MYSQL-Fabric: High Availability using Connector/Python

Vishal YadavNEC Technologies India Pvt. Ltd.

• Python and OpenStack Evangelist @ NEC Technologies• Other Talks and Submissions

OpenStack India Meetup, New Delhi 2015 Rally: OpenStack Benchmarking (

http://www.slideshare.net/vishalcdac/rally-openstackbenchmarking)

Python FOSDEM-2015 and PyCON India 2014 Python Taskflow https://

speakerdeck.com/vishalcdac07/python-statemanagement-taskflow

• Contact Me: G-Mail: vishalcdac07@gmail.com Twitter: @vishalcdac07

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Agenda

• MySQL-Fabric: Why? (Motivation)• MySQL-Fabric: What? (Hello!!)• Installation and Setup• High Availability• Conclusion

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MySQL Fabric (Motivation)

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Building Reliable Systems

• High Availability is an integral part of designing a reliable system

• Reason for system downtime System Failure

Hardware faults Software bugs

Disasters Maintenance User errors

• High Availability Concept Monitoring Redundancy Activate replacement Distribute load

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High-availability Solutions for MySQL

• DRBD and other active/passive, shared storage solution

• Standard Master-Slave Replication

• MySQL Cluster

• Galera / Percona Cluster

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Problem of These HA Solutions

• Passive nodes are waste of resources

• Some of them are not shared-nothing

• No integrated sharding (write-scaling)

• Complex to setup and administer

• Require application re-writes

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MySQL Fabric (What?)

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• MySQL Fabric is an extensible framework for managing farms of MySQL Servers

• Provides 2 primary features: High Availability (HA) Scaling out (Sharding)

• These features can be used in isolation or in combination• Provides server provisioning using cloud frameworks such

as OpenStack

MySQL Fabric HA Implementation

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Availability Group

MySQL Fabric: Extensible Architecture

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Installation and Setup

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Installation

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• MySQL Servers• Requires MySQL 5.6• For Ubuntu > 14.04

#apt-get install mysql-client-core-5.6 mysql-server-5.6• For other distribution use mysql community repo:

http://dev.mysql.com/downloads/repo/ #yum install mysql-community-server

• Python Connector• http://dev.mysql.com/downloads/connector/python/

• MySQL Fabric• Part of MySQL utilities• http://dev.mysql.com/downloads/utilities/

Setup

/etc/mysql/fabric.cfg

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Setup (Cont…)

/etc/mysql/fabric.cfg

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Example Read Only Code

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Result

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Conclusion

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