Announcements and Updates

• Release notes
• Service notices

Introduction

• What is Data Transmission Service?
• Supported sources and targets
• Service architecture
• Benefits
• Use cases
• Limits
• Terms

Billing

• Billing overview
• Expiration policies for subscriptions
• Overdue payments for pay-as-you-go
• Renew a subscription instance
• Switch from pay-as-you-go to subscription

Quick Start

• Create a data integration task
• Create a data migration task
• Create a data synchronization task
• Create a change tracking task

Network Setup

• Set up a network environment for replication
• Whitelist DTS IP ranges for your user-created database
• Connect your on-premises networks to Alibaba Cloud
• Connect a non-Alibaba Cloud database to Alibaba Cloud Database Gateway
• Connect your on-premises networks to Alibaba Cloud over an IPsec-VPN tunnel
• Connect an on-premises database to DTS by using CEN

RAM-based Access Control

• Authorize DTS to access Alibaba Cloud resources
• Use a system policy to authorize a RAM user to manage DTS instances
• Use a custom policy to authorize a RAM user to manage DTS instances
• Authorize a RAM user to use the DTS SDK
• Configure RAM authorization for cross-account data migration and synchronization
• Configure RAM authorization for data migration or synchronization from a self-managed database in a VPC across different Alibaba Cloud accounts

Replication Modes

• Data migration mode
• Data integration mode
• Data synchronization mode
• Change tracking mode

Performance

• Data migration performance data
• Data synchronization performance data

DTS Dedicated Cluster

• What is a DTS dedicated cluster?
• Billing of DTS dedicated clusters
• Performance specifications of tasks that run in a DTS dedicated cluster
• Configure tasks in a DTS dedicated cluster
• Manage a DTS dedicated cluster
• View monitoring information of a DTS dedicated cluster
• View DU information of a DTS dedicated cluster
• Configure alerts for a DTS dedicated cluster

Data Synchronization (New Console)

• Overview of data synchronization scenarios
• Synchronize data from a MySQL database
• Synchronize data from a PolarDB for MySQL cluster
• Synchronize data from a PolarDB for PostgreSQL cluster
• Synchronize data from a PolarDB for Oracle cluster
• Synchronize data from a DRDS instance
• Synchronize data from a PolarDB-X 2.0 instance
• Synchronize data from an Oracle database
• Synchronize data from a PostgreSQL database
• Synchronize data from an SQL Server database
• Synchronize data from a MongoDB database
• Synchronize data from a Db2 for LUW database
• Synchronize data from a DMS logical database
• Synchronize data from a Redis database

Data Migration (New Console)

• Overview of data migration scenarios
• Migrate data from a MySQL database
• Migrate data from an ApsaraDB RDS for MariaDB instance
• Migrate data from a PolarDB for MySQL cluster
• Migrate data from a PolarDB for PostgreSQL cluster
• Migrate data from a PolarDB for Oracle cluster
• Migrate data from a PolarDB-X instance
• Migrate data from an Oracle database
• Migrate data from a PostgreSQL database
• Migrate data from an SQL Server database
• Migrate data from a MongoDB database
• Migrate data from a Db2 for LUW database
• Migrate data from a Teradata database
• Migrate data from an HBase database
• Migrate data from a Redis database
• Migrate data from an ApsaraDB RDS for PPAS instance
• Migrate data between ApsaraDB RDS instances of different Alibaba Cloud accounts

Change Tracking (New Console)

• Overview of change tracking scenarios
• Track data changes from an ApsaraDB RDS for MySQL instance
• Track data changes from an ApsaraDB RDS for PostgreSQL instance
• Track data changes from a PolarDB for MySQL cluster
• Track data changes from a PolarDB-X 1.0 instance
• Track data changes from a PolarDB for Oracle cluster
• Track data changes from a self-managed Oracle database
• Track data changes from a PolarDB-X instance
• Track data changes from a DMS logical database
• Track data changes from a PolarDB for PostgreSQL cluster
• Consume tracked data

Data Verification (New Console)

• What is data verification?
• Enable data verification
• View data verification details

Instance Management (New Console)

• Lifecycle management
• View task logs
• Manage objects
• View task progress
• Monitor task performance
• Configure monitoring and alerting
• Synchronize or migrate data across Alibaba Cloud accounts
• Modify the parameters of a DTS instance
• Enable the multi-table merging feature
• Upgrade the specifications of a DTS instance for free
• Upgrade a change tracking instance from the previous version to the new version
• Enable throttling for data migration
• View hot data
• Switch the direction of a two-way synchronization instance
• Configure parameters if the destination instance of a DTS task is a Message Queue for Apache Kafka instance
• Apply for permissions to synchronize data across borders

