Release notes

• Release notes

[Notice] Data subscription mode discontinued as of March 31, 2020

• [Notice] Data subscription mode discontinued as of March 31, 2020

[Notice] Response parameters of DescribeSynchronizationJobStatus changed as of May 11, 2020

• [Notice] Response parameters of DescribeSynchronizationJobStatus changed as of May 11, 2020

Introduction

• What is Data Transmission Service?
• Supported sources and targets
• How it works
• Benefits
• Use cases
• Limits
• Glossary
• FAQ

Billing

• Billing methods
• 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

Replication Modes

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

Performance

• Data migration performance data
• Data synchronization performance data

Instance Management

• Upgrade instance specification
• 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 pay-as-you-go instances
• Set alert rules for DTS tasks in the Cloud Monitor console

Data Migration

• Overview of data migration scenarios
• Supported databases and migration types
• Data type mappings between heterogeneous databases
• Migration task management
• Precheck and troubleshooting
• Migration from a user-created database to Alibaba Cloud
• Migration from a third-party cloud to Alibaba Cloud
• Migrate data between instances under the same Alibaba Cloud account
• Migrate data across Alibaba Cloud accounts
• Migration from Alibaba Cloud to a user-created database
• Migrate data between user-created databases

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

Data Synchronization

• Overview of data synchronization scenarios
• Database types, initial synchronization types, and synchronization topologies
• Synchronization topologies
• Data type mappings for initial schema synchronization
• Synchronization task management
• Synchronize data between MySQL databases
• Synchronize data from MySQL databases to other databases
• Synchronize data to or from an Apsara PolarDB cluster
• Synchronize data to or from a DRDS instance
• Synchronize data between PostgreSQL databases
• Synchronize data between Redis databases

Change Tracking

• Overview of change tracking scenarios
• Source databases and data changes
• Change tracking (new)
• Change tracking (previous)

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 user-created database in a VPC across different Alibaba Cloud accounts

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

Service Terms

Troubleshooting

• Troubleshooting