What should be noted when performing incremental data recovery in MySQL?
When performing incremental data recovery in MySQL, the following points should be taken into consideration:
1. Backup Logs: Before starting an incremental recovery, a complete set of backup logs is necessary. These logs consist of binary logs and transaction logs, which record all modifications in the database such as insertions, updates, and deletions.
2. Backup log retention period: When performing an incremental restore, it is important to ensure that the backup log files are continuous and cover all operations within the time range to be restored. Therefore, it is necessary to ensure that the retention period of the backup logs is long enough for recovery operations.
Before performing incremental recovery, it is important to ensure that the database is in the correct state. This involves shutting down the running MySQL service and verifying that the database files are not damaged or missing.
Recovery Strategy: When performing incremental recovery, it is necessary to select the appropriate recovery strategy. Common recovery strategies include point-in-time recovery and event-based recovery. Choose the recovery strategy based on the actual situation and follow the correct steps to execute the recovery operation.
5. Recovery testing: It is recommended to perform a test recovery in a test environment before conducting incremental recovery. This can help verify that the recovery process is correct and ensure data integrity and consistency.
6. Monitoring the recovery process: It is important to closely monitor the recovery process and the performance and status of the database during incremental recovery. If any errors or abnormalities are detected, the recovery operation should be immediately stopped for investigation and repair.
In conclusion, when performing incremental data recovery in MySQL, it is important to ensure that the backup logs are complete and continuous, the database is in the correct state, the appropriate recovery strategy is selected, and the recovery process is tested and monitored. This can maximize data integrity and consistency.
