MySQL Fabric: High Availability using Python/Connector

1. MYSQL-Fabric: High Availability
using Connector/Python
Vishal Yadav
NEC Technologies India Pvt. Ltd.

2. • 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
2

3. Agenda
• MySQL-Fabric: Why? (Motivation)
• MySQL-Fabric: What? (Hello!!)
• Installation and Setup
• High Availability
• Conclusion
3

4. MySQL Fabric (Motivation)
4

5. 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
5

6. High-availability Solutions for MySQL
• DRBD and other active/passive, shared storage solution
• Standard Master-Slave Replication
• MySQL Cluster
• Galera / Percona Cluster
6

7. 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
7

8. MySQL Fabric (What?)
8

9. 9
• 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

10. MySQL Fabric HA Implementation
10

11. 11
Availability Group

12. MySQL Fabric: Extensible Architecture
12

13. Installation and Setup
13

14. Installation
14
• 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/

15. Setup
/etc/mysql/fabric.cfg
15

16. Setup (Cont…)
/etc/mysql/fabric.cfg
16

17. Example Read Only Code
17

18. Result
18

19. Conclusion
19

20. 20