Intro to MySQLBy Alkin Tezuysal

Engineering Manager at Blackbird

@ask_dba

MySQL Architecture Overview• What is a Database?• What is MySQL?• MySQL History and Background• MySQL Architecture• MySQL Features (Pros-Cons)• MySQL Best Features• MySQL Replication Types• MySQL Use Cases• MySQL Replication• Load Balancing Basics

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What is a Relational Database?

• Accessible and Relational • Data Management• Organised Data Store• Systematic Data Architecture• Security Enabled• Tuneable Performance• Ability to utilise Operating System and its resources at kernel level system

software.

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What is MySQL?

• Popular software in open source world with GNU license• Easy to manage , easy to use features• Multi platform support• Adoptable to popular software languages such as PHP and Java• De-facto standard for web and e-commerce applications and unbeatable

choice for startups

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MySQL Version History

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MySQL Architecture

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MySQL Features - Pros

• Locking and Concurrency• Read/Write Locks• Lock Granularity (Table,Page,Row level locks)• Transactions• ACID Compliance (Atomicity, Consistency, Isolation, Durability)• Multiple and Pluggable engine types• Advanced Indexing• Slow Query Log• Optimizer Decision (Cost Based) and Explain Plan

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MySQL Features - Cons

• Tablespace management• Role access management• Immature Stored Procedures and Triggers• Advanced Partitioning• Advanced Views• Lack of Parallelism • Struggle with Large and Critical Data• Limited Backup and Recovery options for VLDB• Some other features in 5.6, 5.7 …

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MySQL Best Features

• Free, Almost Free, Lowest Total Cost of Ownership, Open Source• Easy setup and low profile replication features• Scalability and Flexibility • High Performance• High Availability• Robust Transactional Support• Works with very limited resources• Platform availability

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MySQL Replication Types

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MySQL Replication - How it works?

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MySQL Replication Use Cases

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Load Balancing Basics

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References:

• High Performance MySQL 4th Edition Optimization, Backups, Replication and Load Balancing, by Jeremy Zawodny and Derek Balling, ISBN: 0596-003064, O’Reilly Media, 2004.)

• http://dev.mysql.com

• http://www.oracle.com - MySQL Replication & Scalability - Oracle

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