Monitoring Query Memory Consumption in MySQL with Performance Schema
DBA

Troubleshooting MySQL Group Replication Performance

Troubleshooting MySQL Group Replication Performance Bottlenecks: A Technical Deep Dive MySQL Group Replication (GR) provides native high availability and fault tolerance through synchronous multi-master or single-primary replication. However, its distributed nature introduces unique performance challenges. […]
Datatbase Systems

How PostgreSQL and MySQL Handle No-Op Updates

How PostgreSQL and MySQL Handle No-Op Updates: A Performance Deep Dive Introduction No-op updates in SQL—where an UPDATE statement sets columns to their existing values—are rare in well-designed applications. Yet legacy code, third-party plugins, or […]
Datatbase Systems

MySQL Transaction Isolation Levels: A Technical Deep Dive

MySQL Transaction Isolation Levels: A Technical Deep Dive Transaction isolation is a cornerstone of database reliability, governing how concurrent transactions interact with shared data. MySQL’s implementation of isolation levels provides granular control over the visibility […]