A new TTL (Time To Live) Index of 5 min is introduced for property "creationDate" in collection events_ (database: blueprint_internal_models). The index is required to reduce network traffic between MongoDB and ModelService (e.g. in Studio) due to event handling. The index can be configured via Configuration Property elastic.core.event-collection-ttl-sec. Set to 0 to disable the index. Note that the existing index on field "creationDate" must be dropped manually for existing MongoDB deployments, before the new index is created. Otherwise the new index cannot be created.

(CMS-16561)