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Last updated: 2026-07-09 16:37:22

Product Feature List
This document introduces the functional differences supported by various architecture types of TencentDB for MySQL, along with the latest pre-release features. This helps you better understand the characteristics of each architecture, experience the newest features faster, and select instances based on your specific needs.
Note:
The "-" symbol in the table below indicates not supported.
You can click the corresponding table title to switch between the feature differences list and the pre-release features list.
Feature attribute
Feature Name
Cluster Edition
Four-Node
Three-Node
Two-Node
﻿
Single-Node
﻿
Lifecycle
Isolation policy
Standard
Enhanced
Flagship
General
Exclusive
General
Exclusive
Economical
General
Exclusive
General (read-only instances)
basic (cloud disk edition)
﻿
Supported Version
MySQL 5.7
MySQL 8.0
MySQL 8.4
MySQL 5.6
MySQL 5.7
MySQL 8.0
MySQL 8.4
MySQL 5.6
MySQL 5.7
MySQL 8.0
MySQL 8.4
MySQL 5.7
MySQL 8.0
MySQL 5.5
MySQL 5.6
MySQL 5.7
MySQL 8.0
MySQL 8.4
MySQL 5.6
MySQL 5.7
MySQL 8.0
MySQL 8.4
MySQL 5.7,8.0
MySQL 8.4
﻿
Number of Nodes
1 read-write node
1 - 5 read-only nodes
1 - 15 independent read-only instances
4
3
2
2
1
1
﻿
Memory/Disk
standard: up to 216GB/30TB
enhanced: up to 1536GB/30TB
Up to 720GB/12TB
Up to 720GB/12TB
Up to 16GB/200GB
Up to 720GB/12TB
Up to 720GB/12TB
Up to 16GB/30TB
﻿
Creating an Instance
Supported
Supported
Supported
Supported
Supported
Supported
Supported
﻿
CreateReadOnlyDBInstances
Supported (adding read-only nodes or creating new standalone read-only instances)
Supported
Supported
Supported
Supported (MySQL 5.6, 5.7, 8.0 only)
Supported
-
﻿
Create DR Instance.
Supported
Supported
Supported
-
Supported (MySQL 5.6, 5.7, 8.0 only)
-
-
﻿
Terminating an Instance
Supported
Supported
Supported
Supported
Supported
Supported
Supported
﻿
switching from pay-as-you-go to yearly/monthly subscription
Supported
Supported
Supported
-
Supported
Supported
Supported
﻿
auto-renewal
Supported
Supported
Supported
Supported
Supported
Supported
Supported
Instance management
Set the instance maintenance window.
Supported
Supported
Supported
Supported
Supported
Supported
Supported
﻿
Assigning a Project to the Instance
Supported
Supported
Supported
Supported
Supported
Supported
Supported
﻿
Configuration Adjustment
Supported
Supported
Supported
Supported
Supported
Supported
Supported
﻿
Migrating instances to other AZs
Supported
Supported
Supported
-
Supported
-
-
﻿
Modify the port number.
Supported
Supported
Supported
Supported
Supported
Supported
Supported
﻿
Primary-secondary switch
Supported
Supported
Supported
Supported
Supported
-
-
﻿
Modify data replication modes.
Supported
Supported
Supported
Supported
Supported
-
-
Version upgrade
Upgrade the database engine version.
-
Supported
Supported
Supported
Supported (only MySQL 5.5 and 5.6).
Supported
-
﻿
Upgrading the Kernel Minor Version
Supported
Supported
Supported
Supported
Supported
Supported
Supported
Architecture upgrade
Adjusting the Number of Nodes.
