This is the general what's-new session for Amazon DynamoDB in which we cover newly announced features and provide an end-to-end view of recent innovations. We also share some customer success stories and use cases. Come to this session to learn all about what’s new for DynamoDB.

2. © 2018, Amazon Web Services, Inc. or its affiliates. All rights reserved.
What’s New for Amazon
DynamoDB
Tony Petrossian
General Manager, DynamoDB
Amazon Web Services
D A T 2 0 1
Jeff Wierer
Senior Manager, Product Management
Amazon Web Services

3. Amazon DynamoDB Customers
© 2018, Amazon Web Services, Inc. or its affiliates. All rights reserved.

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DynamoDB customer stories, told by customers
DAT332: Why GE Aviation Migrated from Cassandra to Amazon DynamoDB
DAT320: Becoming a Nimble Giant: How Amazon DynamoDB Serves Nike at Scale
DAT341: Migrating Financial and Accounting Systems from Oracle to Amazon DynamoDB
DAT345: How GumGum Migrated from Cassandra to Amazon DynamoDB
DAT326: The Amazon.com Database Journey to AWS – Top 10 Lessons Learned
DAT325: How Oath Built a Multi-Region GDPR Application with Amazon DynamoDB
DAT347: How Amazon Migrated Items and Offers for Retail, Marketplace, and Digital to DynamoDB

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DynamoDB
Fully managed nonrelational database for any scale
Performance at scale
Single-digit millisecond response
Consistent perf at any scale
Virtually unlimited throughput
Secondary indexes
Flexible data model
Enterprise ready
Encryption at rest and transit
Fine-grained access control
99.99% service level agreement
Backup and restore
Fully managed
Security
Durability
Availability
Adaptive capacity
Maintenance free
Global tables
DynamoDB Streams
Time To Live

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Fully managed
Maintenancefree
Think of all the other things you could do if you didn’t have to manage:
Security
Operating system patching
Database patching
Access control
Audit
Encryption
Compliance
Durability
Sustain server, rack, and datacenter outages
Re-replicate data quickly upon hardware failure
Manage backup and restore
Availability
High availability configuration
Monitoring
Cross-region replication
Performance
Performance tuning
Indexing
In-memory caching
Scalability
Capacity planning
Host provisioning
Host repair and retirement

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DynamoDB Transactional APIs
any item
Purpose built for developers using DynamoDB
in any table
In region

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DynamoDB transactions
Simplify your code by executing multiple, all-or-nothing
actions within and across tables with a single API call
Single
API
Call

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TransactWriteItems and TransactGetItems APIs
ACID transaction support built for DynamoDB
The Good
Atomic Yes
Consistent Yes
Isolation Serializable
Durability Triple replica plus logs
Idempotent With a token
Synchronous Yes
Condition Checks Yes
Availability 99.99% SLA
Performance Predictable
Scalable Yes

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TransactWriteItems and TransactGetItems APIs
ACID transaction support built for DynamoDB
Without the ugly
Deadlocks NO
Long running transactions NO
Transactions left open NO
Unmanaged concurrency NO
DBA pain and suffering NO
The Good
Atomic Yes
Consistent Yes
Isolation Serializable
Durability Triple replica plus logs
Idempotent With a token
Synchronous Yes
Condition Checks 99.99% SLA
Availability Yes
Performance Predictable
Scalable Yes

12. © 2018, Amazon Web Services, Inc. or its affiliates. All rights reserved.
Why developers need transactions
Transactions help developers maintain data correctness by
coordinating actions across multiple items and tables
Simultaneous writes
or updates to
multiple items
Check multiple
conditions while
executing actions
Ensure data is
consistent across
multiple tables

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Gamers
Primary Key
Attributes
Gamer Tag Type
Hammer57
Rank
Level Points Tier
87 4050 Elite
Status
Health Progress
90 30
Weapon
Class Damage Range
Taser 87% 50
Assets
Coins
1400
FluffyDuffy
Rank
Level Points Tier
5 1072 Trainee
Status
Health Progress
37 8
Assets
Coins
0
Transactions Example
// Status of Hammer57
GET {
“TableName”:"Gamers",
“Key” : {
"GamerTag":{“S”:"Hammer57”},
"Type":{“S”: "Status”}
}
}
// Return all Hammer57
Gamers
GamerTag = :a
:a Hammer57

14. © 2018, Amazon Web Services, Inc. or its affiliates. All rights reserved.
Gamers
Primary Key
Attributes
Gamer Tag Type
Hammer57
Rank
Level Points Tier
87 4050 Elite
Status
Health Progress
10 30
Weapon
Class Damage Range
Taser 87% 50
Assets
Coins
1400
FluffyDuffy
Rank
Level Points Tier
5 1072 Trainee
Status
Health Progress
37 8
Assets
Coins
0
Transactions Example
// Atomic Update of Hammer57
// Health & Coins

