CONTAP-165769: security key-manager sync-key-cache can add a NULL entry to the MDB cache and run indefinitely
Issue
- If 'security key-manager sync-key-cache' encounters an AES-XTS key with an AES or XTS component missing on the key server, it will add an invalid entry with zeroed values to the MDB cache.
- Once the errant entry is present in the MDB cache, the
sync-key-cache
job will run indefinitely.