MYSQL 5.5 highlights and MySQL Cluster 7.1

MySQL 5.5 Highlights - It's a lot faster!

• InnoDB
• Multiple Buffer Pool Instances
• Multiple Rollback Segments
• Extended change buffering and purge scheduling
• Improved Log Sys and Flush List mutex
• Improved locking
• Improved statistics on InnoDB mutexes, rw-locks, threads and I/O operations.
• Improved performance/scale with Win32, 64
• Scales to 32 cores 
• Semi-synchronoous replication
• Performance Schema
• SIGNAL/RESIGNAL (finally!)
• New Partitioning enhancements
• Configuring the heartbeat period
• More than 10x improvement in recovery times
• 200% performance gain for MySQL 5.5 over 5.1.40

MySQL Cluster 7.1 (GA)

• NDBINFO - improved real time status and usage statistics
• MYSQL Cluster Manager (CGE only)
• Sub-second failover and self healing recovery
• Parallel multi-master architecture
• Low latency - real time responsiveness

Additional links:

• http://blog.zawodny.com/2010/04/14/mysql-5-5-4-is-very-exicting/