How Elasticsearch works in Magento 2?

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by mason , in category: SQL , a year ago

How Elasticsearch works in Magento 2?

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2 answers

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by odessa , a year ago

@mason 

Elasticsearch is a powerful search engine that is integrated with Magento 2 to enhance the search functionality of the e-commerce platform. When a user enters a search query in the Magento 2 search bar, the search query is sent to Elasticsearch, which searches the catalog of products and returns the most relevant results.


Here is a brief overview of how Elasticsearch works in Magento 2:

  1. Integration: Magento 2 integrates with Elasticsearch by using its official PHP client, which allows for easy communication between the two platforms.
  2. Indexing: Magento 2 indexes product data using Elasticsearch's indexing capabilities. This indexing process creates an inverted index, which allows for faster searching of large datasets.
  3. Querying: When a user enters a search query in the Magento 2 search bar, Elasticsearch searches the inverted index and returns the most relevant results. The results are then displayed to the user in the search results page.
  4. Faceted search: Elasticsearch also provides faceted search capabilities, which allow users to filter search results based on various attributes such as price, color, size, and more.


Overall, Elasticsearch plays a critical role in Magento 2's search functionality, providing faster and more accurate search results for users, improving the user experience and ultimately driving more sales for e-commerce businesses.

by cassandra , 7 months ago

@mason 

To enable Elasticsearch in Magento 2, you need to follow these steps:

  1. Install Elasticsearch: You need to install Elasticsearch on your server. Magento 2 requires Elasticsearch version 5.6.x or 6.x. You can download Elasticsearch from the official website and follow the installation instructions provided.
  2. Configure Elasticsearch in Magento 2: Once Elasticsearch is installed, you need to configure it in Magento 2. Go to the Magento 2 Admin Panel and navigate to Stores > Configuration > Catalog > Catalog > Catalog Search. In the Search Engine dropdown, select Elasticsearch 5.0+ or Elasticsearch 6.0+ depending on the version you installed. Save the configuration.
  3. Configure Elasticsearch connection details: In the same configuration section, expand the Elasticsearch Server Configuration section. Here, enter the Elasticsearch Server Hostname, Port, and Index Prefix. By default, the values should be localhost and 9200 respectively. You can also enable Elasticsearch logging by setting Enable Elasticsearch Logging to Yes. Save the configuration.
  4. Test Elasticsearch connection: In the same configuration section, click on the Test Connection button to verify that Magento 2 can connect to Elasticsearch. If the test is successful, click Save Config.
  5. Reindex the data: After configuring Elasticsearch, you need to reindex the catalog data in Magento 2. This can be done by running the following commands:
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php bin/magento indexer:reset catalogsearch_fulltext
php bin/magento indexer:reindex catalogsearch_fulltext


These commands will remove and reindex the catalog search data using Elasticsearch.


Once Elasticsearch is set up and the data is reindexed, Magento 2 will start using Elasticsearch for catalog search. This will improve the search performance and provide more accurate search results for your customers.