Answer
Use checksums, pt-table-sync, or resync using GTID. In severe cases, recreate the replica.
Quick Answer
Inconsistent replica data: prevent by using row-based replication and read_only=ON on replicas. Detect with pt-table-checksum (Percona Toolkit) - compares checksums of tables across primary and replicas. Fix inconsistencies with pt-table-sync. Rebuild from scratch: stop replica, take fresh backup from primary, restore and start replication from the backup's binlog position.
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SugharaIQ Editorial Team
Verified Answer
This answer has been peer-reviewed by industry experts holding senior engineering roles to ensure technical accuracy and relevance for modern interview standards.
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Source: SugharaIQ