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Oak Lucene Index - Improve the query performance in AEM(Adobe Experience Manager) | Configure Oak… | AEM Community Blog Seeding

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kautuk_sahni

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kautuk_sahni

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959

Correct Answer

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kautuk_sahni
Community Manager

28-06-2020

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Oak Lucene Index - Improve the query performance in AEM(Adobe Experience Manager) | Configure Oak… by techforum

Abstract

This tutorial explains the details on enabling Oak Lucene Index to improve the query performance in AEM(Adobe Experience Manager)
OAK Lucene Index
For queries to perform well, Oak supports indexing of content that is stored in the repository. When a JCR query gets executed, usually it searches the index first. If there is no index, the query executes for the entire content. This is time consuming and an overhead for the AEM. A query can be executed without an index, but for large datasets, it will execute very slowly, or even abort.
There are three types of indexing mode available that defines how comparing is performed, and when the index content gets updated
Synchronous Indexing — Under synchronous indexing, the index content gets updates as part of the commit itself. Changes to both the main content, as well as the index content, are done atomically in a single commit. The new content is added into the index as soon as available.

Configure Lucene Index in AEM
Oak supports Lucene based indexes to support both property constraint and full text constraints. Depending on the configuration a Lucene index can be used to evaluate property constraints, full text constraints, path restrictions and sorting.

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