Supported Databases

Real-Time Migration

You can migrate all database objects across cloud platforms, from on-premises databases to the cloud, or across regions on the cloud in real time. The following table lists the supported databases, versions, and migration types. For more information about real-time migration, see Real-Time Migration.

Self-managed databases (such as MySQL and MongoDB) include on-premises databases and databases created on an ECS. RDS for MySQL refers to the MySQL databases on Huawei Cloud RDS instances.

• Some functions are only available for whitelisted users. To use these functions, submit a service ticket. In the upper right corner of the management console, choose Service Tickets > Create Service Ticket.
• The destination database version must be the same as or later than the source database version.

• MySQL Serving as the Source in Migration

  Table 1 Database information

  Source DB Engine	Source DB Type and Version	Destination DB Type and Version	Migration Type
  MySQL	Self-managed MySQL Versions 5.5, 5.6, 5.7, and 8.0 MySQL on other clouds Versions 5.5, 5.6, 5.7, and 8.0	RDS for MySQL All versions	Full Full+Incremental
  		DDM The same version as that of the associated RDS instance.	Full Full+Incremental
  		GaussDB(for MySQL) Compatible with MySQL 8.0	Full Full+Incremental
  	RDS for MySQL All versions	RDS for MySQL All versions	Full Full+Incremental
  		Self-managed or other cloud MySQL Versions 5.5, 5.6, 5.7, and 8.0	Full Full+Incremental
  		DDM The same version as that of the associated RDS instance.	Full Full+Incremental
  		GaussDB(for MySQL) Compatible with MySQL 8.0	Full Full+Incremental

• MongoDB Serving as the Source in Migration

  Table 2 Database information

  Source DB Engine	Source DB Type and Version	Destination DB Type and Version	Migration Type
  MongoDB	Self-managed MongoDB Versions 3.2, 3.4, 3.6, 4.0, 4.2, 4.4, and 5.0 MongoDB on other clouds Versions 3.2, 3.4, 3.6, 4.0, 4.2, 4.4, and 5.0 DDS Versions 3.2, 3.4, 4.0, 4.2, 4.4, and 5.0 NOTE: The source does not support GeminiDB Mongo.	DDS Versions 3.4, 4.0, 4.2, 4.4, and 5.0 NOTE: DDS 5.0 supports replica sets only.	Full Full+Incremental migration supports the following scenarios: Replica set -> Replica set Replica set -> Cluster Cluster -> Cluster Cluster -> Replica set NOTE: If the source is a DDS cluster instance, the incremental migration can only be performed in the VPC network. To perform a full+incremental migration for a single node instance, the source database must be a Huawei Cloud single node instance.
  MongoDB	Self-managed MongoDB Versions 3.2, 3.4, and 4.0 MongoDB on other clouds Versions 3.2, 3.4, and 4.0 DDS Versions 3.4 and 4.0 NOTE: The source does not support GeminiDB Mongo.	GeminiDB Mongo Versions 3.4 and 4.0	Full Full+Incremental migration supports the following scenarios: Replica set -> Replica set Replica set -> Cluster Cluster -> Cluster NOTE: If the source is a DDS cluster, only full migration is supported.

• DDS Serving as the Source in Migration

  Table 3 Database information

  Source DB Engine	Source DB Type and Version	Destination DB Type and Version	Migration Type
  DDS	DDS Versions 3.2, 3.4, 4.0, 4.2, 4.4, and 5.0 NOTE: DDS 5.0 supports replica sets only.	Self-managed MongoDB Versions 3.2, 3.4, 3.6, 4.0, 4.2, 4.4, and 5.0 MongoDB on other clouds Versions 3.2, 3.4, 3.6, 4.0, 4.2, 4.4, and 5.0	Full Full+Incremental migration supports the following scenarios: Replica set -> Single node Replica set -> Replica set Replica set -> Cluster Single node -> Single node Single node -> Replica set Single node -> Cluster

• MySQL Schema and Logic Table Serving as the Source in Migration

  Table 4 Database information

  Source DB Engine	Source DB Type and Version	Destination DB Type and Version	Migration Type
  MySQL schema and logic table	DDM	DDM	Full Full+Incremental

