MySQL InnoDB Cluster and MySQL Group Replication @HKOSC 2017

Group Replication is a plugin that provides multi-master replication for MySQL. It allows transactions to be executed on any node and replicated in a synchronous manner to all other nodes. The changes are delivered in total order to each node using GTIDs to ensure strong consistency across the cluster. Certification and application of the changes occurs asynchronously on each node after the writeset has been synchronously delivered.

This document provides an overview of MySQL high availability solutions including InnoDB Cluster and NDB Cluster. InnoDB Cluster allows setting up a highly available MySQL cluster with auto-sharding using Group Replication and MySQL Router for transparent application routing. NDB Cluster is a memory-optimized database for low-latency applications requiring high scalability and availability. MySQL Shell provides a unified interface for deploying, managing and monitoring these MySQL HA solutions.

MySQL Day Paris 2016 - State Of The Dolphin MySQL 8.0.0. DMR 1 MySQL Group Replication MySQL Cluster Oracle MySQL Cloud Service

This document provides an overview and best practices for MySQL replication. It begins with the basics of replication including the binary log, replication components and architecture. It then covers crash-safe slaves using replication metadata in system tables, online data verification with replication event checksums, tuning row-based replication, improving slave scalability with multi-threaded slaves, and automated failover using global transaction IDs. Hands-on examples are also provided to demonstrate setting up replication between a master and slave server.

MySQL Group Replication is a multi-master update everywhere replication plugin that provides high availability. It removes the need for handling server failover, provides fault tolerance, and automates group reconfiguration. Transactions are replicated to all group members, with conflicts detected and resolved using a first committer wins rule. Failed members automatically rejoin the group and synchronize with the others transparently. Group Replication uses the standard MySQL and InnoDB architecture, so existing users will feel familiar. It also supports features like auto-increment handling, GTIDs, secure connections, and a new single primary mode.

InnoDB Cluster is the built-in and open-source High Availability solution for MySQL 8. It consists of three components. The engine is MySQL Group Replication: the highly available cluster of database servers. This is where your data is safe and available, due to the replicated state machine, relying on the famous Paxos protocol. At the driver's seat is MySQL Shell: the DevOp's multilingual console. Here you can deploy, query, and arrange your cluster using either Javascript or Python, to your taste. Your application is welcomed to join the ride by connecting to MySQL Router: the intelligent, seamless interface to the cluster. We introduce all three components, with a special focus on Group Replication.

A brief introduction to MySQL (Group) Replication: what it is and some of the architecture. Then, a highlight of the most important new replication features in MySQL 8 (as of 8.0.3 RC).

Session presented at Oracle Developer Live - MySQL, 2020. Recording available at https://developer.oracle.com/developer-live/mysql/ Abstract: MySQL Shell is the new, advanced command-line client and editor for MySQL. It sends SQL statements to MySQL server, supports both the classic MySQL protocol and the newer X protocol, and provides scripting capabilities for JavaScript and Python. But there's more to MySQL Shell than meets the eye. It delivers a natural and powerful interface for all DevOps tasks related to MySQL by providing APIs for development and administration. This session covers MySQL Shell's core features, along with demonstrations of how to use the various APIs and how to extend MySQL Shell. We’ll address the regular interaction with databases, the built-in tools that make DBAs and developers’ lives easier, the easy and flawless set up of HA architectures, and the plugins and extensions framework.

MySQL Group Replication is a new plugin that implements an exciting extension to the proven and long standing MySQL Replication technology. It leverages advanced distributed protocols to ultimately provide to the end user features such as data replication, high availability, split brain protection and automation. It can be deployed in single-primary mode (default), in which primary fail-over is handled gracefully and automatically, or in multi-master mode, in which row level conflicts are detected and handled automatically as well. Regardless of the deployment mode, the end result is that this new addition provides a consistent and dependable replicated state machine, thus effectively enabling a fault-tolerant MySQL database service. At the end of the presentation, you will be able to understand how it works, the use cases it address, its limitations and also its roadmap ahead. Moreover, you will get to know how it fits in the overall high availability roadmap at MySQL.

The document provides an overview of MySQL Group Replication, which is a multi-master update anywhere replication plugin for MySQL that provides built-in automatic distributed recovery, conflict detection, and group membership. It allows for active/active update anywhere setups, automates group reconfiguration, and provides a highly available distributed database service. The document discusses the theory behind MySQL Group Replication, provides examples of how to use it, and concludes by discussing its benefits and future releases.

With the new release of MySQL 5.7 there is a lot of news on InnoDB. Here is the deep dive. Some intro to InnoDB and the news about 5.7 release.

