ElasticStore

N/A
Provides information about using Elasticsearch
Table of Contents

Search feature information
ElasticStore the component to establish a connection between Semantic MediaWiki and a Elasticsearch cluster.
Collection
Keywords
elasticstore · elasticsearch · search · semantic search · search interface · functional class · full-text search · relevancy scoring

The ElasticStore was introduced as part of Semantic MediaWiki 3.01 to provide a powerful and scalable Query Engine that can serve enterprise users and wiki-farm users better by moving query heavy computation to an external entity (meaning separated from the main DB master/replica) known as Elasticsearch.2.

{{#github:src/Elastic/README.md}}

Upgrading ElasticSearch with SMW 4.1.3

If you are using ElasticStore as a backend, then you need to perform the following changes when using SMW 4.1.3 or above3:

• Step 1: Upgrade your version of Elastic Search to 7.10.2 (if you are using docker that should work without any other action than changing the version number)
• Step 2: Make sure your version of the elasticsearch package is right, you might want to add it to the composer.local.json: `COMPOSER=composer.local.json composer require elasticsearch/elasticsearch "7.17.2"`
• Step 3: Add $smwgElasticsearchCredentials after $smwgElasticsearchEndpoints:

$smwgElasticsearchEndpoints = [ [ 'host' => $elasticSearchHost,
                                  'port' => 9200,
                                  'scheme' => 'http',
                                  'user' => $elastic_user,
                                  'pass' => $elastic_password ] ];
$smwgElasticsearchCredentials = [
    'host' => $elasticSearchHost,
    'port' => 9200,
    'scheme' => 'http',
    'user' => $elastic_user,
    'pass' => $elastic_password,
];

See also

Elasticsearch consumes a lot of resources. Make sure that you allocate sufficient resources. If unsure check your system regularly for errors potentially related to the lack of resources.4

Hardware

• www.quora.com: What hardware is best for ElasticSearch?
• www.elastic.co: Hardware

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