How to optimize Oak Lucene indexes to reduce indexing time

Description

Environment

• Adobe Experience Manager 6.0 + Oak 1.0.16 or later
• Adobe Experience Manager 6.1 and 6.2

Issue/Symptoms
Optimize the AEM Oak Lucene indexes to reduce reindexing time.

Resolution

You can optimize the Oak Lucene indexes by fine-tuning the oak: QueryIndexDefinition with properties such as includedPaths, excludedPaths, name and indexPath.

• includedPaths and excludedPaths properties restrict what paths the index traverses when reindexing and which paths it listens to for index updates.
• name and indexPath properties make index logs easier to understand as they would tag the log messages with the path or name of the index. For example:

Steps to optimize the indexes:

1. Go to http://aem-host:port/crx/de/index.jspand log in as admin.
2. Browse to /oak:index.
3. Add the properties highlighted below 1 to the corresponding indexes. The includedPaths and excludedPaths properties should be multi-value String (String).
4. Click Save All in CRXDe.

1 /oak:index property modifications