Managing large volumes of data isn’t trivial and needs a plan. Fast Data is how we describe the nature of data in a heavily consumer-driven world. Fast in. Fast out. Is your data infrastructure ready? You will learn some important reference architectures for large-scale data problems. The three main areas are covered: Organize - Manage the incoming data stream and ensure it is processed correctly and on time. No data left behind. Process - Analyze volumes of data you receive in near real-time or in a batch. Be ready for fast serving in your application. Store - Reliably store data in the data models to support your application. Never accept downtime or slow response times.

1. Successful Architectures for
Fast Data
Patrick McFadin
VP Developer Relations, DataStax
@PatrickMcFadin

2. © DataStax, All Rights Reserved.
• VP Developer Relations at DataStax
• Solution Architect for DataStax
• Chief Architect at Hobsons
• Building and deploying web apps since 1996
2
Who am I?

3. © DataStax, All Rights Reserved.
THE CHALLENGE:
Fast Data?
• Big Data is all about processing at scale
• Fast Data can be any size
• Fast Data is the biggest challenge in Data
Management today
3
When do I know I have Fast Data vs Big Data?

4. © DataStax, All Rights Reserved.4
The Problem
Your
Magical
App

5. © DataStax, All Rights Reserved.
Danger here be dragons
5

6. © DataStax, All Rights Reserved.
The Great Unknown
6
Scary parts
Scary parts
Scary parts
Scary parts
Scary parts
Scary parts
Scary parts
Scary parts

7. ?

10. © DataStax, All Rights Reserved.10
Distributed? Sad!
shard 1 shard 2 shard 3 shard 4
App Server
client

11. © DataStax, All Rights Reserved.11
Uptime
Rack Rack Rack
Data Center
Rack Rack Rack
Data Center
0% chance of 100% uptime in one data center

12. © DataStax, All Rights Reserved.12
Uptime - Cloud version
AZ AZ AZ
Region
AZ AZ AZ
Region
0% chance of 100% uptime in one region

13. © DataStax, All Rights Reserved.13
Remember AWS:Reboot?
Double-click to edit

14. © DataStax, All Rights Reserved.14
Can you withstand failure?
Double-click to edit

16. 133 ms
Looks like you want to go
faster than light. Can I help?
Yes No

17. © DataStax, All Rights Reserved.17
Solutions? Sad!

18. © DataStax, All Rights Reserved.18
Time to slay the dragons

19. © DataStax, All Rights Reserved.19
Organize Process Store
Macro Architecture for Success

20. SMACK

21. Spark
Mesos
Akka
Cassandra
Kafka

22. CassandraAkka
SparkKafka
Organize Process Store
Mesos
KafkaKafkaKafka
SparkSparkSpark
AkkaAkkaAkka
CassandraCassandraCassandra

23. CassandraAkka
SparkKafka
Organize Process Store

24. Kafka

25. Kafka decouples data pipelines

26. The problem
Kitchen
Hamburger
please
Meat disk
on bread
please

27. Scale
Producer
Topic = Hamburgers
Order
1
Order
2
Consumer
Order
3
Order
4
Order
5
Topic = Pizza
Order
1
Order
2
Order
3
Order
4
Order
5
Topic = Food

28. Kafka
Producer
Topic = Temperature
Temp
1
Temp
2
Consumer
Temp
3
Temp
4
Temp
5
Collection
API
Temperature
Processor
Topic = Precipitation
Precip
1
Precip
2
Precip
3
Precip
4
Precip
5
Precipitation
Processor
Broker

29. Kafka
Producer
Topic = Temperature
Temp
1
Temp
2
Consumer
Temp
3
Temp
4
Temp
5
Collection
API
Temperature
Processor
Topic = Precipitation
Precip
1
Precip
2
Precip
3
Precip
4
Precip
5
Precipitation
Processor
Broker
Partition 0
Partition 0