• Redis Serving as the Source in Migration

  Table 5 Database information

  Source DB Engine	Source DB Type and Version	Destination DB Type and Version	Migration Type
  Redis	Self-managed official open-source single-node or master/standby Redis Versions 2.8.x, 3.0.x, 3.2.x, 4.0.x, and 5.0.x	GeminiDB Redis	Full Full+Incremental

• Redis Cluster Serving as the Source in Migration

  Table 6 Database information

  Source DB Engine	Source DB Type and Version	Destination DB Type and Version	Migration Type
  Redis Cluster	On-premises open-source Redis Cluster Versions 3.0.x, 4.0.x, and 5.0.x ECS-hosted open-source Redis Cluster Versions 3.0.x, 4.0.x, and 5.0.x	GeminiDB Redis	Full+Incremental

• GeminiDB Redis Serving as the Source in Migration

  Table 7 Database information

  Source DB Engine	Source DB Type and Version	Destination DB Type and Version	Migration Type
  GeminiDB Redis	GeminiDB Redis	Self-managed open-source Codis Version 3.0 or later Self-managed open-source single-node Redis Versions 2.8.x, 3.0.x, 3.2.x, 4.0.x, and 5.0.x Self-managed open-source master/standby Redis Versions 4.0.x and 5.0.x	Full+Incremental
  	GeminiDB Redis	Self-managed open-source Redis Cluster Version 4.0 or later	Full+Incremental

Backup Migration

You can export data from the source database to a backup file, upload the backup file to OBS, and then restore the backup file to the destination database. In this way, data migration can be complete without exposing your source database to the Internet. Table 8 lists the supported databases, versions, and migration types. For more information about backup migration, see Backup Migration.

The major version of the destination database must be the same as or later than that of the source database.

Real-Time Synchronization

Real-time synchronization refers to the process of copying data from one data source to another database while keeping data consistency. In this way, the data of key services can flow in real time. The following table lists the supported databases, versions, and synchronization types. For more information about real-time synchronization, see Real-Time Synchronization.

Self-managed databases (such as MySQL, Oracle, and PostgreSQL) include on-premises databases and databases created on an ECS. RDS for MySQL refers to the MySQL databases on Huawei Cloud RDS instances.

• Some functions are only available for whitelisted users. To use these functions, submit a service ticket. In the upper right corner of the management console, choose Service Tickets > Create Service Ticket.
• The destination database version must be the same as or later than the source database version.

• MySQL Serving as the Source in One-Way Synchronization

  Table 9 Database information

  Source DB Engine	Source DB Type and Version	Destination DB Type and Version	Synchronization Mode
  MySQL	Self-managed MySQL Versions 5.5, 5.6, 5.7, and 8.0 MySQL on other clouds Versions 5.5, 5.6, 5.7, and 8.0	RDS for MySQL All versions	Incremental Full Full+Incremental
  		GaussDB(for MySQL) Compatible with MySQL 8.0	Incremental Full+Incremental
  		RDS for PostgreSQL Versions 9.5, 9.6, 10, 11, 12, 13, 14, 15, and 16	Full Full+Incremental
  		GaussDB Distributed (MySQL-compatible) Version 1.0.0 or later	Incremental Full Full+Incremental
  		GaussDB Primary/Standby (B-compatible or M-compatible) Version 1.0.0 or later	Incremental Full Full+Incremental
  		GaussDB(DWS)	DataArts Migration is recommended.
  		Kafka Version 0.11 or later	Incremental Full+Incremental
  		RDS for MariaDB Version 10.5	Incremental Full Full+Incremental
  		CSS/ES ElasticSearch 5.5, 6.2, 6.5, 7.1, 7.6, 7.9 and 7.10 NOTE: Only whitelisted users can use this function.	Full+Incremental
  	RDS for MySQL All versions	RDS for MySQL All versions	Incremental Full+Incremental
  		Self-managed MySQL Versions 5.5, 5.6, 5.7, and 8.0 MySQL on other clouds Versions 5.5, 5.6, 5.7, and 8.0	Incremental Full+Incremental
  		GaussDB(for MySQL) Compatible with MySQL 8.0	Incremental Full+Incremental
  		RDS for PostgreSQL Versions 9.5, 9.6, 10, 11, 12, 13, and 14	Full Full+Incremental
  		GaussDB Distributed (MySQL-compatible) Version 1.0.0 or later	Incremental Full Full+Incremental
  		GaussDB Primary/Standby (B-compatible or M-compatible) Version 1.0.0 or later	Incremental Full Full+Incremental
  		GaussDB(DWS)	DataArts Migration is recommended.
  		Kafka Version 0.11 or later	Incremental Full+Incremental
  		Self-managed MariaDB Version 10.0, 10.1, 10.2, 10.3, 10.4, or 10.5 MariaDB on other clouds Version 10.0, 10.1, 10.2, 10.3, 10.4, or 10.5	Incremental Full Full+Incremental
  		CSS/ES ElasticSearch 5.5, 6.2, 6.5, 7.1, 7.6, 7.9 and 7.10 NOTE: Only whitelisted users can use this function.	Full+Incremental
  		Self-managed Oracle Versions 10g, 11g, 12c, 18c, and 19c	Full+Incremental

