REDIculouS TITLE

Philip Poots

@pootsbook

Ruby Developer

Audacio.us

3

18

3

ME

SUBJECT

Redis is…

Remote Dictionary Server NoSQL Key-Value Store Data Structures Server ‘Memcached on steroids’

INTRO.

Redis is not…

SQL Document Store BigTable Store

INTRO.

The Grand Schema of things POSITION

Scal

abili

ty &

Pe

rfo

rman

ce

Depth of Functionality

RDBMS

MongoDB CouchDB

Memcached

Redis

Key Value

Rediculously Fast In Memory Database Non-blocking IO, single threaded 100,000+ read/writes per second Complements your existing storage

BENEFITS

Data Structures

String Hash List Set Sorted Set

DATA

Data Structures

String Hash List Set Sorted Set

DATA

Social Connections

friends

SETS

followers following

SQL

Create a JOIN table allowing self-reference on users Create indices Verify uniqueness Write lots of code w/ slow queries

SETS

Redis

For each user have two sets: -  following [1, 3, 5] -  followers [ 2, 3, 4, 7, 9]

SETS

Redis: Following

SADDuser:1:following2SADDuser:2:followers1SADDuser:1:following3SADDuser:3:followers1SMEMBERSuser:1:following=>[2,3]

SETS

Redis: Friend

SADDuser:2:following1SADDuser:1:followers2SINTERuser:1:followinguser:1:followers=>[2]

SETS

Social Connections Redis

SINTER user:1:following user:1:followers

SETS

user:1:following user:1:followers

Redis

redis.io

MORE