jtdevops

Note that offline compaction requires a long duration of downtime from 30 minutes to 7 hours (and in extreme cases more time).

Offline Oak compaction with debug logging:

1. Stop Oak / AEM
2. Install the latest Oak hotfix to your AEM instance:

• AEM 6.0 - https://helpx.adobe.com/experience-manager/kb/aem6-available-hotfixes.html
• AEM 6.1 - https://helpx.adobe.com/experience-manager/kb/aem61-available-hotfixes.html
• AEM 6.2 - https://helpx.adobe.com/experience-manager/kb/aem62-available-hotfixes.html
• Later - https://helpx.adobe.com/experience-manager/aem-releases-updates.html

jtdevops

The objective here is to find all SegmentNotFoundException type corruption and remove it (as we don't have a valid backup)

Before running any of the below steps we created an index.json file (see the file below) which contains only the index definitions of the corrupted indexes.

1. This generates the file indexing-results\index-definities.json

java -Xmx8g -jar oak-run-1.8.12.jar index --fds-path=crx-quickstart\repository\datastore crx-quickstart\repository\segmentstore --index-definitions

2. From that file we copied only the definitions we needed and created index.json (file attached here )