For servers that have an update that is earlier than Exchange Server 2013 Cumulative Update 5, run the following command to determine which resource may be causing this issue:
- Run the following commands to stop the Microsoft Exchange Search and Microsoft Exchange Search Host Controller services:Stop-Service MSExchangeFastSearchStop-Service HostControllerService
- After the services are stopped, delete the Exchange content index catalog for the database.
- Run the following commands to restart the Microsoft Exchange Search and Microsoft Exchange Search Host Controller services:Start-Service MSExchangeFastSearchStart-Service HostControllerService
- After you restart these services, Exchange Search will rebuild the content index catalog.