30. Kafka
Producer Consumer
Collection
API
Temperature
Processor
Precipitation
Processor
Topic = Temperature
Tem
1
Temp
2
Tem
3
Temp
4
Temp
5
Topic = Precipitation
Precip
1
Precip
2
Precip
3
Precip
4
Precip
5
Broker
Partition 0
Partition 0
Tem
1
Temp
2
Tem
3
Temp
4
Temp
5
Partition 1
Temperature
Processor

31. Kafka
Producer Consumer
Collection
API
Temperature
Processor
Precipitation
Processor
Topic = Temperature
Tem
1
Temp
2
Tem
3
Temp
4
Temp
5
Topic = Precipitation
Precip
1
Precip
2
Precip
3
Precip
4
Precip
5
Broker
Partition 0
Partition 0
Tem
1
Temp
2
Tem
3
Temp
4
Temp
5
Partition 1
Temperature
Processor
Topic = Temperature
Tem
1
Temp
2
Tem
3
Temp
4
Temp
5
Topic = Precipitation
Precip
1
Precip
2
Precip
3
Precip
4
Precip
5
Broker
Partition 0
Partition 0
Tem
1
Temp
2
Tem
3
Temp
4
Temp
5
Partition 1
Topic Temperature
Replication Factor = 2
Topic Precipitation
Replication Factor = 2

32. Kafka
Producer
Consumer
Collection
API
Temperature
Processor
Precipitation
Processor
Topic = Temperature
Tem
1
Temp
2
Tem
3
Temp
4
Temp
5
Topic = Precipitation
Precip
1
Precip
2
Precip
3
Precip
4
Precip
5
Broker
Partition 0
Partition 0
Tem
1
Temp
2
Tem
3
Temp
4
Temp
5
Partition 1 Temperature
Processor
Topic = Temperature
Tem
1
Temp
2
Tem
3
Temp
4
Temp
5
Topic = Precipitation
Precip
1
Precip
2
Precip
3
Precip
4
Precip
5
Broker
Partition 0
Partition 0
Tem
1
Temp
2
Tem
3
Temp
4
Temp
5
Partition 1
Temperature
Processor
Temperature
Processor
Precipitation
Processor
Topic Temperature
Replication Factor = 2
Topic Precipitation
Replication Factor = 2

33. Guarantees
Order
•Messages are ordered as they are sent by the
producer
•Consumers see messages in the order they were
inserted by the producer
Durability
•Messages are delivered at least once
•With a Replication Factor N up to N-1 server failures
can be tolerated without losing committed messages

34. Akka

35. Akka in a nutshell
• Highly concurrent
• Reactive
• Fully distributed
• Completely elastic and resilient
Actor
Mailbox
Actor
Mailbox
Actor
Mailbox
Actor
Mailbox

36. Temperature High/Low Stream
Weather
Stations
Receive API
Producer
TemperatureActor
TemperatureActor
TemperatureActor
Consumer

37. Cassandra

38. Cluster Server
Token Range
0 0-25
26 26-50
51 51-75
76 76-100
Server
ServerServer
0-25
76-100
26-5051-75

39. Replication
10.0.0.1
00-25
DC1
DC1: RF=1
Node Primary
10.0.0.1 00-25
10.0.0.2 26-50
10.0.0.3 51-75
10.0.0.4 76-100
10.0.0.1
00-25
10.0.0.4
76-100
10.0.0.2
26-50
10.0.0.3
51-75

40. Replication
10.0.0.1
00-25
10.0.0.4
76-100
10.0.0.2
26-50
10.0.0.3
51-75
DC1
DC1: RF=2
Node Primary Replica
10.0.0.1 00-25 76-100
10.0.0.2 26-50 00-25
10.0.0.3 51-75 26-50
10.0.0.4 76-100 51-75
76-100
00-25
26-50
51-75