• MySQL Serving as the Source in Two-Way Synchronization

  Table 10 Database information

  Source DB Engine	Source DB Type and Version	Destination DB Type and Version	Synchronization Mode
  MySQL	Self-managed MySQL Versions 5.5, 5.6, 5.7, and 8.0 MySQL on other clouds Versions 5.5, 5.6, 5.7, and 8.0 RDS for MySQL All versions	RDS for MySQL All versions	Full+Incremental NOTE: Only whitelisted users can perform the two-way synchronization.
  	RDS for MySQL All versions	Self-managed MySQL Versions 5.5, 5.6, 5.7, and 8.0 MySQL on other clouds Versions 5.5, 5.6, 5.7, and 8.0 RDS for MySQL All versions	Full+Incremental NOTE: Only whitelisted users can perform the two-way synchronization.

• MariaDB Serving as the Source in Synchronization

  Table 11 Database information

  Source DB Engine	Source DB Type and Version	Destination DB Type and Version	Synchronization Mode
  MariaDB	On-premises MariaDB 10.3, 10.4, and 10.5 ECS-hosted MariaDB 10.3, 10.4, and 10.5 Other cloud MariaDB 10.3, 10.4, and 10.5	RDS for MariaDB Version 10.5	Full+Incremental
  	RDS for MariaDB Version 10.5	On-premises MariaDB Version 10.5 MariaDB built on ECSs Version 10.5 MariaDB built on other clouds Version 10.5	Full+Incremental
  MariaDB	On-premises MariaDB 10.0, 10.1, 10.2, 10.3, 10.4 and 10.5 ECS-hosted MariaDB 10.0, 10.1, 10.2, 10.3, 10.4 and 10.5 MariaDB 10.0, 10.1, 10.2, 10.3, 10.4 and 10.5 on other clouds	RDS for MySQL Versions 5.6, 5.7, and 8.0	Incremental Full+Incremental
  		GaussDB(for MySQL) Compatible with MySQL 8.0	Incremental Full+Incremental

• PostgreSQL Serving as the Source in Synchronization

  Table 12 Database information

  Source DB Engine	Source DB Type and Version	Destination DB Type and Version	Synchronization Mode
  PostgreSQL	Self-managed PostgreSQL Versions 9.4, 9.5, 9.6, 10, 11, 12, 13, 14, 15, and 16 PostgreSQL on other clouds Versions 9.4, 9.5, 9.6, 10, 11, 12, 13, 14, 15, and 16 RDS for PostgreSQL Versions 9.5, 9.6, 10, 11, 12, 13, 14, 15, and 16	RDS for PostgreSQL Versions 9.5, 9.6, 10, 11, 12, 13, 14, 15, and 16	Incremental Full Full+Incremental
  	Self-managed PostgreSQL Versions 9.4, 9.5, 9.6, 10, 11, 12, 13, 14, and 16 PostgreSQL on other clouds Versions 9.4, 9.5, 9.6, 10, 11, 12, 13, 14, and 16 RDS for PostgreSQL Versions 9.5, 9.6, 10, 11, 12, 13, 14, and 16	GaussDB(DWS) Versions 8.1.3 and 8.2.0 NOTE: Only whitelisted users can use this function.	Full+Incremental
  		GaussDB primary/standby	Incremental Full Full+Incremental NOTE: Only whitelisted users can perform the incremental data synchronization.
  		GaussDB distributed	Incremental Full Full+Incremental NOTE: Only whitelisted users can perform the incremental data synchronization.
  	RDS for PostgreSQL Versions 9.5, 9.6, 10, 11, 12, 13, 14, 15, and 16	Kafka Version 0.11 or later	Incremental
  	RDS for PostgreSQL Versions 9.5, 9.6, 10, 11, 12, 13, 14, 15, and 16	Self-managed PostgreSQL Versions 9.5, 9.6, 10, 11, 12, 13, and 14	Incremental Full Full+Incremental
  	Self-managed PostgreSQL Versions 9.4, 9.5, 9.6, 10, 11, 12, 13, 14, 15, and 16 PostgreSQL on other clouds Versions 9.4, 9.5, 9.6, 10, 11, 12, 13, 14, 15, and 16	Kafka Version 0.11 or later	Incremental

