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Will Data of DRS Tasks Be Lost After a Primary/Standby Switchover Occurs on the Source MySQL Database?
Updated on 2022-12-30 GMT+08:00
Will Data of DRS Tasks Be Lost After a Primary/Standby Switchover Occurs on the Source MySQL Database?
If GTID is enabled for the source MySQL database, DRS records the binlog position information when a primary/standby switchover occurs. After the primary/standby switchover, DRS resumes data transfer from the last interrupted position to prevent data loss.
You can modify the database configuration file to enable GTID for the source MySQL database. The modification takes effect after the database is restarted.
The reference commands are as follows:
gtid_mode = on log_slave_updates = true enforce_gtid_consistency = on
Parent topic: General Operations
General Operations FAQs
- What Can I Do When Information Overlaps on the DRS Console?
- Is the Destination Instance Set to Read-only or Read/Write?
- How Do I Set Global binlog_format=ROW to Take Effect Immediately?
- How Do I Set binlog_row_image=FULL to Take Effect Immediately?
- How Do I Change the Destination Database Password to Meet the Password Policy?
- How Do I Configure the Shard Key for a MongoDB Sharded Cluster?
- Does Bandwidth Expansion Affect the Running DRS Tasks?
- Why Data in MariaDB and SysDB Cannot Be Migrated or Synchronized?
- Constraints and Operation Suggestions on Many-to-One Scenario
- Constraints and Operation Suggestions on One-to-Many Scenario
- Where Can I View DRS Operation Logs?
- Why Is the Language of the Message Sent by DRS Inconsistent with That on the Page?
- Why Is a DRS Task Automatically Stopped?
- How Can I Export a DRS Task List?
- Can a Completed Task Be Restarted?
- What Are the Differences Between Resetting a Task and Recreating a Task?
- Does DRS Support Backward Migration/Synchronization?
- Why Cannot I Select an Existing SMN Topic?
- Can I Change an SMN Topic After a Task Is Created?
- How Do I Set the Number of Source Shards and Source Database Information When DDM Is the Source Database?
- Will Data of DRS Tasks Be Lost After a Primary/Standby Switchover Occurs on the Source MySQL Database?
- What Are the Differences Between All, Tables, and Databases During DRS Object Selection?
- What Do I Do After Changing the Password of the Source or Destination Database?
- How Do I Configure an SMN Topic Policy to Allow DRS to Publish Messages?
- What Can I Do If a DRS Task Times Out Due to Too Many Tables?
- Can I Change the Source or Destination Database After a DRS Task Is Created?
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