15. © 2018, Amazon Web Services, Inc. or its affiliates. All rights reserved.
Gamers
Primary Key
Attributes
Gamer Tag Type
Hammer57
Rank
Level Points Tier
87 4050 Elite
Status
Health Progress
100 30
Weapon
Class Damage Range
Taser 87% 50
Assets
Coins
1000
FluffyDuffy
Rank
Level Points Tier
5 1072 Trainee
Status
Health Progress
37 8
Assets
Coins
0
Transactions Example
// Atomic Update of Hammer57
// Health & Coins
{ "TransactItems" : [ {
"Update ": {
"TableName": "Gamers",
”Key" :{"GamerTag" : {"S": "Hammer57"},
"Type" : {"S" : "Status"}},
"UpdateExpression" : "Set health = :nhealth",
"ExpressionAttributeValues":{":nhealth":{“N”:“100”}},
}
},
{
"Update ": {
"TableName": "Gamers",
”Key" :{"GamerTag" : {"S": "Hammer57"},
"Type" : {"S" : "Assets"} },
"ConditionExpression" : "coins > :cost",
"UpdateExpression" : "Set coins = coins - :cost",
"ExpressionAttributeValues" :{":cost":{“N”:“400”}}
}
}]
}

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Database capacity planning

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Vertical scaling with relational databases

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Horizontal scaling with NoSQL databases

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DynamoDB
Serverless
No software to
maintain or servers
to manage
Massively scalable
As much throughput
as you want, when
you want it
High performance
Consistent single-
digit millisecond
response times

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DynamoDB on-demand

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DynamoDB on-demand
Features
• No capacity planning, provisioning, or
reservations–simply make API calls
• Pay only for the reads and writes you perform
Key benefits
• Eliminates tradeoffs of over- or under-
provisioning
• Instantly accommodates your workload as traffic
ramps up or down

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DynamoDB: Capacity managed for you
Govern max consumption

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24. © 2018, Amazon Web Services, Inc. or its affiliates. All rights reserved.
DynamoDB
Advancements over the last 21 months
VPC
endpoints
April 2017
Auto
scaling
June 2017
DynamoDB
Accelerator (DAX)
April 2017
Time To
Live (TTL)
February 2017
Global tables
On-demand
backup
Encryption at rest
November 2017 November 2017 November 2017
Point-in-time
recovery
March 2018
SLA
June 2018
99.999% SLA
August 2018
Adaptive
capacity ACID
November 2018
Transactions
November 2018
On-demand

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26. © 2018, Amazon Web Services, Inc. or its affiliates. All rights reserved.
Cassandra to Amazon DynamoDB Migration
Migrate data from Apache Cassandra and migrate to DynamoDB
• Extracts data through local migration agents
• Data is optimized for DynamoDB and saved in local files
• Files are loaded to an Amazon Simple Storage Service (Amazon S3) bucket
(through network or Amazon Snowball) and then to DynamoDB
AWS SCT S3 Bucket Amazon DynamoDB
AWS DMS

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DynamoDB related sessions
DAT201 – A Deep Dive into What’s New for Amazon DynamoDB
DAT303 – Protecting Your Greatest Asset (Your Data): Security Best Practices on DynamoDB
DAT311– Building Serverless Applications with Amazon DynamoDB & AWS Lambda – Workshop
DAT314 – Migrating Your NoSQL Database to Amazon DynamoDB
DAT320 – Becoming a Nimble Giant: How Amazon DynamoDB Serves Nike at Scale
DAT321 – Amazon DynamoDB Under the Hood: How We Built the Hyper-Scale Database of the Future
DAT325 – How Oath (a Verizon Company) Built a Multi-Region GDPR Application with Amazon DynamoDB
DAT332 – Why GE Aviation Migrated from Cassandra to Amazon DynamoDB
DAT333 – Real-World Use Cases for Amazon DynamoDB
DAT341 – Migrating Financial and Accounting Systems from Oracle to Amazon DynamoDB
DAT342 – Implementing Microservice Architectures with Amazon DynamoDB and AWS Lambda
DAT345 – How GumGum Migrated from Cassandra to Amazon DynamoDB
DAT347 – How Amazon Migrated Items and Offers for Retail, Marketplace, and Digital to DynamoDB
DAT349 – Deep Dive on Amazon DynamoDB Global Tables
DAT352 – Migrate Your Nonrelational Database to AWS
DAT357 – Build Internet-Scale Apps with Amazon DynamoDB
DAT365 – Separating Fact from Fiction: Amazon DynamoDB Scaling and Adaptive Capacity
DAT401 – Amazon DynamoDB Deep Dive: Advanced Design Patterns for DynamoDB
DAT404 – Advanced Design Patterns for Amazon DynamoDB – Workshop

28. © 2018, Amazon Web Services, Inc. or its affiliates. All rights reserved.
But wait, there’s more about DynamoDB
• A list of all DynamoDB sessions, workshops, and chalk talks
• Migrating Apache Cassandra databases to DynamoDB
• What’s new with DynamoDB
• Purpose-built databases in AWS
• DynamoDB service level agreement
• Adaptive capacity
• Point-in-time recovery (PITR)
• Global tables

29. Follow @dynamodb to get the latest

30. Thank you!
© 2018, Amazon Web Services, Inc. or its affiliates. All rights reserved.
Tony Petrossian
@tonypetrossian
Jeff Wierer

31. © 2018, Amazon Web Services, Inc. or its affiliates. All rights reserved.