• Oracle Serving as the Source in Synchronization

  Table 13 Database information

  Source DB Engine	Source DB Type and Version	Destination DB Type and Version	Synchronization Mode
  Oracle	Self-managed Oracle Versions 10g, 11g, 12c, 18c, 19c, and 21c	RDS for MySQL All versions	Incremental Full Full+Incremental
  		GaussDB(for MySQL) Compatible with MySQL 8.0	Full Full+Incremental
  		RDS for PostgreSQL 9.5, 9.6, 10, 11, 12, 13, 14, 15, and 16	Full Full+Incremental
  		GaussDB primary/standby Version 1.0.0 or later	Incremental Full Full+Incremental
  		GaussDB distributed Version 1.0.0 or later	Incremental Full Full+Incremental
  		DDM	Full Full+Incremental
  		GaussDB(DWS) Versions 8.1.3 and 8.2.0 NOTE: Only whitelisted users can use this function.	Incremental Full Full+Incremental
  		Kafka Version 0.11 or later	Incremental

• DDM Serving as the Source in Synchronization

  Table 14 Database information

  Source DB Engine	Source DB Type and Version	Destination DB Type and Version	Synchronization Mode
  DDM	DDM	RDS for MySQL All versions	Incremental Full Full+Incremental
  		Self-managed or other cloud MySQL Versions 5.6, 5.7, and 8.0	Incremental Full Full+Incremental
  		DDM Based on the live network	Full+Incremental
  		GaussDB(DWS)	DataArts Migration is recommended.
  		Self-managed Oracle Versions 10g, 11g, 12c, 18c, and 19c	Incremental Full Full+Incremental
  		Kafka Version 0.11 or later	Incremental

• GaussDB(for MySQL) Serving as the Source in Synchronization

  Table 15 Database information

  Source DB Engine	Source DB Type and Version	Destination DB Type and Version	Synchronization Mode
  GaussDB(for MySQL)	GaussDB(for MySQL) Version 8.0	RDS for MySQL Version 8.0 Self-managed or other cloud MySQL Version 8.0	Incremental Full+Incremental
  		GaussDB(for MySQL) Compatible with MySQL 8.0	Incremental Full+Incremental
  		GaussDB(DWS)	DataArts Migration is recommended.
  		Kafka Version 0.11 or later	Incremental Full+Incremental
  		CSS/ES ElasticSearch 5.5, 6.2, 6.5, 7.1, 7.6, 7.9 and 7.10 NOTE: Only whitelisted users can use this function.	Full+Incremental
  		Self-managed Oracle Versions 10g, 11g, 12c, 18c, and 19c	Full+Incremental

• GaussDB Distributed Serving as the Source in Synchronization

  Table 16 Database information

  Source DB Engine	Source DB Type and Version	Destination DB Type and Version	Synchronization Mode
  GaussDB distributed	GaussDB distributed Version 1.1.0 or later	RDS for MySQL Versions 5.6 and 5.7	Full Incremental Full+Incremental
  		Self-managed or other cloud MySQL Versions 5.5, 5.6, and 5.7	Full Incremental Full+Incremental
  		Self-managed Oracle Versions 10g, 11g, 12c, 18c, and 19c	Full Incremental Full+Incremental
  		GaussDB(DWS) Versions 8.1.3 and 8.2.0 NOTE: Only whitelisted users can use this function.	Full Incremental Full+Incremental
  		Kafka Version 0.11 or later	Incremental
  		GaussDB distributed Version 1.1.0 or later	Full Incremental Full+Incremental
  		GaussDB primary/standby Version 1.1.0 or later	Full Incremental Full+Incremental

