Oracle is a database. So is Cassandra. And that’s about it as far as how they are similar. How they are different though… well, that’s when things get good. Have you tried to scale your Oracle database to handle 1M simultaneous users (without ruining your mental health and close personal relationships)? How about creating 100% uptime with active-active datacenters? You don’t even want to think about it, do you? Spend some time with us to learn how Cassandra can make you into the database rockstar you know you are.

1. ©2015 DataStax Confidential. Do not distribute without consent.
@RachelPedreschi & @PatrickMcFadin
Rachel Pedreschi & Patrick McFadin
Evangelists for Apache Cassandra
Oracle to Cassandra Core Concepts Guide
Part 1: A new hope
1

2. We like to collect data
2

3. First data plateau
3

4. First database solution
4

5. You want a database?
5

6. Second data plateau
6

7. Second database solution
7

8. Then this happened
8

9. The database is the problem
9
The web site is SLOWWWW!!

10. 2005 - Thundering herds
10

11. June 29, 2007
11
Welcome to the third data plateau

12. Third data plateau

13. APACHE
CASSANDRA
Third database solution

14. Oracle Architecture

15. Oracle Architecture
More CPU
More memory
More disk ASM
DBRM
Scale

16. Oracle Architecture
More CPU
More memory
More disk
DBRM
TimesTen
Scale
Scale
ASM

17. Oracle Architecture
More CPU
More memory
More disk
DBRM
Clusterware
FAN
RAC
Cache Fusion
TimesTen
Scale
Scale
Scale
Uptime
ASM

18. Oracle Architecture
More CPU
More memory
More disk
DBRM
Clusterware
FAN
RAC
Golden Gate
Cache Fusion
TimesTen
Scale
Scale
Scale
Uptime
Uptime
ASM

19. Oracle Architecture
More CPU
More memory
More disk
DBRM
Clusterware
FAN
RAC
Data Guard
Golden Gate
Cache Fusion
Active?
Standby?
TimesTen
Scale
Scale
Scale
Uptime
Uptime
Uptime
ASM

20. Oracle Architecture
More CPU
More memory
More disk
DBRM
Clusterware
FAN
RAC
Data Guard
Golden Gate
Cache Fusion
Active?
Standby?
TimesTen
Scale
Hadoop
Scale
Scale
Uptime
Uptime
Uptime
ASM
ETL

21. Oracle Architecture
More CPU
More memory
More disk
DBRM
Clusterware
FAN
RAC
Data Guard
Golden Gate
Cache Fusion
Active?
Standby?
TimesTen
Scale
Hadoop
Scale
Scale
Uptime
Uptime
Uptime
ASM

23. 80
10
3050
70
60
40
20

24. 80
10
30
50
70
60
40
20

25. 80
8
32
56
72
64
48
16
24
4040
24

26. Application
hash(key) => token(43)
replication factor = 3
80
10
3050
70
60
40
20

27. Active - Active Datacenter Replication
Application
Data Center 1
hash(key) => token(43)
replication factor = 3
80
10
3050
70
60
40
20
Data Center 2
replication factor = 3
81
11
3151
71
61
41
21

28. 28
… … … …
… … … …
… … … …
… … … …
Node memory
Node file system
partition key1 first:Oscar last:Orange level:42
partition key2 first:Ricky last:Red
Memtable
Coordinator
CommitLog
AppendOnly
SSTables
Flush current state to SSTable
W
rite
<3, Betty, Blue, 63>
partition key3 first:Betty last:Blue level:63
Application
… … … …
… … … …
… … … …
… … … …
… … … …
… … … …
… … … …
… … … …
… … … …
… … … …
… … … …
… … … …
… … … …
… … … …
… … … …
… … … …

29. Look Familiar?

30. Ops Center

31. Backup and Restore

32. © 2014 DataStax Confidential. Do not distribute without consent.
Security in Cassandra
18
Cassandra
DataStax
Enterprise
Internal Authentication
Manages login IDs and
passwords inside the
database
Object Permission Management
Controls who has access to what
and who can do what in the
database
Client to Node Encryption
Protects data in flight to and
from a database cluster
External Authentication
Uses external security
software packages to control
security
Transparent Data Encryption
Encrypts data at rest
Data Auditing
Provides trail of who did and
looked at what/when

34. Dev Center

35. Integrated Analytics and Search, no ETL, one cluster
Application
OLTP with Cassandra
OLAP and Streaming
with Cassandra /Spark
Search with
Cassandra / Solr
Faceted
Search, Text
Mining, etc
BI Tools,
ODBC/ JDBC

36. So, where is the catch?

37. Oracle to Cassandra Core Concepts Guide Pt. 2
Third normal form? That’s so 20th century. Learn the newest techniques to make
your Cassandra database sing from the rafters in performance and scalability.
AND it uses concepts that you already know and apply every day. You can do this.
This is the must-see half hour of your professional life! These developers found a
new way to work with databases. First you will be shocked, then you will be
inspired!
Oracle to Cassandra Core Concepts Guide Pt. 3
Tired of timeouts? Cursing your cursors? Join the distributed revolution and bring
your dev team into application nirvana. You won’t believe how easy it is to be code
complete on your next big project. We will show you how to lead your devs away
from the clutches of the DBA and be in control of their own data destiny. Discover
the methodology that will make your Cassandra project epic.
Stay tuned!

38. RachelP50 or PatrickM50- 50% off Priority Pass
RachelPCert or PatrickMCert- 25% Certification