High Availability Using MySQL Group Replication
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MySQL Group Replication is a recent MySQL plugin that brings together group communication techniques and database replication, providing both a high availability and a multi-master update everywhere replication solution. The PPT provide provide a broad overview of MySQL Group Replication plugin, what it can achieve and how it helps keep your MySQL databases highly available and your business up and running, without fail.
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High Availability Using MySQL Group Replication
- 1. WEBINAR on MySQL Group Replication 1st Feb 2017 between 5 -6 pm IST Delhi, India
- 2. 2 EXPERIENCE Systems of Engagement DIGITIZATION CUSTOMER Propelling the enterprise into the new world ENTERPRISE EFFICIENCY Systems of Records MODERNIZATION For a seamless tomorrow
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- 5. 28 March 2017 © OSSCube 2016. All Rights Reserved. 5 High Availability Group Replication Basics Group Replication installation, configuration and deployment Group Replication Troubleshooting
- 6. 28 March 2017 © OSSCube 2016. All Rights Reserved. 6 High Availability
- 7. 28 March 2017 © OSSCube 2016. All Rights Reserved. 7 High Availability • Principles of High Availability Elimination of single points of failure Reliable crossover. In multi threaded systems, the crossover point itself tends to become a single point of failure Detection of failures as they occur. If the two principles above are observed, then a user may never see a failure. But the maintenance activity must • Causes of loosing HA Failures of hosts , Databases / MySQL Operating system The hardware Maintenance activity that may otherwise cause downtime And many more ……
- 8. 28 March 2017 © OSSCube 2017. All Rights Reserved. 8 MySQL HA Solutions • HA is achieved via redundancy • The primary solutions supported by MySQL include: MySQL Native Replication MySQL Cluster MySQL with DRBD Galera Cluster MySQL Group Replication
- 9. 28 March 2017 © OSSCube 2017. All Rights Reserved. 9 Replication Technologies • Primary-Secondary Replication MySQL Asynchronous Replication MySQL Semi-synchronous Replication • Group Replication
- 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
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