Domain-Driven Design in PHP

With Elasticsearch

According to Elasticsearch: The Definitive Guide, when OCC is used by Elasticsearch:

This approach assumes that conflicts are unlikely to happen and doesn't block operations from being attempted. However, if the underlying data has been modified between reading and writing, the update will fail. It is then up to the application to decide how it should resolve the conflict. For instance, it could reattempt the update, using the fresh data, or it could report the situation to the user.

Elasticsearch is distributed. When documents are created, updated, or deleted, the new version of the document has to be replicated to other nodes in the cluster. Elasticsearch is also asynchronous and concurrent, meaning that these replication ...