- Release Notes and Announcements
- Product Introduction
- Purchase Guide
- Getting Started
- Access Management
- Preparations
- Data Migration
- Databases Supported by Data Migration
- Cross-Account TencentDB Instance Migration
- Migrating to MySQL
- Migrating to MariaDB
- Migrating to TDSQL-C for MySQL
- Migrating to TDSQL MySQL
- Migrating to PostgreSQL
- Migrating to MongoDB
- Migrating to SQL Server
- Migrating to TencentDB for Redis
- Offline Migration of MySQL Data
- Advanced Migration Operations
- Task Management
- Data Sync
- Databases Supported by Data Sync
- Cross-Account TencentDB Instance Sync
- Synchronize to PostgreSQL
- Sync into Tencent Cloud
- Sync from Tencent Cloud
- Advanced Sync Operations
- Task Management
- Task Status Description
- Viewing Task
- Starting Task
- Retrying Task (MySQL)
- Verifying Task
- Stopping Task
- Pausing Task
- Resuming Task
- Resetting Task
- Deleting Task
- Changing Configuration
- Transition from Pay-as-You-Go to Monthly Subscription
- Terminating/Returning Instance
- Renewing Task
- Deisolating Task
- Deleting Instance
- Viewing Log
- Deleting Task
- Data Subscription (Kafka Edition)
- Databases Supported by Data Subscription
- Creating Data Subscription Task
- Data Consumption
- Creating Consumer Group
- Managing Consumer Group
- Consuming MySQL Data
- Consuming MongoDB Data
- Consuming TDSQL for PostgreSQL Data
- Consuming Subscribed Data with Kafka Client (Protobuf)
- Consuming Subscribed Data with Kafka Client (Avro)
- Consuming Subscribed Data with Kafka Client (JSON)
- Consuming Subscribed Data with Flink Client (Avro)
- Consuming Data with Flink
- Advanced Subscription Operations
- Task Management
- Data Migration (OldDTS)
- Data Subscription (OldDTS)
- Fix for Verification Failure
- Check Item Overview
- Check Items of MySQL/MariaDB/Percona/TDSQL-C for MySQL/TDSQL for MySQL
- MongoDB Check Items
- PostgreSQL Check Items
- TDSQL for PostgreSQL
- Redis/Tendis
- SQL Server
- Database Connection Check
- Source Database Existence Check
- Target Database Existence Check
- Peripheral Check
- Migration Network Check
- Version Check
- Source Instance Permission Check
- Account Conflict Check
- Partial Database Parameter Check
- Source Instance Parameter Check
- Source Instance Type (Master or Replica)
- Parameter Configuration Conflict Check
- Target Database Content Conflict Check
- Target Database Space Check
- Target Database Load Check
- Local Disk Space Check
- Binlog Parameter Check
- Oplog Check
- Foreign Key Dependency Check
- View Check
- Advanced Object Check
- Incremental Migration Precondition Check
- Extension/Plugin Compatibility Check
- Source Database Balancer Check
- Source Database Node Role Check
- ShardKey Check
- Warning Item Check
- DLL Ring Sync Check for Single Database/Table Object
- DLL Sync Conflict Check for Single Database/Table Object in the Same Target
- Level-2 Subpartitioned Table Check
- Primary Key Check
- DDL Check for Tables to Be Migrated
- System Database Conflict Check
- Table Structure Check for Source and Target Instances
- InnoDB Table Check
- Migration Object Dependency Check
- Constraint Check
- Cutover Description
- Monitoring and Alarms
- Ops Management
- DTS-DBbridge
- Best Practices
- API Documentation
- History
- Introduction
- API Category
- Making API Requests
- (NewDTS) Data Migration APIs
- DescribeMigrationJobs
- DescribeMigrationDetail
- CreateMigrationService
- ModifyMigrationJob
- CreateMigrateCheckJob
- DescribeMigrationCheckJob
- SkipCheckItem
- StartMigrateJob
- StopMigrateJob
- ResumeMigrateJob
- RecoverMigrateJob
- ModifyMigrateName
- ModifyMigrateJobSpec
- IsolateMigrateJob
- DestroyMigrateJob
- DescribeMigrateDBInstances
- CompleteMigrateJob
- PauseMigrateJob
- ContinueMigrateJob
- Data Sync APIs
- ModifySyncJobConfig
- CreateModifyCheckSyncJob
- DescribeModifyCheckSyncJobResult
- StartModifySyncJob
- DescribeSyncJobs
- CreateSyncJob
- ConfigureSyncJob
- CreateCheckSyncJob
- SkipSyncCheckItem
- DescribeCheckSyncJobResult
- StartSyncJob
- StopSyncJob
- ResumeSyncJob
- ResizeSyncJob
- RecoverSyncJob
- IsolateSyncJob
- DestroySyncJob
- PauseSyncJob
- ContinueSyncJob
- Data Consistency Check APIs
- Data Types
- Error Codes
- DTS API 2018-03-30
- SDK Documentation
- FAQs
- Error Handling (NewDTS)
- Error Handling (OldDTS)
- Service Agreement
- Release Notes and Announcements
- Product Introduction
- Purchase Guide
- Getting Started
- Access Management
- Preparations
- Data Migration
- Databases Supported by Data Migration
- Cross-Account TencentDB Instance Migration
- Migrating to MySQL
- Migrating to MariaDB
- Migrating to TDSQL-C for MySQL
- Migrating to TDSQL MySQL
- Migrating to PostgreSQL
- Migrating to MongoDB
- Migrating to SQL Server
- Migrating to TencentDB for Redis
- Offline Migration of MySQL Data
- Advanced Migration Operations
- Task Management
- Data Sync
