1.
Who am I?
Vitaly Kushner
• Founder of Astrails
• 19 years of industry experience
• Building Web Apps since 2005
Wednesday, June 16, 2010

2.
NoSQL
when, why and how?
Vitaly Kushner
astrails.com
Wednesday, June 16, 2010

3.
Google
Wednesday, June 16, 2010

4.
Yahoo
Google
Wednesday, June 16, 2010

5.
Yahoo
Google
Amazon
Wednesday, June 16, 2010

6.
Yahoo
Facebook
Google
Amazon
Wednesday, June 16, 2010

7.
Yahoo
Facebook
Twitter Google
Amazon
Wednesday, June 16, 2010

8.
Yahoo
Digg Facebook
Twitter Google
Amazon
Wednesday, June 16, 2010

9.
Yahoo
Digg Facebook
Twitter Google
Amazon Rackspace
Wednesday, June 16, 2010

10.
Yahoo
Digg Facebook
Twitter Google
LinkedIn
Amazon Rackspace
Wednesday, June 16, 2010

11.
Yahoo
Digg Facebook
Twitter
Everybody Google
LinkedIn
Amazon Rackspace
Wednesday, June 16, 2010

12.
NoSQL
NoSQL
NoSQL NoSQL
NoSQL NoSQL
NoSQL NoSQL
NoSQL
NoSQL
Wednesday, June 16, 2010

13.
WTF is NoSQL?
and why should you care?
Wednesday, June 16, 2010

14.
Non relational
Wednesday, June 16, 2010

15.
Document based
Non relational
Wednesday, June 16, 2010

16.
Document based
Key-Value store
Non relational
Wednesday, June 16, 2010

17.
Document based
Key-Value store
Non relational
column-based
Wednesday, June 16, 2010

18.
Document based
Key-Value store
Non relational
column-based
Graph DB
Wednesday, June 16, 2010

19.
Document based
Key-Value store
Non relational
column-based Distributed
Graph DB
Wednesday, June 16, 2010

20.
Schema-less
Document based
Key-Value store
Non relational
column-based Distributed
Graph DB
Wednesday, June 16, 2010

21.
Schema-less
Document based
Key-Value store
Non relational
column-based Distributed
BASE is not ACID Graph DB
Wednesday, June 16, 2010

22.
Why & When
Wednesday, June 16, 2010

23.
Massive Data Volume
100K servers in a cluster
Wednesday, June 16, 2010

24.
Massive Data Volume
100K servers in a cluster
Twitter: 7+T/day
Wednesday, June 16, 2010

25.
High query workload
MongoDB: 8M operations/sec
Wednesday, June 16, 2010

26.
Flexible Schema
on the fly schema changes
Wednesday, June 16, 2010

27.
Massive Scale
Wednesday, June 16, 2010

28.
Availability
Wednesday, June 16, 2010

29.
Everyone want
Availability
Wednesday, June 16, 2010

30.
RDBMS
can deliver
Wednesday, June 16, 2010

31.
high price
Wednesday, June 16, 2010

32.
Not ACID anymore
Wednesday, June 16, 2010

33.
CAP theorem
Pick two
• Consistent
• Available
• Partition tolerant
Wednesday, June 16, 2010

34.
Scale
How?
Wednesday, June 16, 2010

35.
Throw hardware
money at it!
Wednesday, June 16, 2010

36.
Par-ti-tion
Wednesday, June 16, 2010

37.
MySQL + Memcached
=
“square wheel”
cassandra
Wednesday, June 16, 2010

38.
How?
Wednesday, June 16, 2010

39.
Which one?
• document based
• column or key-value store
• advanced storage schemas
Wednesday, June 16, 2010

40.
Cassandra
• built by Facebook
• very high write throughput
• OLTP
• automatic horizontal scaling
• no single point of failure
Wednesday, June 16, 2010

41.
HBase
• Apache project
• Consistent
• Optimized for analytics (OLAP)
• Has single point of failure
Wednesday, June 16, 2010

42.
MongoDB
• probably easiest to move to from SQL
• document based
• on-demand queries
• automatic sharding
• no single-node durability
Wednesday, June 16, 2010

43.
CoachDB
• document based
• map-reduce javascript querying/filtering.
• has some replication and scaling problems
Wednesday, June 16, 2010

44.
REDIS
• key-value store
• advanced data types: list, set
• atomic operations
Wednesday, June 16, 2010

45.
Schema
Wednesday, June 16, 2010

46.
Users: {
vitaly: {
email: vitaly@astrails.com,
company: astrails,
password: secret
},
michael: {
email: michael@astrails.com,
company: astrails,
password: superduper
},
...
}
Wednesday, June 16, 2010

47.
UsersByEmail: {
"vitaly@astrails.com": "vitaly",
"michael@astrails.com": "michael",
...
}
Wednesday, June 16, 2010

48.
Migrations
Wednesday, June 16, 2010

49.
Start Slow
Wednesday, June 16, 2010

50.
NoSQL can help
You
Wednesday, June 16, 2010

51.
WTF is NoSQL?
Q &A
Vitaly Kushner
astrails.com
@astrails @vkushner
Wednesday, June 16, 2010