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Mastering RedisA Primer
Data Masters
Special Thanks To…
Planet Linux Caffehttp://planetlinuxcaffe.com
Short bio about me… Andrew Simkovsky 15 years working with database technology Worked across many industries
Why Data Masters? Used to be a certification instructor – I miss
it! Sharing knowledge Fostering a community
Redis - Concept
What it is “NoSQL” Key-value store In-memory
What it’s not Definitely not “relational” Denormalization is your friend
Redis - Uses
Caching session data
Processing data at high speeds
Real-time data feeds
Where Do I Get It?
www.redis.io
Types of Data
Types of Data
Keys
Strings
Hashes
Lists
Sets
Sorted Sets
Queue
Types of Data - Keys
Identifier – to find your data
Converted to physical address in memory
Key can be any string of characters you want
123456
document:789456
Types of Data
Stringsperson:12345 Joe
Hashesuser:1000 username smith password
p4ssw0rd9 age 34
Listsfriends:1000 123 897 567 891
Types of Data
Sets
friends:1000 123 897 567 891
Sorted Sets
scores:1000 123/500 567/600 891/700 897/800
Another view
scores:1000123 / 500567 / 600891 / 700897 / 800
Types of Data
Queue Publisher queue Subscriber First-in, first-out (FIFO)
Interacting With Redis
Command-line tool
redis-cli
Redis Commands
http://redis.io/commands
Transactions
Server-side scripting via Lua
Programming Clients
ActionScript
C, C#, C++, Obj-C
Clojure
Common Lisp
D
Dart
Erlang
Go
Java
Lua
Node.js
Perl
PHP
Pure Data
Python
Ruby
Scala
Tcl
Full list at: www.redis.io/clients
Replication
Redis can support Master->Slave replication
Write to one master, keeps one or more slaves up to date
Master
Slave Slave Slave
Where’s the Bad and the Ugly?
Persistence
Redis is primarily an in-memory database
It is not really a “persistence” engine
All your data must fit in memory
Can configure persistence, but its not true long-term storage
Persistence is only for crash recovery
Interactive Tutorial
http://try.redis.io
Live Demo!
Installation
Red Hat / RPM-based systems (Red Hat, CentOS, Fedora) Yum install, exists in most of the basic yum
repositories
yum install redis
Debian-based systems (Ubuntu) Aptitude install, exists in most apt repositories
apt-get install redis
Zip file download from redis.io
Configure And Start
Config file: /etc/redis.conf
Start/stop uses service command: service redis [ start | stop | restart |
status]
Installing Yum Repository
Redis.io: Only source code
Get Yum repository from FedoraProject.org – Extra Packages for Enteprise Linux:
http://fedoraproject.org/wiki/EPEL
rpm -Uvh http://dl.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-8.noarch.rpm
yum install redis
Welcome To The Machine!!
You are not supposed to be here… Go watch the live demo!!
Questions?
Thank You For Coming!
Please rate this Meet Up:www.meetup.com/data-masters
(or go there to join!)
Check out my blog and forums:www.dbtekpro.com
After Party!!Miller’s Ale House
Miracle Mile
