Cosmos DB is Microsoft's flagship Serverless database service in the Azure cloud. This slide-deck, presented at the Nashville Azure Meetup event on 09/20/2018 covers the why and what of Cosmos DB was is meant to be a good segue into further detailed and advanced topics. The slide-deck presents 3 use-cases for using Cosmos DB in E-Commerce, Healthcare, and IoT. Stay Tuned!

1. Nashville Azure Meetup
NashAzure.com

2. Instrumentation Logging
Log Monitoring
Development
DevOps
Operations Security
Compliance
Monitoring
Governance
Coding
Unit TestingPerformance Testing
Architecture
Code Reviews
Coded-UI Testing
Integration Testing
Patching
Service Packs
Infrastructure EoL Mgmt
Procurement
Backup Management
Disaster Recovery
Build Automation
Release Pipeline
Automated Provisioning
Pipeline Orchestration Scripting
Continuous Integration
Firewall Rules
Intrusion Detection
Intrusion Prevention
Penetration Testing
Cybersecurity
Data
Classification
Encryption
Alerting
Tier 1 Support
GDPRSOC 2
Audit
ISO 27001
Vendor Management
User-Acceptance Testing
Risk Management Records Management
Configuration Mgmt
Asset Tracking
Licensing and Renewals

3. Cosmos DB

4. Zero to 60 with Azure Cosmos DB

5. Zero to 60
WHY?
WHAT?
HOW?

6. Typical Software Application
UI
(Front-end)
Database
(Back-end)

7. Typical Software Application
UI
(Front-end)
Database
(Back-end)

8. Database Workloads
Operational
Analytical
Streaming
App Database
Database Insights ML Models
Insights ML ModelsDatabaseIoT

9. Database Workloads
Operational
Analytical
Streaming
SQL Data Warehouse
Azure Data Lake
Hive + Spark
Machine Learning
Cosmos DB

10. Azure Cosmos DB: WHAT?

11. Azure Cosmos DB: WHAT?
Microsoft’s PaaS
Database Service
NOSQL
NoSQL
Data Store
Serverless
On-Premise
Cloud
Relational
Data
{}
JSON
Server
Infrastructure
Service
Endpoint

12. Azure Cosmos DB: WHAT?
Multi-Model
Database
Support for
multiple
database APIs

13. Multi-Model Capability
MongoDBApp A
App B
Cassandra
App C SQL Server
Cosmos DB
data migration
Cosmos DB
data migration
Cosmos DB
data migration

14. Multi-Model Capability
App A
App B
App C
Cosmos DB
Cosmos DB
Cosmos DB

15. Multi-Model Capability
App A
App B
App C
Cosmos DB
Cosmos DB
Cosmos DB

16. Cosmos DB Data Models
Cosmos DB
Column
Key-Value
Document
Graph

17. Cosmos DB Data Models
Column
Key-Value
Document
Graph

18. Cosmos DB Data Models
Column
Key-Value
Document
Graph

19. Application Deployment Scenario
Developer
Code
Application
+
Database

20. Application Deployment Scenario
Application
+
Database

21. Application Deployment Scenario

22. Application Deployment Scenario
Primary
Secondary
Secondary
Secondary
Secondary

23. Application Deployment Scenario
Secondary
Secondary
Secondary
Secondary
Primary

24. Application Deployment Scenario
Secondary
Secondary
Secondary
Secondary
Primary

25. Application Deployment Scenario
Secondary
Secondary
Secondary
Secondary
Primary

26. Geo-Distribution & Failover

27. Geo-Distribution & Failover
Primary
Database
Secondary
(Read Replica 1)
Secondary
(Read Replica 2)
Secondary
(Read Replica n)

28. Geo-Distribution & Failover
Primary
Database
Secondary
(Read Replica 1)
Secondary
(Read Replica 2)
Secondary
(Read Replica n)

29. Geo-Distribution & Failover
Primary
Database
Secondary
(Read Replica 1)
Secondary
(Read Replica 2)
Secondary
(Read Replica n)
Application
(CRUD Operations)

30. Geo-Distribution & Failover
Primary
Database
Secondary
(Read Replica 1)
Secondary
(Read Replica 2)
Secondary
(Read Replica n)
Dashboard
(Reads Only)

31. Geo-Distribution & Failover
Primary
Database
Secondary
(Read Replica 1)
Secondary
(Read Replica 2)
Secondary
(Read Replica n)
Application
(CRUD Operations)

