zip). To verify the `.zip` file, use the [SHA hash](https://artifacts.elastic.co/downloads/elasticsearch-plugins/mapper-murmur3/mapper-murmur3-{{version}}.zip.sha512) or [ASC key](https://artifacts.elastic.co/downloads/elasticsearch-plugins/mapper-murmur3/mapper-murmur3-{{version}}.zip.asc).
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## Removal [mapper-murmur3-remove]
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The plugin can be removed with the following command:
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```sh
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sudo bin/elasticsearch-plugin remove mapper-murmur3
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```
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The node must be stopped before removing the plugin.
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