How to re-index a site?
Is it possible to run a partial re-indexation of the JCR repositories?
The partial re-indexation of the JCR repositories is not possible; the only way to fully re-index the JCR repositories.
Here are details in our documentation: https://www.jahia.com/community/extend/developers-techwiki/search/search-and-indexing-configuration
The re-indexation has been greatly improved since the DX 188.8.131.52 version as mentioned in the following changelog:
Fixed broken "Repository index physical check" in the "Search Engine Management.