32. Geo-Distribution & Failover
Primary
Database
Secondary
(Read Replica 1)
Secondary
(Read Replica 2)
Secondary
(Read Replica n)
Application
(CRUD Operations)

33. Geo-Distribution & Failover
Primary
Database
Primary
Database
Secondary
(Read Replica 2)
Secondary
(Read Replica n)
Application
(CRUD Operations)

34. Geo-Distribution & Failover
Primary
Database
Primary
Database
Secondary
(Read Replica 2)
Secondary
(Read Replica n)

35. Geo-Distribution & Failover
Primary
Database
Primary
Database
Secondary
(Read Replica 2)
Secondary
(Read Replica n)
Application
(CRUD Operations)

36. Geo-Distribution & Failover
Primary
Database
Secondary
(Read Replica 1)
Secondary
(Read Replica 2)
Secondary
(Read Replica n)
Application
(CRUD Operations)

37. Geo-Distribution & Failover
Primary
Database
Secondary
(Read Replica 1)
Secondary
(Read Replica 2)
Secondary
(Read Replica n)
Application
(CRUD Operations)

38. Cosmos DB Geo-Distribution
West US
East US
Geo-distribution

39. Cosmos DB Geo-Distribution
East US
Geo-distribution
West US
All Users

40. Cosmos DB Geo-Distribution
East US
West US
All Users
Automatic
Failover

41. Cosmos DB Geo-Distribution
East US
West US
All Users

42. Cosmos DB Geo-Distribution
East US
West US
All Users

43. Cosmos DB Geo-Distribution
East US
West US
All Users

44. Cosmos DB Geo-Distribution

45. Planet-Scale Geo-Distribution
Available for all
Azure Regions

46. Cosmos DB Multi-Master Capability
East US
Geo-distribution
West US
All Users
Reads
+ Writes
Reads
Only

47. Cosmos DB Multi-Master Capability
East US
West US
New York
Reads
+ Writes
Reads
+ Writes
Seattle
Data Replication
Data Replication

48. 20 40
60
0
Core Capabilities?
Multi-model
Geo-Distribution
Failover
Getting Started
Nomenclature
Data Migration
Programming Model
Advanced Topics
Change Feed
Gremlin API
Use-cases

49. Core Capabilities
Multi-model
Geo-Distribution
Failover 20 40
60
0
Getting Started?
Nomenclature
Data Migration
Programming Model
Advanced Topics
Change Feed
Gremlin API
Use-cases

50. Cosmos DB Nomenclature
Resource Model
Partitioning & Throughput
Consistency Levels

51. Cosmos DB Resource Model
Account
https://woodgrove.documents.azure.com
- R e pr esent s t h e C o s mo s D B I n s t anc e
- E x po s es A c c o u nt -lev el S e t t in gs
o G l o b a l d i s t r i b u t i o n
o C o n s i s t e n c y L e v e l s
o F i r e w a l l
o K e y s

52. Cosmos DB Resource Model
Account
https://woodgrove.documents.azure.com
Database
USA
Database
EUR
Database
AUS
- O n e o r m o r e d a t abas es i n e a c h a c c o u nt
- A c c o u nt -lev el S e t t in gs a p p lied t o e a c h a c c o u nt
o G l o b a l d i s t r i b u t i o n
o C o n s i s t e n c y L e v e l s
o F i r e w a l l
o K e y s

53. Cosmos DB Resource Model
Account
https://woodgrove.documents.azure.com
Database
USA
Database
EUR
Database
AUS
Collection
Customer
Collection
Account
Collection
Transaction
- S i m il ar t o a t ab l e
- R e pr esent s a l o g ic al e n t it y

54. Cosmos DB Resource Model
Account
https://woodgrove.documents.azure.com
Database
USA
Database
EUR
Database
AUS
Collection
Customer
Collection
Account
Collection
Transaction
Items
} E a c h i t em r e pr esent s
a J S O N r e c o r d

55. Cosmos DB Partitioning & Throughput
Account
https://woodgrove.documents.azure.com
Database
USA
Throughput

56. Cosmos DB Partitioning
Account
https://woodgrove.documents.azure.com
Database
USA
Partition Key: User Id

57. Cosmos DB Partitioning
Partition Key: User Id
hash(User Id)
Psuedo-random distribution of data over
range of possible hashed values

58. Cosmos DB Partitioning
hash(User Id)
….
Adnan
Lisa
…
Partition 1 Partition 2 Partition n
Pascal
Ali
Bob
Sonya
Rimma
Alice
Carol
…

