Learn. Connect. Explore.Learn. Connect. Explore.

Introduction to Microsoft Azure Redis Cache

Pradeep Kumar C

Cloud Integration Engineer

Angshuman Nayak

Cloud Integration Engineer

http://blogs.msdn.com/cie

Agenda• What is Caching ?

• Microsoft Azure Cache Offerings

• What is Redis Cache?

• Azure Redis Cache

• Azure Redis Cache Patterns

• Recommendations

What is Caching ?

A distributed, in-memory, flexible cache for all data types that can be used to speed up applications and reduce database load.

What can I cache?• Product catalogs

• Employee data

• User profiles

• Images

• Session state

• Shopping cart

• Game scores and state

• Social feeds

• Query output results

• Airline seating charts

• Inventory management system

• Game leaderboards

• Weather

• Stock quotes

Reference DataRead-heavy, changes infrequently

Microsoft Azure Cache Offerings

• Redis Cache

• Managed Cache

• Role based Cache

What is Redis ?

“

“

Redis is an open source, BSD licensed, advanced key-

value cache and store. It is often referred to as a data

structure server since keys can

contain strings, hashes, lists, sets, sorted

sets, bitmaps and hyperloglogs “ - redis.io

“Redis has many different use cases. The simplest way

to describe it is something between a traditional

database and doing computations in memory. Redis

exposes data structures that are accessed in memory

via a set of commands”. - Salvatore

Core Redis Features• Low latency, high throughput key-value store

• Per Key expiry, choice of eviction policies

• Atomic operations on data types

• Strings, hashes, lists, sets, sorted sets

• Publisher-Subscriber pattern

• LUA scripting

• Transaction

• Client libraries in multiple languages

Azure Redis• MS Open Tech ported Redis to Windows OS

• Cache hosted and managed by Microsoft

• One dedicated machine per cache (At-least)

• Sizes: 256 MB, 1 GB, 2.8 GB, 6 GB, 13 GB, 26 GB, 53 GB

• Available in all Azure Regions

• Basic SKU : Single cache node

• Standard SKU: Cache node + replica/slave node

• Availability SLA of 99.9%

#devconnections

Demo (Azure Redis)

HIGH Availability (Standard SKU only)

#devconnections

High Availability

Availability Set

Master Slave

High Availability

Availability Set

Master Slave

High Availability

Availability Set

Master Slave

High Availability

Availability Set

Master Slave

Monitoring and Alerting

#devconnections

Redis usage patterns

Query by Customer Name

Azure Web Site

Redis Cache

Wilber Finely: 0001:0032

Wilber Fryling: 0002:8051

Zachery Zega: 0001:9480

…

…

Azure Table Storage

0001:0032 Wilber Finely:234 1st st:20.0:…

0002:8051 Wilber Fryling:11 Larry ave:…

0001:9480 Zachery Zega:817 Main st:…

…

…

Wilber Finely0001:0032 0001:0032

Wilber Finely:234 1st st:20.0…

Demo (Redis Cache as a secondary index)

Recommendations • For running the Windows ported Redis Server locally you

need the Microsoft Visual C++ 2012 Redistributable Package

• Make the ConnectionMultiplexer Class as Singleton and reuse the same object for connections.

• By default the ConnectionTimeout and SyncTimeout are 1 sec. Increase them to a higher value.

Which Azure Cache offering is right for me?

Redis Cache Pricing DetailsCache Name Cache Size Basic Standard

C0 250 MB₹1.33 per hour

(~₹984 /month)

₹3.31 per hour

(~₹2,459 /month)

C1 1 GB₹3.31 per hour

(~₹2,459 /month)

₹8.30 per hour

(~₹6,170 /month)

C2 2.8 GB₹5.41 per hour

(~₹4,024 /month)

₹13.52 per hour

(~₹10,059 /month)

C3 6 GB₹10.82 per hour

(~₹8,047 /month)

₹27.04 per hour

(~₹20,118 /month)

C4 13 GB₹12.62 per hour

(~₹9,389 /month)

₹31.55 per hour

(~₹23,471 /month)

C5 26 GB₹25.24 per hour

(~₹18,777 /month)

₹63.10 per hour

(~₹46,941 /month)

C6 55 GB₹50.48 per hour

(~₹37,553 /month)

₹126.19 per hour

(~₹93,881 /month)

Redis usage patterns

Fireworks

new firework

new firework

1

23

Demo (Redis Cache as a Publisher-Subscriber channel)

In Review: Session Objectives And Takeaways

•Session Objective(s):• Introduce Azure Redis Cache

• Discuss Azure Cache Strategy

•Key Takeaways : • Azure Redis Cache is the recommended cache offering on

Azure.

• Azure Redis Cache is already a compelling offering and will only get better.

Q & A

Your Feedback is Important

OPTION 3: Feedback stations outside the hall

Fill out evaluation of this session and help shape future events.

OPTION 1 OPTION 2

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actual QR Code

ReferencesRelated references for you to expand your knowledge on the subject

• http://redis.io/commands

• http://redis.io/clients

• http://msopentech.com/opentech-projects/redis/

• https://github.com/MSOpenTech/redis

• http://msopentech.com/blog/2013/05/09/redis-on-windows-new-version-and-nuget-pac

• http://azure.microsoft.com/en-us/documentation/articles/cache-dotnet-how-to-use-azure-redis-cache/

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http://blogs.msdn.com/cieEmail:pkc@Microsoft.com/annayak@Microsoft.com