Data Transfer Service
- Release Notes and Announcements
- Announcements
- Product Introduction
- Specification Description
- Preparations
- Network Preparation
- Interworking Between local IDC and Tencent Cloud
- Adding DTS IP Addresses to the Allowlist of the Corresponding Databases
- DTS Service Permission Preparation
- Data Migration
- Migration to MySQL Series
- Migrating to MySQL
- Migrating to MariaDB
- Migrating to TDSQL-C for MySQL
- Migrating to TDSQL MySQL
- Migrating to TDSQL TDStore
- Advanced Operations for MySQL Series Migration
- Processing for MySQL Series Pre-Check Failure
- Migrating to PostgreSQL
- Processing for PostgreSQL Series Pre-Check Failure
- Migrating to MongoDB
- Migration from MongoDB to MongoDB
- Fix for Verification Failure
- MongoDB Data Consistency Verification
- Migrating to SQL Server
- Migration from SQL Server to TencentDB for SQL Server
- Pre-Validation Failure Handling
- Migrating to TencentDB for Redis
- Migration from Redis to Redis
- Fix for Verification Failure
- Migrating to KeeWiDB
- Migration from Redis to KeeWiDB
- Task Management
- Data Sync
- Sync to MySQL series
- Sync to MySQL
- Sync to MariaDB
- Sync to TDSQL-C for MySQL
- Sync to TDSQL for MySQL
- Sync from TDSQL for MySQL to TDSQL for MySQL
- Sync to TDSQL TDStore
- MySQL Series Advanced Sync Operations
- MySQL series Pre Validation Failed Processing
- Synchronize to PostgreSQL
- PostgreSQL Pre Validation does not Pass Processing
- Synchronize to Kafka
- MySQL/MariaDB/Percona/TDSQL-C MySQL Sync to Kafka
- TDSQL MySQL Sync to Kafka
- Task Management
- Data Subscription (Kafka Edition)
- MySQL series Data Subscription
- Consuming MySQL Data
- Advanced Subscription Operations
- Fix for Verification Failure
- Data Subscription for TDSQL PostgreSQL
- Fix for Verification Failure
- MongoDB Data Subscription
- Fix for Verification Failure
- Task Management
- Consumption Management
- Fix for Verification Failure
- Monitoring and Alarms
- Configuring Metric Alarms and Event Alarms via the Console
- Practical Tutorial
- FAQs
- Error Handling
- API Documentation
- Making API Requests
- (NewDTS) Data Migration APIs
- Data Sync APIs
- Data Consistency Check APIs
- (NewDTS) Data Subscription APIs
- DTS API 2018-03-30
- Data Subscription APIs
- Making API Requests
- DTS APIs
- Service Agreement
DocumentationData Transfer ServiceData MigrationMigrating to TencentDB for RedisMigration from Redis to RedisKey Prefix Filtering
Key Prefix Filtering
Last updated: 2024-11-26 11:24:29
Overview
DTS supports configuring prefix filtering rules for multi-key commands in Redis data migration linkages, making it easier for users to manage keys in their databases.
Key Prefix Filtering Rules
Supports configuring single or multiple key prefix matching rules, with multiple prefixes separated by the Enter key.
When migration rules and filtering rules are used together, filtering rules take precedence over migration rules.
Key Prefix Filtering Rule Examples
1. MSET/DEL/UNLINK commands use exact matching rules.
Migration rule: If a multi-key command on the source matches a single key, only that key is migrated to the target; other keys are not migrated.
Filtering rule: If a multi-key command on the source matches a single key, only that key is filtered and not migrated to the target; other keys will still be migrated.
Prefix Type | Source Database Key Command | Prefix Set in DTS | Result on Target |
Migration key prefix | MSET dtsnew "111" abcd "222" | dts | MSET dtsnew "111" |
Filtering key prefix | MSET redisnew "111" efgh "222" | redis | MSET efgh "222" |
2. Commands other than MSET/DEL/UNLINK.
Migration rule: If a multi-key command on the source matches any migration prefix, the entire command will be migrated to the target.
Filtering rule: A multi-key command on the source will only be filtered if all keys match the filter prefix. If only one key matches, the command will not be filtered and will still migrate to the target.
Prefix Type | Source Database Key Command | Prefix Set in DTS | Result on Target |
Migration key prefix | SUNION dtsnew abcd | dts | SUNION dtsnew abcd |
Filtering key prefix | SUNION redisnew efgh | redis | SUNION redisnew efgh |
Filtering key prefix | SUNION redisnew efgh | redis efg | Unsynced |
Directions
To configure a Redis migration task, go to the Set migration options and select migration objects page, check Enable Key Filter, set the filtering rules, and proceed with the subsequent configuration steps.
Was this page helpful?
You can also Contact Sales or Submit a Ticket for help.
Yes
No