Server System Variables myisam_recover_options=’BACKUP,FORCE’ ). See Section 5.1.8, “Server System Variables” , and Section 16.2.1, “MyISAM Startup Options” . If you start  mysqld  with  --skip-new ,  delay_key_write  is set to  OFF . If you enable external locking with  --external-locking , there is no protection against index corruption for tables that use delayed key writes. Warning • delayed_insert_limit • delayed_insert_timeout • delayed_queue_size 792 Command-Line Format --delayed-queue-size=# Deprecated Yes System Variable delayed_queue_size Scope Global Command-Line Format --delayed-insert-timeout=# Deprecated Yes System Variable delayed_insert_timeout Scope Global Dynamic Yes SET_VAR  Hint Applies No Type Integer Default Value 300 This system variable is deprecated (because  DELAYED  inserts are not supported), and you should expect it to be removed in a future release. This system variable is deprecated (because  DELAYED  inserts are not supported), and you should expect it to be removed in a future release. Command-Line Format --delayed-insert-limit=# Deprecated Yes System Variable delayed_insert_limit Scope Global Dynamic Yes SET_VAR  Hint Applies No Type Integer Default Value 100 Minimum Value 1 Maximum Value (64-bit platforms) 18446744073709551615 Maximum Value (32-bit platforms) 4294967295