As a speaker at Cassandra Summit 2015, my slides on reporting from trenches. My session on using cassandra surely but make sure you use it effectively. Early morning, and still full house.fully awake great audience too.but if you missed it, you missed it.slideshare can’t undo but here's it anyway :-) [moved from my peas2bees unofficial slideshare account; with side effects of loss of stats]

1. Rekha Joshi
Intuit, Inc.
Reporting From Trenches:
Using Cassandra Effectively!

2. Who Am I?
Staff Engineer at Intuit Inc.
Oreilly Certified Apache Cassandra Professional

3. Good Software?

4. And a Truly Successful Software?

5. All This Data!!!!!!!!!!

6. Can I Lift This Alone?

7. Need For Speed

8. Cassandra,who?
Cassandra is a Java based
NoSQL, linearly scalable, best in
class tunable performance,
fault tolerant, distributed,
masterless, time series
database.

9. DynamoDB
(Amazon)
Big Table
(Google)
Cassandra
Inherits data distribution Inherits data model
Masterless Architecture
Linear Scalability
Tunable Consistency/Performance
Application
Query
Access Patterns
influencing influencing
Cassandra: The Hybrid Kid has the Edge!

10. Intuit And Cassandra
Cassandra = Intuit Technology Standard of Choice
for NoSQL Distributed Database

11. Intuit On Mission

12. Personalized AB Testing Platform

13. Advanced Security
Analytics Options
Advanced Tools
Cassandra And DataStax Enterprise

14. Your Worries?

15. Fantasy And Engineering Fantasy

16. Application
live on
internal
network
Blank
Slate
Application
live on AWS
Security
approved
Data
Security,
Encryption
System
happy,
load
tested,
multiple
releases,
customers
happy
Learnings
– How?
Why?
Successful
Mini Peak
Traffic,
Paranoid
Monitoring
Application
releases
use cases,
Refactorin
g Data
Model,
Excellent
Peak Tax
season!!!
Oct
Start
Oct
End
Nov Dec AprMarFebJan
Trusting -> Paranoid -> Seasoned

17. Garbage Collection Issue

18. Clock Issue

19. Understand the Node Ring
Nodetool status
Nodetool ring
Nodetool info
Nodetool cfstats
Nodetool tpstats
Repeat after me: Cassandra is a Java based NoSQL linearly
scalable, best in class tunable performance, fault tolerant,
distributed, masterless, time series database.

20. What If A Node Goes Down?

21. Tuning The Application
Refactor data model
Revisit the usage access patterns
Paranoid Monitoring
Repeat after me: Cassandra is a Java based NoSQL linearly
scalable, best in class tunable performance, fault
tolerant, distributed, masterless, time series database.

22. Tuning For Reads

23. Tuning For Writes

24. Tuning The System

25. Little Talked Aspect Of The Pareto Principle!

26. Heavy Lifting? Easy!

27. Thank You!
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