• GaussDB Primary/Standby Serving as the Source in Synchronization

  Table 17 Database information

  Source DB Engine	Source DB Type and Version	Destination DB Type and Version	Synchronization Mode
  GaussDB primary/standby	GaussDB primary/standby Version 1.3 or later	RDS for MySQL Versions 5.6 and 5.7	Full Incremental Full+Incremental
  		Self-managed or other cloud MySQL Versions 5.5, 5.6, and 5.7	Full Incremental Full+Incremental
  		Self-managed Oracle Versions 10g, 11g, 12c, 18c, and 19c	Full Incremental Full+Incremental
  		Kafka Version 0.11 or later	Incremental
  		GaussDB(DWS) Versions 8.1.3 and 8.2.0 NOTE: Only whitelisted users can use this function.	Full Incremental Full+Incremental
  		GaussDB distributed Version 1.1.0 or later	Full Incremental Full+Incremental
  		GaussDB primary/standby Version 1.1.0 or later	Full Incremental Full+Incremental

• MongoDB Serving as the Source in Synchronization

  Table 18 Database information

  Source DB Engine	Source DB Type and Version	Destination DB Type and Version	Synchronization Mode
  MongoDB	Self-managed MongoDB Versions 3.2, 3.4, 3.6, 4.0, 4.2, and 4.4 MongoDB on other clouds Versions 3.2, 3.4, 3.6, 4.0, 4.2, and 4.4 DDS Versions 3.2, 3.4, 4.0, 4.2, and 4.4 NOTE: The source does not support GeminiDB Mongo.	DDS Versions 3.4, 4.0, 4.2, and 4.4	Full+Incremental synchronization supports the following scenarios: Replica set -> Replica set

• DDS Serving as the Source in Synchronization

  Table 19 Database information

  Source DB Engine	Source DB Type and Version	Destination DB Type and Version	Synchronization Mode
  DDS	DDS Versions 3.2, 3.4, 4.0, 4.2, and 4.4	Self-managed MongoDB Versions 3.2, 3.4, 3.6, 4.0, 4.2, and 4.4 MongoDB on other clouds Versions 3.2, 3.4, 3.6, 4.0, 4.2, and 4.4	Incremental synchronization supports the following modes: Replica set -> Replica set Cluster -> Cluster (the source cluster version must be 4.0 or later)
  	DDS Versions 4.0, 4.2, and 4.4	Kafka Version 0.11 or later	Incremental

• DB2 for LUW Serving as the Source in Synchronization

  Table 20 Database information

  Source DB Engine	Source DB Type and Version	Destination DB Type and Version	Synchronization Mode
  DB2 for LUW	DB2 for LUW Versions 9.7, 10.1, 10.5, 11.1, and 11.5	GaussDB distributed Version 1.1.0 or later	Full Full+Incremental
  		GaussDB primary/standby Version 1.1.0 or later	Full Full+Incremental

• TiDB Serving as the Source in Synchronization

  Table 21 Database information

  Source DB Engine	Source DB Type and Version	Destination DB Type and Version	Synchronization Mode
  TiDB	TiDB Version 4.0.0 and later (excluding the development version)	GaussDB(for MySQL) Compatible with MySQL 8.0	Full+Incremental

