RDS.HA.Mysql

replicationMode

Yes

string

Synchronization parameter of the standby node

Value Description: The options are async and semisync. async indicates the asynchronous mode. semisync indicates the semi-synchronous mode.

Value Constraint: {u'valid_values': [u'async', u'semisync']}

Suggestion: Set the value based on the live environment.

enable

Yes

string

Whether HA is supported

Value Description: The options are true and false.

Value Constraint: 1. The HA parameter must be consistent with the specification parameter. 2. Note that the parameter must be in the character string format. When a YAML template is used, quotation marks ('' '') must be added because the values true and false are considered as Boolean values in the YAML template.

Suggestion: If the instance specifications name contains the HA parameter, set this parameter to true. Otherwise, set this parameter to false.