High Availability Using MySQL Group Replication
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The document discusses a webinar on MySQL group replication held on February 1, 2017, covering various aspects of high availability (HA) and application modernization. It explains MySQL replication technologies, emphasizing the significance of MySQL group replication, its functionality, requirements, and the overarching principles of maintaining high availability. Key highlights include the automation of server fail-overs and conflict handling, which contribute to a fault-tolerant and highly available replicated database system.
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- 3. 3 © OSSCUBE 2017. All Rights Reserved.33/28/2017 Digital :Delivering an unparalleled customer experience Customer Commerce Operations Operational Efficiency Collaboration Insights & Visibility Superior Customer Experience Product Information Management Digital User Experience Digital Asset Management Analytics E-Commerce Enterprise Mobility Solutions WCM Omni Channel Integration CRM & Marketing Automation Customer Engagement Limited Data Insights High Costs & Risks (Low Process Visibility) Low Business Agility Inconsistent Customer Experience Legacy Systems New Age Technology Adoption Customer First CX System Flexibility & Scalability Seamless Cross Channel (Mobile, Offline, Omni Channel) Integration Maximize Global Sales Lower Costs
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- 10. 28 March 2017 © OSSCube 2017. All Rights Reserved. 10 MySQL Asynchronous Replication
- 11. 28 March 2017 © OSSCube 2017. All Rights Reserved. 11 MySQL Semi-synchronous Replication
- 12. 28 March 2017 © OSSCube 2017. All Rights Reserved. 12 MySQL Group Replication • What is MySQL Group Replication ? Update everywhere replication plugin for MySQL with built-in automatic distributed recovery, conflict handling, group membership and distributed agreement. • What does the MySQL Group Replication plugin do for the user Removes the need for handling server fail-over. Provides fault tolerance. Enables update everywhere setups. Automates group reconfiguration (handling of crashes, failures, re-connects). Provides a highly available replicated database. Automatic distributed coordination (protects against split-brain and message loss). The number of servers (n) needed to tolerate f failures is based on formula n = 2 x f + 1.
- 13. 28 March 2017 © OSSCube 2017. All Rights Reserved. 13 MySQL Group Replication
- 14. 28 March 2017 © OSSCube 2017. All Rights Reserved. 14 MySQL Group Replication
- 15. 28 March 2017 © OSSCube 2017. All Rights Reserved. 15 MySQL Group Replication Requirements • Infrastructure Data must be stored in the transactional storage engine InnoDB Every table must have a primary key IPv4 network Low latency, high bandwidth network Up to 9 servers in the group • Configuration Binary Log must be active Binary Log Format must be set to ROW Global Transaction Identifiers must be turned on Replication applier needs to have replication metadata repositories stored in system tables Transaction write set extraction must be enabled Servers need to log binary logs that are applied through the replication applier
- 16. 28 March 2017 © OSSCube 2017. All Rights Reserved. 16 Plugin Architecture • Built on top of proven technology! Shares much of MySQL Replication infrastructure thence does not feel alien! Multi-Master approach to replication. • Built on reusable components! Layered implementation approach. Interface driven development. Decoupled from the server core. The plugin registers as listener to server events. Reuses the capture procedure from regular replication. Provides further decoupling from the communication infrastructure.
- 17. 28 March 2017 © OSSCube 2017. All Rights Reserved. 17 Plugin Architecture
- 18. 28 March 2017 © OSSCube 2017. All Rights Reserved. 18 DEMO DEMO
- 19. 28 March 2017 © OSSCube 2017. All Rights Reserved. 19 Q&A Q&A
- 20. 28 March 2017 © OSSCube 2016. All Rights Reserved. 20
Editor's Notes
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