- Databases Supported by Data Sync
- Cross-Account TencentDB Instance Sync
- Synchronize to PostgreSQL
- Sync into Tencent Cloud
- Sync from Tencent Cloud
- Advanced Sync Operations
- Task Management
- Task Status Description
- Viewing Task
- Starting Task
- Retrying Task (MySQL)
- Verifying Task
- Stopping Task
- Pausing Task
- Resuming Task
- Resetting Task
- Deleting Task
- Changing Configuration
- Transition from Pay-as-You-Go to Monthly Subscription
- Terminating/Returning Instance
- Renewing Task
- Deisolating Task
- Deleting Instance
- Viewing Log
- Deleting Task
- Data Subscription (Kafka Edition)
- Databases Supported by Data Subscription
- Creating Data Subscription Task
- Data Consumption
- Creating Consumer Group
- Managing Consumer Group
- Consuming MySQL Data
- Consuming MongoDB Data
- Consuming TDSQL for PostgreSQL Data
- Consuming Subscribed Data with Kafka Client (Protobuf)
- Consuming Subscribed Data with Kafka Client (Avro)
- Consuming Subscribed Data with Kafka Client (JSON)
- Consuming Subscribed Data with Flink Client (Avro)
- Consuming Data with Flink
- Advanced Subscription Operations
- Task Management
- Data Migration (OldDTS)
- Data Subscription (OldDTS)
- Fix for Verification Failure
- Check Item Overview
- Check Items of MySQL/MariaDB/Percona/TDSQL-C for MySQL/TDSQL for MySQL
- MongoDB Check Items
- PostgreSQL Check Items
- TDSQL for PostgreSQL
- Redis/Tendis
- SQL Server
- Database Connection Check
- Source Database Existence Check
- Target Database Existence Check
- Peripheral Check
- Migration Network Check
- Version Check
- Source Instance Permission Check
- Account Conflict Check
- Partial Database Parameter Check
- Source Instance Parameter Check
- Source Instance Type (Master or Replica)
- Parameter Configuration Conflict Check
- Target Database Content Conflict Check
- Target Database Space Check
- Target Database Load Check
- Local Disk Space Check
- Binlog Parameter Check
- Oplog Check
- Foreign Key Dependency Check
- View Check
- Advanced Object Check
- Incremental Migration Precondition Check
- Extension/Plugin Compatibility Check
- Source Database Balancer Check
- Source Database Node Role Check
- ShardKey Check
- Warning Item Check
- DLL Ring Sync Check for Single Database/Table Object
- DLL Sync Conflict Check for Single Database/Table Object in the Same Target
- Level-2 Subpartitioned Table Check
- Primary Key Check
- DDL Check for Tables to Be Migrated
- System Database Conflict Check
- Table Structure Check for Source and Target Instances
- InnoDB Table Check
- Migration Object Dependency Check
- Constraint Check
- Cutover Description
- Monitoring and Alarms
- Ops Management
- DTS-DBbridge
- Best Practices
- API Documentation
- History
- Introduction
- API Category
- Making API Requests
- (NewDTS) Data Migration APIs
- DescribeMigrationJobs
- DescribeMigrationDetail
- CreateMigrationService
- ModifyMigrationJob
- CreateMigrateCheckJob
- DescribeMigrationCheckJob
- SkipCheckItem
- StartMigrateJob
- StopMigrateJob
- ResumeMigrateJob
- RecoverMigrateJob
- ModifyMigrateName
- ModifyMigrateJobSpec
- IsolateMigrateJob
- DestroyMigrateJob
- DescribeMigrateDBInstances
- CompleteMigrateJob
- PauseMigrateJob
- ContinueMigrateJob
- Data Sync APIs
- ModifySyncJobConfig
- CreateModifyCheckSyncJob
- DescribeModifyCheckSyncJobResult
- StartModifySyncJob
- DescribeSyncJobs
- CreateSyncJob
- ConfigureSyncJob
- CreateCheckSyncJob
- SkipSyncCheckItem
- DescribeCheckSyncJobResult
- StartSyncJob
- StopSyncJob
- ResumeSyncJob
- ResizeSyncJob
- RecoverSyncJob
- IsolateSyncJob
- DestroySyncJob
- PauseSyncJob
- ContinueSyncJob
- Data Consistency Check APIs
- Data Types
- Error Codes
- DTS API 2018-03-30
- SDK Documentation
- FAQs
- Error Handling (NewDTS)
- Error Handling (OldDTS)
- Service Agreement
Check Details
MySQL/TDSQL-C for MySQL/TDSQL for MySQL/PostgreSQL check requirements
The storage space of the target database must be at least 1.2 times the size of the tables to be migrated in the source database.
Full data migration will execute INSERT operations concurrently, generating data fragments in some tables of the target database. Therefore, after full migration is completed, the size of the tables in the target database may be larger than that in the source instance.
MongoDB check requirements
The storage space of the target database must be at least 1.3 times the size of the tables to be migrated in the source database.
Redis check requirements
The storage space of the target database must be at least 1.5 times that of the source database.
Troubleshooting
- Delete some data from the target database to free up sufficient space.
- Upgrade the storage specification of the target database as instructed in Adjusting Database Instance Specification to use an instance with a larger capacity for migration.
Yes
No
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