Why Is the Query and Index Log Empty?

If the query/index log remains blank despite clicking View Log, two things can be in cause:

• For query and index logs: No querying or indexing action has occurred during the specified time period. Try modifying the period. Remember that logs are deleted after the number of days (see Modifying the Log Settings).
• For query log: Query logging is disabled. Enable logs (see Modifying the Log Settings).