This presentation goes through performance tuning basics in MySQL Cluster. It also covers the new parameters and status variables of MySQL Cluster 7.2 to determine issues with e.g disk data performance and query (join) performance.

MySQL 5.7 is GA! Here is the news about many of the new features that we can use in MySQL's latest version.

The document discusses Oracle's MySQL Cloud Service which provides MySQL as a database service on Oracle Public Cloud. Key features include automated backups, patching, monitoring, elastic scaling, high availability, security features from MySQL Enterprise Edition, and tools for data access, migration and restoration. The service runs MySQL 5.7 Enterprise Edition with an optimized configuration for the cloud environment.

Migration from Asynchronous Master/Slave pair to MySQL InnoDB Cluster using MySQL Enterprise Backup (MEB)

The document discusses asynchronous MySQL replication and its limitations. Asynchronous replication involves replicas streaming replication logs from a single master, which can lead to lag. Replica provisioning and data consistency must be manually handled. Complex replication topologies can be built but come with challenges around write safety and management overhead. Group replication aims to address some of these issues.

This document provides a summary of new features and enhancements in MySQL 5.6, including improved performance, scalability, availability, and usability. Key highlights include optimizations to the query optimizer, enhanced instrumentation via the performance schema, improvements to InnoDB and replication, and new utilities to help administer replication deployments. Oracle aims to release development milestone versions of MySQL frequently to get new features in users' hands early.

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Group Replication went Generally Available end of 2016, it introduces a 'synchronous' active:active multi-master eplication, in addition to asynchronous and semi-synchronous replication, the latter 2 being available in in MySQL for longtime. As with any new feature, and especially with introducing active:active multi-master replication, it takes a while before companies are adopting the software in production database environment. For example, even though MySQL 5.7 has been GA for more than a year, adoption is only starting to increase recently. We can, and should, expect the same from Group Replication. As with every release, bugs will be found, and with new features, best practises still need to formed out of practical experience. After giving a short introduction on what Group Replication is, I will cover my experience so far in evaluating Group Replication.

This document provides an overview of techniques for capturing and analyzing SQL queries in MySQL databases. It discusses built-in MySQL options like the slow query log, general query log, and binary log. It also covers other techniques like using MySQL Proxy, TCP/IP capture, Dtrace/SystemTap, and application management. Specific examples are provided for slow query log output, the general query log from WordPress, and the binary log and processlist.

This document discusses the goals, architecture, and on-disk format of the InnoDB storage engine for MySQL. InnoDB aims to provide transaction support, reliability, and scalability. Its architecture includes buffering, locking, recovery, and efficient I/O mechanisms. The on-disk format is designed for durability, performance through techniques like compression, and compatibility through file format management. Source code is organized into subdirectories corresponding to major subsystems.

Designing an extensible, flexible schema that supports user customization is a common requirement, but it's easy to paint yourself into a corner. Examples of extensible database requirements: - A database that allows users to declare new fields on demand. - Or an e-commerce catalog with many products, each with distinct attributes. - Or a content management platform that supports extensions for custom data. The solutions we use to meet these requirements is overly complex and the performance is terrible. How should we find the right balance between schema and schemaless database design? I'll briefly cover the disadvantages of Entity-Attribute-Value (EAV), a problematic design that's an example of the antipattern called the Inner-Platform Effect, That is, modeling an attribute-management system on top of the RDBMS architecture, which already provides attributes through columns, data types, and constraints. Then we'll discuss the pros and cons of alternative data modeling patterns, with respect to developer productivity, data integrity, storage efficiency and query performance, and ease of extensibility. - Class Table Inheritance - Serialized BLOB - Inverted Indexing Finally we'll show tools like pt-online-schema-change and new features of MySQL 5.6 that take the pain out of schema modifications.

Verisure migrated their data warehouse from using Tungsten Replicator to native multi-source replication in MySQL 5.7 to simplify operations. They loaded data from production shards into the new data warehouse setup using XtraBackup backups and improved replication capacity with MySQL's parallel replication features. Some issues were encountered with replication lag reporting and crashes during the upgrade but most were resolved. Monitoring and management tools also required updates to support the new multi-source replication configuration.

This document provides an overview and agenda for a presentation on MySQL best practices for DBAs and developers. The presentation covers essential MySQL configuration practices like server SQL mode and storage engines. It also discusses improving SQL, user security, schema optimizations, instrumentation, and monitoring. Specific topics include comment SQL, formatting SQL, future proofing SQL, and analyzing SQL. The document provides examples and recommendations for each topic.