Data Synchronization

• Synchronization topologies
• Data type mappings for schema synchronization
• Precautions and limits
• Prepare the database accounts for data synchronization
• Synchronization task management
• Synchronize data between MySQL databases
• Synchronize data from a MySQL database to a different type of database
• Synchronize data to or from an Apsara PolarDB for MySQL cluster
• Synchronize data to or from a PolarDB for Oracle cluster
• Synchronize data to or from a PolarDB-X instance
• Synchronize data between Redis databases
• Synchronize data from an ApsaraDB RDS for SQL Server instance
• Synchronize data between PostgreSQL databases
• Synchronize data from an Oracle database
• Synchronize data from a TiDB database

Data Migration

• Data type mappings between heterogeneous databases
• Precautions and limits
• Prepare the database accounts for data migration
• Migration task management
• Precheck and troubleshooting
• Migrate data from a self-managed database to Alibaba Cloud
• Migrate data from a third-party cloud to Alibaba Cloud
• Migrate data between instances of the same Alibaba Cloud account
• Migrate data between instances of different Alibaba Cloud accounts
• Migrate data from Alibaba Cloud to a self-managed database
• Migrate data between self-managed databases

Change Tracking

• Prepare the source database account for change tracking
• Configure and manage change tracking tasks
• Consume tracked data

Data Integration

• Configure a data integration task between ApsaraDB RDS for MySQL instances
• Scheduling policies of data integration
• Manage a data integration task
• Modify the settings of a scheduling policy
• View historical tasks

Instance Management

• Upgrade a DTS instance
• Upgrade synchronization topology from one-way to two-way
• Change the password of a database account
• Query the operations logs of instances
• View task logs
• Release DTS instances
• Configure alert rules for DTS tasks in the CloudMonitor console
• Tag management

ETL Task Management

• What is ETL?
• Configure an ETL task in DAG mode
• Configure an ETL task in Flink SQL mode
• Configure ETL in a data migration or data synchronization task
• Best practices

Heterogeneous Database Migration(ADAM)

• ADAM overview
• Logon accounts
• Database evaluation
• Database transformation and migration
• Application evaluation and transformation
• SQL mapping
• Database cutover
• Manage a database archive
• Schema revision
• Migration lab
• Convert SQL scripts
• FAQ

API Reference

• RAM authorization
• Common parameters
• Request syntax
• Supported regions
• DTS API (new and recommended)
• DTS API

SDK Reference

• Use DTS SDK for Java
• Download SDKs

Best Practices

• Switch workloads to the destination database
• Use triggers and functions to implement incremental DDL migration for PostgreSQL databases
• Disable slow query log to improve migration performance
• Change the character set of an ApsaraDB RDS for MySQL instance
• Configure a data synchronization task for a source database that contains a trigger
• Migrate data between databases that have different names
• Disaster tolerance of data subscription SDK
• Set a cache update policy by using the change tracking feature

FAQ

Common Errors and Troubleshooting

Troubleshooting

Troubleshooting

• What do I do if an error is reported for a table in a data synchronization instance?
• What do I do if an error is reported when I connect a database instance to DTS over VPN?
• What do I do if an error is reported when I connect a database instance to DTS over CEN?
• Common error codes and troubleshooting methods
• Common error codes that may be returned when you configure DTS tasks and corresponding solutions
• What do I do if the "DTS-30019: Can not find column" error is displayed?
• What can I do if full data migration stops or slows down?
• What do I do if an incremental migration or synchronization task of DTS is delayed?
• What can I do if DTS fails to obtain the schemas of the source database when I configure a task?
• What can I do if the message "Instances with internal IP addresses are not allowed" appears when I test connectivity?
• What can I do if an error message indicating insufficient resources appears when I configure a task?
• What do I do if a connection failure occurs when I configure a task?
• What can I do if data loss occurs in the destination database due to inconsistent case sensitivity of character sets in the source and destination databases?
• What can I do if data loss occurs in the destination database due to online DDL operations performed in a table merging task?
• What can I do if data loss occurs after I perform two-way synchronization among three instances?
• Precheck failed

Service Terms

• Service Level Agreement