• Microsoft SQL Server as the Source in Synchronization

  Table 22 Database information

  Source DB Engine	Source DB Type and Version	Destination DB Type and Version	Synchronization Mode
  Microsoft SQL Server	Self-managed Microsoft SQL Server Enterprise Edition 2012, 2014, 2016, 2017, 2019 and 2022 Standard Edition 2016 SP2 or later, 2017, 2019 and 2022 Microsoft SQL Server-compatible databases on other clouds Enterprise Edition 2012, 2014, 2016, 2017, 2019 and 2022 Standard Edition 2016 SP2 or later, 2017, 2019 and 2022 RDS for SQL Server Enterprise Edition 2012, 2014, 2016, 2017, 2019 and 2022 Standard Edition 2016 SP2 or later, 2017, 2019 and 2022	GaussDB(DWS) Versions 8.1.3 and 8.2.0 NOTE: Only whitelisted users can use this function.	Full+Incremental
  		GaussDB distributed Version 1.1.0 or later	Full Incremental Full+Incremental
  		GaussDB primary/standby Version 1.1.0 or later	Full Incremental Full+Incremental
  		RDS for SQL Server Enterprise Edition 2012, 2014, 2016, 2017, 2019 and 2022 Standard Edition 2016 SP2 or later, 2017, 2019 and 2022	Full+Incremental
  		Kafka Version 0.11 or later NOTE: Only whitelisted users can use this function.	Incremental
  		RDS for MySQL Versions 5.5, 5.6, 5.7, and 8.0 NOTE: Only whitelisted users can use this function.	Full Incremental Full+Incremental
  		GaussDB(for MySQL) Compatible with MySQL 8.0 NOTE: Only whitelisted users can use this function.	Full Incremental Full+Incremental
  		RDS for PostgreSQL Versions 9.5, 9.6, 10, 11, 12, 13, 14, 15, and 16 NOTE: Only whitelisted users can use this function.	Full Incremental Full+Incremental

• Cassandra Serving as the Source in Synchronization

  Table 23 Database information

  Source DB Engine	Source DB Type and Version	Destination DB Type and Version	Synchronization Mode
  Cassandra	Self-managed Cassandra Version 2.0 or later	GeminiDB Cassandra Version 2.0 or later	Full

• Dynamo Serving as the Source in Synchronization

  Table 24 Database information

  Source DB Engine	Source DB Type and Version	Destination DB Type and Version	Synchronization Mode
  Dynamo	DynamoDB on other clouds (web services)	GeminiDB Cassandra (DynamoDB API) Version 3.11 NOTE: Only whitelisted users can use this function.	Full Full+Incremental

Data Subscription

Data subscription is used to obtain data changes of key services in the database. DRS caches the data changes and provides a unified SDK interface for downstream services to subscribe to, obtain, and consume the changes. Table 25 describes the supported databases and data types. For details about data subscription, see Data Subscription.

Real-Time Disaster Recovery

To prevent service unavailability caused by regional faults, DRS provides disaster recovery to ensure service continuity. The floowing table lists the databases and versions supported by real-time DR. For more information about real-time DR, see Real-Time Disaster Recovery.

Self-managed databases (for example, MySQL) refer to on-premises databases and the databases created on an ECS. RDS for MySQL refers to the MySQL databases on Huawei Cloud RDS instances.

• Some functions are only available for whitelisted users. To use these functions, submit a service ticket. In the upper right corner of the management console, choose Service Tickets > Create Service Ticket.
• The destination database version must be the same as or later than the source database version.

• MySQL Serving as the Source in DR

  Table 26 Database information

  Service DB Engine	Service DB Type and Version	DR DB Type and Version
  MySQL	Self-managed MySQL Versions 5.6, 5.7, and 8.0 MySQL on other clouds Versions 5.6, 5.7, and 8.0	RDS for MySQL All versions
  		GaussDB(for MySQL) Compatible with MySQL 8.0
  	RDS for MySQL All versions	RDS for MySQL All versions
  		Self-managed MySQL Versions 5.6, 5.7, and 8.0 MySQL on other clouds Versions 5.6, 5.7, and 8.0
  		GaussDB(for MySQL) Compatible with MySQL 8.0

• DDM Serving as the Source in DR

  Table 27 Database information

  Service DB Engine	Service DB Type and Version	DR DB Type and Version
  DDM	DDM	DDM

• GaussDB(for MySQL) Serving as the Source in DR

  Service DB Engine	Service DB Type and Version	DR DB Type and Version
  GaussDB(for MySQL)	GaussDB(for MySQL) Compatible with MySQL 8.0	GaussDB(for MySQL) Compatible with MySQL 8.0

Workload Replay

A workload replay task simulates the service load of the source database on the destination database so you can evaluate the effectiveness and performance of the destination database. Table 28 lists the supported databases and versions. For more information about workload replay, see Workload Replay.

Self-managed databases (such as MySQL and MariaDB) refer to on-premises databases and databases created on an ECS. RDS for MySQL refers to the MySQL databases on Huawei Cloud RDS instances.

• The destination database version must be the same as or later than the source database version.