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Load Testing Guido Serra Nokia Berlin

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Why did it broke?

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As QA, act like Cassandra…

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USER BEHAVIOUR MODEL Create a...

5 © 2010 Nokia DevOpsDays.org / 2010-09-15 / Guido Serra

MAP/REDUCE ? Or dig the logs...

6 © 2010 Nokia DevOpsDays.org / 2010-09-15 / Guido Serra

DIVIDE ET IMPERA Go through „test highlighted“ components...

7 © 2010 Nokia DevOpsDays.org / 2010-09-15 / Guido Serra

SINGLE COMPONENT TESTING

Dive into the root cause...

8 © 2010 Nokia DevOpsDays.org / 2010-09-15 / Guido Serra

FUNCTIONAL Acceptance, regression testing and monitoring

9 © 2010 Nokia DevOpsDays.org / 2010-09-15 / Guido Serra

NON-FUNCTIONAL Load and performance testing

10 © 2010 Nokia DevOpsDays.org / 2010-09-15 / Guido Serra

RUSH HOUR NIGHTMARE Ramp up tests

11 © 2010 Nokia DevOpsDays.org / 2010-09-15 / Guido Serra

HOW LONG WILL IT SURVIVE? Stability tests

12 © 2010 Nokia DevOpsDays.org / 2010-09-15 / Guido Serra

WHO‘S TAKING SO LONG? Controlled environment

13 © 2010 Nokia DevOpsDays.org / 2010-09-15 / Guido Serra

METRICS! Garbage collector, net&disk I/O, CPU

14 © 2010 Nokia DevOpsDays.org / 2010-09-15 / Guido Serra

DON‘T ADD MORE MACHINES! The load testing software needs to scale properly...

15 © 2010 Nokia DevOpsDays.org / 2010-09-15 / Guido Serra

GRINDER, ON SOURCEFORGE Reuse Junits, small adaptation... u can do L&P testing

16 © 2010 Nokia DevOpsDays.org / 2010-09-15 / Guido Serra

ACTIVEMQ, LDAP, JDBC, ... What can I do with Grinder? Test whatever has a Java client...

17 © 2010 Nokia DevOpsDays.org / 2010-09-15 / Guido Serra

„HTTP QUALITY ASSURANCE TOOLKIT“ ...GRINDER BASED

Why not standardize to the HTTP protocol? Maybe with config files!

18 © 2010 Nokia DevOpsDays.org / 2010-09-15 / Guido Serra

HTTP-QAT: WHAT CAN IT DO? Statistically distributed scenario for L&P, or monitoring with Nagios

19 © 2010 Nokia DevOpsDays.org / 2010-09-15 / Guido Serra

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