41. Replication DC1
DC1: RF=3
Node Primary Replica Replica
10.0.0.1 00-25 76-100 51-75
10.0.0.2 26-50 00-25 76-100
10.0.0.3 51-75 26-50 00-25
10.0.0.4 76-100 51-75 26-50
10.0.0.1
00-25
10.0.0.4
76-100
10.0.0.2
26-50
10.0.0.3
51-75
76-100
51-75
00-25
76-100
26-50
00-25
51-75
26-50

42. Consistency DC1
DC1: RF=3
Node Primary Replica Replica
10.0.0.1 00-25 76-100 51-75
10.0.0.2 26-50 00-25 76-100
10.0.0.3 51-75 26-50 00-25
10.0.0.4 76-100 51-75 26-50
10.0.0.1
00-25
10.0.0.4
76-100
10.0.0.2
26-50
10.0.0.3
51-75
76-100
51-75
00-25
76-100
26-50
00-25
51-75
26-50
Client
Write to
partition 15

43. Consistency level
Consistency Level Number of Nodes Acknowledged
One One
Quorum 51%

44. Consistency DC1
DC1: RF=3
Node Primary Replica Replica
10.0.0.1 00-25 76-100 51-75
10.0.0.2 26-50 00-25 76-100
10.0.0.3 51-75 26-50 00-25
10.0.0.4 76-100 51-75 26-50
10.0.0.1
00-25
10.0.0.4
76-100
10.0.0.2
26-50
10.0.0.3
51-75
76-100
51-75
00-25
76-100
26-50
00-25
51-75
26-50
Client
Write to
partition 15
CL= One

45. Consistency DC1
DC1: RF=3
Node Primary Replica Replica
10.0.0.1 00-25 76-100 51-75
10.0.0.2 26-50 00-25 76-100
10.0.0.3 51-75 26-50 00-25
10.0.0.4 76-100 51-75 26-50
10.0.0.1
00-25
10.0.0.4
76-100
10.0.0.2
26-50
10.0.0.3
51-75
76-100
51-75
00-25
76-100
26-50
00-25
51-75
26-50
Client
Write to
partition 15
CL= One

46. Consistency DC1
DC1: RF=3
Node Primary Replica Replica
10.0.0.1 00-25 76-100 51-75
10.0.0.2 26-50 00-25 76-100
10.0.0.3 51-75 26-50 00-25
10.0.0.4 76-100 51-75 26-50
10.0.0.1
00-25
10.0.0.4
76-100
10.0.0.2
26-50
10.0.0.3
51-75
76-100
51-75
00-25
76-100
26-50
00-25
51-75
26-50
Client
Write to
partition 15
CL= Quorum

47. Multi-datacenter
DC1
DC1: RF=3
Node Primary Replica Replica
10.0.0.1 00-25 76-100 51-75
10.0.0.2 26-50 00-25 76-100
10.0.0.3 51-75 26-50 00-25
10.0.0.4 76-100 51-75 26-50
10.0.0.1
00-25
10.0.0.4
76-100
10.0.0.2
26-50
10.0.0.3
51-75
76-100
51-75
00-25
76-100
26-50
00-25
51-75
26-50
Client
Write to
partition 15
DC2
10.1.0.1
00-25
10.1.0.4
76-100
10.1.0.2
26-50
10.1.0.3
51-75
76-100
51-75
00-25
76-100
26-50
00-25
51-75
26-50
Node Primary Replica Replica
10.1.0.1 00-25 76-100 51-75
10.1.0.2 26-50 00-25 76-100
10.1.0.3 51-75 26-50 00-25
10.1.0.4 76-100 51-75 26-50
DC2: RF=3

