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Special Aspects for Elastic Search

Basically elastic search worker works as described in the optimized architecture. Currently Elastic Search 5 and Elastic Search 6 are supported.

Installation

To work properly Pimcore requires the Elasticsearch bindings, install them with: composer require elasticsearch/elasticsearch.

Index Configuration

Elastic search provides a couple of additional configuration options for the index to utilize elastic search features. See Configuration Details for more information.

Reindexing Mode

It is possible that Elastic Search cannot update the mapping, e.g. if data types of attributes change on the fly. For this case, a reindex is necessary. If it is necessary, a native ES reindex is executed automatically during bin/console ecommerce:indexservice:bootstrap --create-or-update-index-structure.

While reindex is executed, no updates are written to the ES index. The changes remain in store table and are transferred to index during next execution of bin/console ecommerce:indexservice:process-update-queue after reindex is finished.

All queries that take place during reindex go to the old index. As soon the reindex is finished, the current index is switched to the newly created index and the old index is deleted.
As a result, during reindex the results delivered by Product Lists can contain old data.

To manually start a reindex, following command can be used: bin/console ecommerce:indexservice:elasticsearch-sync reindex.

Indexing of Classification Store Attributes

With Elastic Search it is possible to index all attributes of Classification Store data without defining an attribute for each single classification store key.

For details see Filter Classification Store in Filter Service documentation.

Synonyms

Pimcore provides an out-of-the box integration for synonyms in elastic search. See Synonyms for details.