Access AEM Tools > Configuration > Maintenance.
Disable online compaction in Adobe Experience Manager
Learn how to disable online compaction in AEM 6.2
Follow the below steps to disable online compaction on AEM 6.2:
Delete the Daily Maintenance Window job.
When online compaction is enabled the message below is seen in the error.log:
[\author\crx-quickstart\repository\segmentstore], active since Wed Dec 14 14:19:00 EST 2016, previous max duration 0ms] org.apache.jackrabbit.oak.plugins.segment.file.FileStore TarMK GC #1: started