48. Multi-datacenter
DC1
DC1: RF=3
Node Primary Replica Replica
10.0.0.1 00-25 76-100 51-75
10.0.0.2 26-50 00-25 76-100
10.0.0.3 51-75 26-50 00-25
10.0.0.4 76-100 51-75 26-50
10.0.0.1
00-25
10.0.0.4
76-100
10.0.0.2
26-50
10.0.0.3
51-75
76-100
51-75
00-25
76-100
26-50
00-25
51-75
26-50
Client
Write to
partition 15
DC2
10.1.0.1
00-25
10.1.0.4
76-100
10.1.0.2
26-50
10.1.0.3
51-75
76-100
51-75
00-25
76-100
26-50
00-25
51-75
26-50
Node Primary Replica Replica
10.1.0.1 00-25 76-100 51-75
10.1.0.2 26-50 00-25 76-100
10.1.0.3 51-75 26-50 00-25
10.1.0.4 76-100 51-75 26-50
DC2: RF=3

49. Multi-datacenter
DC1
DC1: RF=3
Node Primary Replica Replica
10.0.0.1 00-25 76-100 51-75
10.0.0.2 26-50 00-25 76-100
10.0.0.3 51-75 26-50 00-25
10.0.0.4 76-100 51-75 26-50
10.0.0.1
00-25
10.0.0.4
76-100
10.0.0.2
26-50
10.0.0.3
51-75
76-100
51-75
00-25
76-100
26-50
00-25
51-75
26-50
Client
Write to
partition 15
DC2
10.1.0.1
00-25
10.1.0.4
76-100
10.1.0.2
26-50
10.1.0.3
51-75
76-100
51-75
00-25
76-100
26-50
00-25
51-75
26-50
Node Primary Replica Replica
10.1.0.1 00-25 76-100 51-75
10.1.0.2 26-50 00-25 76-100
10.1.0.3 51-75 26-50 00-25
10.1.0.4 76-100 51-75 26-50
DC2: RF=3

50. Spark

51. Great combo
Store a ton of data Analyze a ton of data

52. Great combo
Spark Streaming
Near Real-time
SparkSQL
Structured Data
MLLib
Machine Learning
GraphX
Graph Analysis

53. Great combo
Spark Streaming
Near Real-time
SparkSQL
Structured Data
MLLib
Machine Learning
GraphX
Graph Analysis
CREATE TABLE raw_weather_data (
wsid text,
year int,
month int,
day int,
hour int,
temperature double,
dewpoint double,
pressure double,
wind_direction int,
wind_speed double,
sky_condition int,
sky_condition_text text,
one_hour_precip double,
six_hour_precip double,
PRIMARY KEY ((wsid), year, month, day, hour)
) WITH CLUSTERING ORDER BY (year DESC, month DESC, day DESC, hour DESC);
Spark Connector

54. Executer
Master
Worker
Executer
Executer
Server

55. Master
Worker
Worker
Worker Worker
0-24Token Ranges
0-100
25-49
50-74
75-99
I will only
analyze 25% of
the data.

56. Spark Streaming - Micro Batching
56© 2015. All Rights Reserved.

57. © DataStax, All Rights Reserved.57
DSE 5.1 Download today!
https://academy.datastax.com/downloads

58. Mesos

59. CassandraAkka
SparkKafkaKafkaKafkaKafka
SparkSparkSpark
AkkaAkkaAkka
CassandraCassandraCassandra
I need CPU!!
I need memory!!
Got you covered

60. Kafka
Akka AkkaAkka
Kafka
Spark Spark

61. Kafka
Akka
Akka
Akka
Kafka
Spark Spark

62. © DataStax, All Rights Reserved.62
Ready to go!
Mesosphere DC/OS

63. © DataStax, All Rights Reserved.
One Last Dragon
63

64. © DataStax, All Rights Reserved.64
Will the cloud save you?

65. © DataStax, All Rights Reserved.65
Organize Process Store
Macro Architecture for Success
Rent Rent

66. © DataStax, All Rights Reserved.66
Be multi-cloud. Be happy
AWS
GCP
Azure

67. © DataStax, All Rights Reserved.67
Did you see this?

68. © DataStax, All Rights Reserved.
How are you going to build
your next amazing app?
68

69. Let us help you!
www.datastax.com
academy.datastax.com
@PatrickMcFadin