Selecting the Right NoSQL Tool for the Job

Choosing a NoSQL Solution

Thursday, August 25, 11

Dave GrijalvaDirector of Platform Technology

Thursday, August 25, 11

NoSQL

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Why so many?

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Tradeoffs

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CAP Theorem

C

PA

Consistency

Partition Tolerance

Availability

Unpossible

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Access Patterns

• How much content?

• How many operations?

• Ratios of Insert/Update/Read/Delete?

• How valuable is your data?

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Schema and Indexing

• How will you access your data?

• User Requests vs Background Processing

• Secondary Indexes

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Clustering

•Where is the sharding done?

• Adding and removing nodes

•Where (in the world) is your data?

• Failure cases

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Operations

• Backup and recovery

• Multi-datacenter issues

• Ease of deployment

• Tools integration

• Support

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NoSQL @ ngmoco:)

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Start Simple

Load Balancer

API Server API Server API Server

MySQL MySQLMemcached

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OAuth

• Shared secret based

• Signature validation on every request

• Tokens are per session

• Tokens expire

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Redis

• In memory key/value store

• Really fast

• Delayed persistence

• Supports TTL per record

• Values can be blobs, lists, sets, or hashes

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Game Data Store

• Per user, per game key/value store

• Exposed via REST API

• Very write heavy

• Keys are usually provided upfront

• High data throughput

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Cassandra

• Configurable consistency

• No single write master

• Sharding managed by the cluster

• Built in replication

• Supercolumns!

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“The Bank”

• High transaction volume

• ACID a requirement

• Lots of tracking required for revenue calculations

• Five nines uptime

• Insert dominant

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Marklogic

• XML Document store

• Transactional

• Insert based persistence

• Temporal

• Clustered

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Tips

• Start as simple as possible

• Learn how the systems work

• Try to find success and failure stories

• Explore failure scenarios. Test!

• There is no best solution. Look for a best match solution

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ngmoco:) is hiring!ngmoco.com/careers

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Questions?

Thursday, August 25, 11