Empty the IBM® Content Search Services index request table before you upgrade Content Platform Engine.
For systems configured with IBM Content Search Services, plan to flush as many index requests as possible before starting the upgrade. Part of the automatic upgrade of the Content Platform Engine (or Content Engine) database includes a change to the index request table. If there are more than 500,000 records in that table when the automatic upgrade runs, a new required index will not be created. A message will be logged and the database administrator must manually build the new index before upgrading the IBM Content Search Services software. This index must exist before the Content Platform Engine and IBM Content Search Services software is used for production.
To determine the size of the index request table: