These are usage stats that are gathered via Tomcat and periodically moved to the Cluster so it can be added to the index. Currently this data is served up with the internal API /1/catalog/eicstats.
Please open at case with Global Support as I currently don't know of a way to turn them off. Although I would leave them on as they are harmless.
Sorry for the late response. Thanks. I was not sure if I accidentally enabled log viewing that require additional resources and thus my Catalog Service is failing due to that after the upgrade.