When recovery fails during log replay of the SAP HANA database, what is the quickest solution to recover?

The quickest solution to recover when log replay during an SAP HANA database recovery fails is to resume the interrupted recovery process. This option allows for a continuation of the recovery operations without needing to start from scratch. When a recovery process is interrupted, it often leaves the database in a state that can be redone from the point of interruption, enabling the system to pick up right where it left off and finish the log replay efficiently.

Starting a full database restore or performing a manual log backup would require more time and resources, as these would involve larger, more comprehensive operations, essentially restarting the recovery process or needing to create additional backups. Contacting technical support is another potential avenue but does not directly address the immediate need for recovery and would likely lead to delays while waiting for assistance. Therefore, resuming the interrupted recovery process is the most direct and expedient response to the situation.