# How to enable stemmer feature

**URL:** <https://discuss.elastic.co/t/how-to-enable-stemmer-feature/186358>\
**Category:** Elasticsearch\
**Created:** [June 19, 2019, 2:07am UTC](https://discuss.elastic.co/t/how-to-enable-stemmer-feature/186358 "2019-06-19T02:07:17Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![ieiayaobb](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/ieiayaobb/32/48339_2.png) [@ieiayaobb](https://discuss.elastic.co/u/ieiayaobb)\
**Post date:** [June 19, 2019, 2:07am UTC](https://discuss.elastic.co/t/how-to-enable-stemmer-feature/186358/1 "2019-06-19T02:07:17Z")

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Hi all, I'm new to Elastic Search.  
I'm working on applying stemmer feature on all my indexes, so I used the following code:

```
settingMap.put("index.analysis.filter.english_stemmer.type", "stemmer");
settingMap.put("index.analysis.filter.english_stemmer.name", "porter");

Node node = NodeBuilder.nodeBuilder()
				.settings(Settings.settingsBuilder().put(settingMap)).node();

```

Unfortunately, it doesn't make sense. I went through all the official documents, they all teach me how to define a customize stemmer. However, I only want to apply an embedded one.

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**Author:** ![dadoonet](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dadoonet/32/137187_2.png) [@dadoonet](https://discuss.elastic.co/u/dadoonet)\
**Post date:** [June 19, 2019, 5:03am UTC](https://discuss.elastic.co/t/how-to-enable-stemmer-feature/186358/2 "2019-06-19T05:03:52Z")

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You can not run elasticsearch embedded. Read this [blog post](https://www.elastic.co/blog/elasticsearch-the-server).

Note that to run integration tests (not unit tests) you would probably prefer running that in something close to a production environment, like a real elasticsearch server instance. I shared some ideas about integration testing in this thread: [In memory testing with RestHighLevelClient](https://discuss.elastic.co/t/in-memory-testing-with-resthighlevelclient/106196/6)

Also this sample project shows how to use Elasticsearch Test Classes:

> **[joel-costigliola/elastic-search-test](https://github.com/joel-costigliola/elastic-search-test)**
>
> ESIntegTestCase example. Contribute to joel-costigliola/elastic-search-test development by creating an account on GitHub.

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<div class="post-metadata">

**Author:** ![ieiayaobb](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/ieiayaobb/32/48339_2.png) [@ieiayaobb](https://discuss.elastic.co/u/ieiayaobb)\
**Post date:** [June 20, 2019, 3:22am UTC](https://discuss.elastic.co/t/how-to-enable-stemmer-feature/186358/3 "2019-06-20T03:22:23Z")

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Thank you for replying.  
I'm using a very old version(2.4.1) and evaluating some tasks.  
Do you mean the stemming feature cannot be supported in Embedded mode, if it is, I'll prioritize the upgrading job and migration

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<div class="post-metadata">

**Author:** ![dadoonet](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dadoonet/32/137187_2.png) [@dadoonet](https://discuss.elastic.co/u/dadoonet)\
**Post date:** [June 20, 2019, 5:43am UTC](https://discuss.elastic.co/t/how-to-enable-stemmer-feature/186358/4 "2019-06-20T05:43:54Z")

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Embedding à node is not supported. There's no embedded mode.

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<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [July 18, 2019, 5:43am UTC](https://discuss.elastic.co/t/how-to-enable-stemmer-feature/186358/5 "2019-07-18T05:43:55Z")

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