Supports (can quickly add or remove 1 - 5 nodes, making it more flexible)
Supported
Supported
-
Supported
-
-
﻿
Upgrade to Cloud Disk Edition from Dual-Node
-
-
-
-
Supported
-
-
﻿
Upgrade to Cloud Disk Edition from Tri-Node
-
-
Supported
-
-
-
-
Supporting engine
InnoDB
Supported
Supported
Supported
Supported
Supported
Supported
Supported
﻿
RocksDB
Supported
-
Supported
Supported
Supported
-
-
﻿
LibraDB
-
-
Supported
Supported
Supported
-
-
Backup and Restore
Automatic Backup
Supported
Supported
Supported
Supported
Supported
-
Supported
﻿
Manual Backup
Supported
Supported
Supported
Supported
Supported
-
Supported
﻿
Cross-Region Backup
Supported
Supported
Supported
Supported
Supported
-
-
﻿
Downloading Backup Files
-
Supported
Supported
Supported
Supported
-
-
﻿
Deleting backups
Support (manual snapshot backups can be deleted)
Supported
Supported
Supported
Supported
-
-
﻿
Cloning an Instance
Supported
Supported
Supported
Supported
Supported
-
Supported
﻿
Performing a Rollback.
Supported
Supported
Supported
Supported
Supported
-
-
﻿
Regular Backup Retention
-
Supported
Supported
Supported
Supported
-
-
﻿
Backup Encryption
-
Supported
Supported
Supported
Supported
-
-
Backup
Backup Archiving to Cold Storage
-
Supported
Supported
Supported
Supported
-
-
Monitoring and alarm
Resource Monitor
Supported
Supported
Supported
Supported
Supported
Supported
Supported
﻿
Engine monitoring
Supported
Supported
Supported
Supported
Supported
Supported
Supported
﻿
Deploy monitoring.
Supported
Supported
Supported
Supported
Supported
-
-
﻿
Alarms
Supported
Supported
Supported
Supported
Supported
Supported
Supported
Account management
Creating an Account
Supported
Supported
Supported
Supported
Supported
Supported
Supported
﻿
Setting Password Complexity
Supported
Supported
Supported
Supported
Supported
-
-
﻿
Resetting Password
Supported
Supported
Supported
Supported
Supported
Supported
Supported
﻿
Modifying Account Permissions
Supported
Supported
Supported
Supported
Supported
Supported
Supported
﻿
Modify authorized access host addresses.
Supported
Supported
Supported
Supported
Supported
Supported
Supported
﻿
Delete account.
Supported
Supported
Supported
Supported
Supported
Supported
Supported
Database management
DMC Console
Supported
Supported
Supported
Supported
Supported
Supported
Supported
Data security
Security Group
Supported
Supported
Supported
Supported
Supported
Supported
Supported
﻿
SQL Insight (formerly Database Audit)
-
Supported
Supported
-
Supported (MySQL 5.6 and 5.7 only)
-
-
﻿
Enable Transparent Data Encryption.
-
-
Supported (MySQL 5.7, 8.0 only)
-
Supported (MySQL 5.7, 8.0 only)
-
-
﻿
Configure SSL Encryption
-
-
Supported (MySQL 5.6, 5.7, 8.0 only)
Supported
Supported (MySQL 5.6, 5.7, 8.0 only)
-
-
Data channel
Use DTS service to migrate
Supported
Supported
Supported
Supported
Supported
Supported
Supported
﻿
Offline migration
-
Supported
Supported
Supported
Supported
-
-
﻿
Importing SQL Files
Supported
Supported
Supported
Supported
Supported
-
-
Parameter management
Configuring Instance Parameters
Supported
Supported
Supported
Supported
Supported
Supported
Supported
﻿
Intelligent Parameter Tuning
-
-
Supported
Supported
Supported
-
-
Network
Switch Network.
Supported
Supported
Supported
Supported
Supported
Supported
Supported
﻿
Enable public network connection address.
