param
The degradation threshold time of the semi-synchronous replication mode. This parameter value is required only when semi-synchronous replication is enabled. The unit is milliseconds, and the range is 10ms to 60000ms. The default value is 500ms. Please refer to: https://www.alibabacloud.com/help/en/redis/user-guide/modify-the-synchronization-mode-of-a-persistent-memory-optimized-instance.