MaxScale Overview

Jon Day

SkySQL

* © SkySQL Ab. Commercial in Confidence *

What is MaxScale?

• SkySQL's MaxScale is a sophisticated query routing layer.• Main benefits include:

– Availability – Allowing automated of routing of database operations to available servers, avoiding failed servers

– Scaling – Partitions the database load between a number of servers.– Filtering and logging capabilities– Authentication layer– Multiple protocol support

• Open source, being released initially as Alpha.

• Supports MySQL and MariaDB 5.5 and later– Supports Galera Cluster in addition to MySQL and MariaDB replication

– Supports MHA

* © SkySQL Ab. Commercial in Confidence *

MaxScale Objectives

● To be highly scalable● Lightweight with small footprint● Extendable● Minimum possible latency● Highly available● Provide authentication● Must be transparent to the application

MaxScale Core

● Event driven I/O Processor● Polling, event driven mechanism that is responsible for

dispatching events to the various modules that make up MaxScale

● Events in Maxscale = Network requests, such as:● Handling an incoming connection on a listener socket● Incoming data for a client connection● Data arriving on a connection from a backend data server● A socket error on one of the client or database

connections● A socket closure

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●

MaxScale is located between the application and database

MaxScale Installation

Download and Unpack

Starting MaxScale

Environment and Command Line

Validating Installation

UID/PWD: admin / skysql

Configuration (part 1)

Configuration (part 2)

Possible Future Functionality Ideas

● Database firewall● Auditing and Logging● HA for non MySQL and MariaDB databases● Connection load balancing with MariaDB 10

and Spider● Statement based load balancing

For more information

• Github: https://github.com/skysql/MaxScale – Source code and documentation

• Visit http://www.skysql.com for more information– http://www.skysql.com/blogs/ivan-zoratti/close-encounter-maxscale– Conf guide: http://www.skysql.com/node/1939– Diagnostics guide: http://www.skysql.com/node/1940

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