Supported
Supported
Supported
Supported
Supported
-
Supported
Performance
Database Proxy
Supported
Supported
Supported
-
Supported
-
-
﻿
Network Forwarding
Supported
Supported
Supported
Supported
Supported
-
-
﻿
Parallel Query
Supported
-
Supports (MySQL 8.0 kernel version 20220831 and above)
Supports (MySQL 8.0 kernel version 20220831 and above)
Supports (MySQL 8.0 kernel version 20220831 and above)
Supports (MySQL 8.0 kernel version 20220831 and above)
Supports (MySQL 8.0 kernel version 20220831 and above)
﻿
CPU Elastic Scale-Out
-
General Supported
General Supported
-
General Supported
Supported
-
Operation logs
Slow logs
Supported
Supported
Supported
Supported
Supported
Supported
Supported
﻿
Slow log download
-
Supported
Supported
Supported
Supported
Supported
-
﻿
Error logs
Supported
Supported
Supported
Supported
Supported
Supported
Supported
﻿
Rollback logs
Supported
Supported
Supported
Supported
Supported
-
-
﻿
Log Shipping
Supported
Supported
Supported
Supported
Supported
Supported
-

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Feature attribute	Feature Name	Cluster Edition	Four-Node	Three-Node	Two-Node			Single-Node
Lifecycle	Isolation policy	Standard Enhanced Flagship	General Exclusive	General Exclusive	Economical	General Exclusive	General (read-only instances)	basic (cloud disk edition)
		Supported Version	MySQL 5.7 MySQL 8.0 MySQL 8.4	MySQL 5.6 MySQL 5.7 MySQL 8.0 MySQL 8.4	MySQL 5.6 MySQL 5.7 MySQL 8.0 MySQL 8.4	MySQL 5.7 MySQL 8.0	MySQL 5.5 MySQL 5.6 MySQL 5.7 MySQL 8.0 MySQL 8.4	MySQL 5.6 MySQL 5.7 MySQL 8.0 MySQL 8.4	MySQL 5.7,8.0 MySQL 8.4
		Number of Nodes	1 read-write node 1 - 5 read-only nodes 1 - 15 independent read-only instances	4	3	2	2	1	1
		Memory/Disk	standard: up to 216GB/30TB enhanced: up to 1536GB/30TB	Up to 720GB/12TB	Up to 720GB/12TB	Up to 16GB/200GB	Up to 720GB/12TB	Up to 720GB/12TB	Up to 16GB/30TB
		Creating an Instance	Supported	Supported	Supported	Supported	Supported	Supported	Supported
		CreateReadOnlyDBInstances	Supported (adding read-only nodes or creating new standalone read-only instances)	Supported	Supported	Supported	Supported (MySQL 5.6, 5.7, 8.0 only)	Supported	-
		Create DR Instance.	Supported	Supported	Supported	-	Supported (MySQL 5.6, 5.7, 8.0 only)	-	-
		Terminating an Instance	Supported	Supported	Supported	Supported	Supported	Supported	Supported
		switching from pay-as-you-go to yearly/monthly subscription	Supported	Supported	Supported	-	Supported	Supported	Supported
		auto-renewal	Supported	Supported	Supported	Supported	Supported	Supported	Supported
Instance management	Set the instance maintenance window.	Supported	Supported	Supported	Supported	Supported	Supported	Supported
		Assigning a Project to the Instance	Supported	Supported	Supported	Supported	Supported	Supported	Supported
		Configuration Adjustment	Supported	Supported	Supported	Supported	Supported	Supported	Supported
		Migrating instances to other AZs	Supported	Supported	Supported	-	Supported	-	-
		Modify the port number.	Supported	Supported	Supported	Supported	Supported	Supported	Supported
		Primary-secondary switch	Supported	Supported	Supported	Supported	Supported	-	-
		Modify data replication modes.	Supported	Supported	Supported	Supported	Supported	-	-
Version upgrade	Upgrade the database engine version.	-	Supported	Supported	Supported	Supported (only MySQL 5.5 and 5.6).	Supported	-
Version upgrade		Upgrading the Kernel Minor Version	Supported	Supported	Supported	Supported	Supported	Supported	Supported
Architecture upgrade	Adjusting the Number of Nodes.	Supports (can quickly add or remove 1 - 5 nodes, making it more flexible)	Supported	Supported	-	Supported	-	-
		Upgrade to Cloud Disk Edition from Dual-Node	-	-	-	-	Supported	-	-
		Upgrade to Cloud Disk Edition from Tri-Node	-	-	Supported	-	-	-	-
Supporting engine	InnoDB	Supported	Supported	Supported	Supported	Supported	Supported	Supported
		RocksDB	Supported	-	Supported	Supported	Supported	-	-
		LibraDB	-	-	Supported	Supported	Supported	-	-
