If Index Server is shut down abruptly or corruption is detected during normal operation, the property cache will be marked as corrupted. A recovery action will be performed on the property cache when Index Server is restarted. One event log message is written at the beginning of the recovery action and another at the end of recovery. During recovery, queries will be allowed, but filtering will not start until the recovery is completed. No manual intervention is needed.
The addition of a new registry parameter greatly reduces the chances of a corrupt property cache. For details about how to fine tune this feature, see Main Registry Parameters.