cocktail d’expérience informatiquesGenève 3 & 4 octobre 2011

Seconde édition

Track

Auteur

Session

Java

Galder ZAMARREÑO

Data Grids andData Caching

soft-shake.ch

Tuesday, October 11, 11

Tuesday, October 11, 11

Data Grids and Data Caching

Galder ZamarreñoSenior Software Engineer

Red Hat, Inc

3rd October 2011, Soft Shake

Tuesday, October 11, 11

Galder Zamarreño

• R&D Engineer, Red Hat Inc.• Infinispan developer• 5+ years exp. with distributed data systems• Twitter: @galderz• Blog: zamarreno.com

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Agenda

• What is Infinispan?• Infinispan as in-memory cache• Infinispan as in-memory data grid• Data-as-a-Service with Infinispan• Who uses Infinispan?

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Introducing

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What is Infinispan?

An in-memory, highly available, elastic, and open source (LGPL) data grid platform

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Infinispan can be used as...

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Local in-memory cache

Boost performance caching data which is hard to calculate or expensive to retrieve

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ConcurrentHashMap ?

Infinispan provides greater concurrency with MVCC, has built-in eviction...etc

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Local cache example

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A local cache might not be enough...

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Clustered caches

Scale up your application and maintain cache consistency

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Consistency in a clustered cache...

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Invalidation

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Invalidation

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Invalidation

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Cache-oriented operations...

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putForExternalRead()put() putForExternalRead()

Use for updating state Use to cache state read from external source

Regular lock acquisition timeout Fail-fast

Could throw an exception Fails quietly

Could cause existing transaction to fail

Will never affect existing transactions

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Accessing Infinispan caches

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Embedded Access

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Infinispan is not just a cache!

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In-memory data grid

It’s a Fast, Available, Distributed, Elastic data store, not just a cache!

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Invalidation won’t work for data grids!

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Data distribution

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Replication

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Distribution• With number of copies = 2

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How is data distributed??

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Consistent Hashing

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Solving unequal distribution

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Virtual Nodes

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Accessing Infinispan data grid

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Remote Access

• Via protocols :

• REST

• Hot Rod

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Hot Rod clients

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Infinispan as cloud data store

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Traditional 3-tier App

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Typical IaaS App

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Traditional PaaS App

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Where’s your data stored??

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Clouds are ephemeral!!

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State

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Virtualizing Data

Some public services exist (i.e. Amazon RDS), but not all cloud deployments are public!

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Build your own Data-as-a-Service!

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Characteristics of DaaS

Elastic, scalable and highly available!

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DaaS with Infinispan

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ArchitectureM

anage and Monitor

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Who uses Infinispan?

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As a cache...

Hibernate 2nd level cache, Torquebox Rails cache...

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As a temporary store...

Http session cache & EJB SFSB cache, in JBoss AS7

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As data grid...

Real-time trading app of a well known stock exchange

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What’s next?

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Towards EDG

Solidifying Infinispan towards integration with Red Hat’s Enterprise Data Grid

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Plus more data grid...

Enhancing Hot Rod protocol, Hibernate Object/Grid Mapper ...etc

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Summary

Infinispan as fast powerful local cache that can be clustered!

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Summary

But also a F.A.D.E. data grid, accessible in embedded or remote fashion

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Summary

Build your own Infinispan based Data-as-a-Service in your private cloud!

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Questions

infinispan.org - @infinispan

speakerrate.com/galder

More on data grids at 5pm!

Tuesday, October 11, 11