59. Cosmos DB Throughput
Measured in Request Units (RU’s)
1 RU => Resources required to
read 1kb of data

60. Cosmos DB Throughput
Example Item Size: 1 kb
Reads per sec: 500
Writes per sec: 500
Request Units:
(500 x 1) + (500 x 5) = 3,000 RUs
Request Unit Calculator: https://www.documentdb.com/capacityplanner

61. Cosmos DB Consistency Levels
1. Strong
2. Bounded Staleness
3. Session
4. Consistent Prefix
5. Eventual

62. Cosmos DB Consistency Levels
1. Strong
2. Bounded Staleness
3. Session
4. Consistent Prefix
5. Eventual

63. Cosmos DB Consistency Levels
Geo-distribution and failover are not
required.

64. Cosmos DB Consistency Levels
One writer; multiple readers
Read Latency is acceptable, but data
staleness is NOT.
One version of the truth required for
all readers

65. Cosmos DB Consistency Levels
A certain known degree of staleness
is acceptable
Writes are fast, reads slightly slower

66. Cosmos DB Consistency Levels
Reads lag behind writes by most
k prefixes or t interval

67. Cosmos DB Consistency Levels
Read your own writes

68. Cosmos DB Consistency Levels
Never see out of order writes

69. Cosmos DB Consistency Levels
Potential for out-of-order writes

70. Data Migration to Cosmos DB
Azure Portal
Cosmos DB

71. Data Migration to Cosmos DB
Cosmos DB
MongoDB
Cassandra
SQL Server
Cosmos DB
Data Migration Tool

72. Programming Model
Cosmos DB

73. Programming Model
- Stored Procedures
- User-defined Functions (UDFs)
- Triggers

74. Core Capabilities
Multi-model
Geo-Distribution
Failover 20 40
60
0
Getting Started?
Nomenclature
Data Migration
Programming Model
Advanced Topics
Change Feed
Gremlin API
Use-cases

75. Core Capabilities
Multi-model
Geo-Distribution
Failover 20 40
60
0
Getting Started
Nomenclature
Data Migration
Programming Model
Advanced Topics
Change Feed
Gremlin API
Use-cases

76. Cosmos DB Change Feed
Cosmos DB

77. Cosmos DB Change Feed
Cosmos DB
Updates

78. Cosmos DB Change Feed
Cosmos DB
Change Feed
Consumer 1
Consumer 2
Consumer 3

79. Cosmos DB Gremlin API
Enables use of graph data model
Allows storage of Vertices, Edges, and Properties
Ideal for highly-connected data
Data queried using Gremlin queries

80. Cosmos DB Use Cases
E-Commerce
Healthcare
IoT
Operational
Analytical
Streaming

81. Use Case: E-Commerce

82. Use Case: E-Commerce
Region A Region B
Azure
Traffic Manager
App hosted
in Region B
App hosted
in Region A
Cosmos DB
in Region B
Cosmos DB
in Region A
Geo-Distribution

83. Use Case: Healthcare
Point-of-Care
(Bedside)
Telemetry
Notes
Prescriptions
Test
Results HDFS
EMR

84. Use Case: Healthcare
EMR
Cosmos DB

85. Use Case: Healthcare
Cosmos DB
Change Feed
Processor
Doctor
Pharmacy

86. Use Case: IoT
Cosmos DB
Sensor
Telemetry

87. Use Case: IoT
Cosmos DB
Change Feed
Processor
Cosmos DB
SQL Server
API

88. Use Case: IoT
Cosmos DB
Change Feed
Processor
Cosmos DB
SQL Server
API
Aircraft
Manufacturer
US DOT
Airline
Violations

89. Core Capabilities
Multi-model
Geo-Distribution
Failover 20 40
60
0
Getting Started
Nomenclature
Data Migration
Programming Model
Advanced Topics
Change Feed
Gremlin API
Use-cases

90. Recap
Cosmos DB

91. Recap
Cosmos DB
Simplified Management
- Provision within minutes
- No Infrastructure to manage
- No patches/updates

92. Recap
Cosmos DB
Disaster Recovery OOTB
- HADR/BCDR out-of-the-box
- Failover: Automatic + Manual
- Minimal to no configuration

93. Recap
Cosmos DB
Global Scalability
- Geo-Distribution
- Planet-scale
- Multi-Master support

94. Recap
Cosmos DB
Programmability
- REST API
- Multiple Languages supported
- Change Feed for event sourcing
REST
SDK

95. Thank You!
Azure Databricks
Nashville Azure Meetup
NashAzure.com