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What's new in MySQL 5.5?
Lenz Grimmer
MySQL Community Relations Specialist
MySQL 5.5 Highlights

• InnoDB becomes the default
• Improved Performance & Scalability
• Improved Availability
• Improved Manageability & Usability
• Improved Instrumentation & Diagnostics
InnoDB 1.1 as Default Storage Engine

• ACID Transactions, Foreign Keys, Crash
  Recovery
• Plugin replaces built-in version
• Newly created tables use InnoDB by default
• MyISAM and other Storage Engines still
  available
• Many performance/scalability improvements
• Better instrumentation & diagnostics
InnoDB Performance improvements

• Multiple/Split Buffer Pool Instances
• Multiple Rollback Segments
• Improved recovery performance
• Native async I/O on Linux
• Extended Change Buffering (with delete
  buffering, purge buffering)
• Control of overall I/O capacity
• Restored group commit
InnoDB Scalability Improvements

• Improved Log Sys mutex
• Separate Flush List mutex
• Improved Purge Scheduling
• Improved default thread concurrency
• Control of background I/O threads
• Control of using the OS memory allocator
• Faster locking algorithms
InnoDB Instrumentation/Diagnostics

• InnoDB stats in PERFORMANCE_SCHEMA
• More extensive SHOW ENGINE INNODB
  STATUS
• New INFORMATION_SCHEMA tables
Improved Availability

• Semi-synchronous Replication
• Replication Heartbeat
• Replication Slave fsync() options
• Automatic Relay Log Recovery
• Per-master event filtering
• Replication Slave Side Type Conversions
• Individual Log Flushing
• SHOW RELAYLOG EVENTS
Improved Manageability & Usability

• PERFORMANCE_SCHEMA
• SIGNAL/RESIGNAL
• Pluggable authentication framework
• More Partitioning Options
Give it a spin!

• Download MySQL 5.5 from the usual place:
  http://dev.mysql.com/downloads/mysql/
• Send us feedback and bug reports:
  http://bugs.mysql.com/
• Questions? Use the Forums or Mailing Lists:
  http://forums.mysql.com http://lists.mysql.com
• Blog about your experiences:
  http://planet.mysql.com
Discussion / Q & A
Thank you!
Lenz Grimmer <lenz.grimmer@oracle.com>
          http://www.lenzg.net/
                 @lenzgr
What's new in MySQL 5.5? FOSDEM 2011

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What's new in MySQL 5.5? FOSDEM 2011

  • 1.
  • 2. <Insert Picture Here> What's new in MySQL 5.5? Lenz Grimmer MySQL Community Relations Specialist
  • 3. MySQL 5.5 Highlights • InnoDB becomes the default • Improved Performance & Scalability • Improved Availability • Improved Manageability & Usability • Improved Instrumentation & Diagnostics
  • 4. InnoDB 1.1 as Default Storage Engine • ACID Transactions, Foreign Keys, Crash Recovery • Plugin replaces built-in version • Newly created tables use InnoDB by default • MyISAM and other Storage Engines still available • Many performance/scalability improvements • Better instrumentation & diagnostics
  • 5. InnoDB Performance improvements • Multiple/Split Buffer Pool Instances • Multiple Rollback Segments • Improved recovery performance • Native async I/O on Linux • Extended Change Buffering (with delete buffering, purge buffering) • Control of overall I/O capacity • Restored group commit
  • 6. InnoDB Scalability Improvements • Improved Log Sys mutex • Separate Flush List mutex • Improved Purge Scheduling • Improved default thread concurrency • Control of background I/O threads • Control of using the OS memory allocator • Faster locking algorithms
  • 7. InnoDB Instrumentation/Diagnostics • InnoDB stats in PERFORMANCE_SCHEMA • More extensive SHOW ENGINE INNODB STATUS • New INFORMATION_SCHEMA tables
  • 8. Improved Availability • Semi-synchronous Replication • Replication Heartbeat • Replication Slave fsync() options • Automatic Relay Log Recovery • Per-master event filtering • Replication Slave Side Type Conversions • Individual Log Flushing • SHOW RELAYLOG EVENTS
  • 9. Improved Manageability & Usability • PERFORMANCE_SCHEMA • SIGNAL/RESIGNAL • Pluggable authentication framework • More Partitioning Options
  • 10. Give it a spin! • Download MySQL 5.5 from the usual place: http://dev.mysql.com/downloads/mysql/ • Send us feedback and bug reports: http://bugs.mysql.com/ • Questions? Use the Forums or Mailing Lists: http://forums.mysql.com http://lists.mysql.com • Blog about your experiences: http://planet.mysql.com
  • 12. Thank you! Lenz Grimmer <lenz.grimmer@oracle.com> http://www.lenzg.net/ @lenzgr