Backup and Restore	Automatic Backup	Supported	Supported	Supported	Supported	Supported	-	Supported
		Manual Backup	Supported	Supported	Supported	Supported	Supported	-	Supported
		Cross-Region Backup	Supported	Supported	Supported	Supported	Supported	-	-
		Downloading Backup Files	-	Supported	Supported	Supported	Supported	-	-
		Deleting backups	Support (manual snapshot backups can be deleted)	Supported	Supported	Supported	Supported	-	-
		Cloning an Instance	Supported	Supported	Supported	Supported	Supported	-	Supported
		Performing a Rollback.	Supported	Supported	Supported	Supported	Supported	-	-
		Regular Backup Retention	-	Supported	Supported	Supported	Supported	-	-
		Backup Encryption	-	Supported	Supported	Supported	Supported	-	-
	Backup	Backup Archiving to Cold Storage	-	Supported	Supported	Supported	Supported	-	-
Monitoring and alarm	Resource Monitor	Supported	Supported	Supported	Supported	Supported	Supported	Supported
		Engine monitoring	Supported	Supported	Supported	Supported	Supported	Supported	Supported
		Deploy monitoring.	Supported	Supported	Supported	Supported	Supported	-	-
		Alarms	Supported	Supported	Supported	Supported	Supported	Supported	Supported
Account management	Creating an Account	Supported	Supported	Supported	Supported	Supported	Supported	Supported
		Setting Password Complexity	Supported	Supported	Supported	Supported	Supported	-	-
		Resetting Password	Supported	Supported	Supported	Supported	Supported	Supported	Supported
		Modifying Account Permissions	Supported	Supported	Supported	Supported	Supported	Supported	Supported
		Modify authorized access host addresses.	Supported	Supported	Supported	Supported	Supported	Supported	Supported
		Delete account.	Supported	Supported	Supported	Supported	Supported	Supported	Supported
Database management	DMC Console	Supported	Supported	Supported	Supported	Supported	Supported	Supported
Data security	Security Group	Supported	Supported	Supported	Supported	Supported	Supported	Supported
		SQL Insight (formerly Database Audit)	-	Supported	Supported	-	Supported (MySQL 5.6 and 5.7 only)	-	-
		Enable Transparent Data Encryption.	-	-	Supported (MySQL 5.7, 8.0 only)	-	Supported (MySQL 5.7, 8.0 only)	-	-
		Configure SSL Encryption	-	-	Supported (MySQL 5.6, 5.7, 8.0 only)	Supported	Supported (MySQL 5.6, 5.7, 8.0 only)	-	-
Data channel	Use DTS service to migrate	Supported	Supported	Supported	Supported	Supported	Supported	Supported
		Offline migration	-	Supported	Supported	Supported	Supported	-	-
		Importing SQL Files	Supported	Supported	Supported	Supported	Supported	-	-
Parameter management	Configuring Instance Parameters	Supported	Supported	Supported	Supported	Supported	Supported	Supported
Parameter management		Intelligent Parameter Tuning	-	-	Supported	Supported	Supported	-	-
Network	Switch Network.	Supported	Supported	Supported	Supported	Supported	Supported	Supported
Network		Enable public network connection address.	Supported	Supported	Supported	Supported	Supported	-	Supported
Performance	Database Proxy	Supported	Supported	Supported	-	Supported	-	-
		Network Forwarding	Supported	Supported	Supported	Supported	Supported	-	-
		Parallel Query	Supported	-	Supports (MySQL 8.0 kernel version 20220831 and above)	Supports (MySQL 8.0 kernel version 20220831 and above)	Supports (MySQL 8.0 kernel version 20220831 and above)	Supports (MySQL 8.0 kernel version 20220831 and above)	Supports (MySQL 8.0 kernel version 20220831 and above)
		CPU Elastic Scale-Out	-	General Supported	General Supported	-	General Supported	Supported	-
Operation logs	Slow logs	Supported	Supported	Supported	Supported	Supported	Supported	Supported
		Slow log download	-	Supported	Supported	Supported	Supported	Supported	-
		Error logs	Supported	Supported	Supported	Supported	Supported	Supported	Supported
		Rollback logs	Supported	Supported	Supported	Supported	Supported	-	-
		Log Shipping	Supported	Supported	Supported	Supported	Supported	Supported	-

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