web scale computing - the endhiran way

© 2003-10, OrangeScape Technologies Limited. Confidential 1

Mani DoraisamyChief Technology Officer, OrangeScape


What is Web scale computing?

A system which is Highly Available, Reliable, Transparent, High Performance, Scalable, Accessible, Secure, Usable, InexpensiveHas artificial intelligence And human emotions

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Download entire web onto a computer!

After a year, had some portion of it!(A healthy disregard for the impossible)


Learning to count!

PR(A) = (1-d) + d (PR(T1)/C(T1) + ... + PR(Tn)/C(Tn))

Citations are important(How long does it take to go around web counting links?)


BackRub to 10100

When it is free, we ask for more(How do we make it inexpensive for large user base?)


Adding it up!

Download the entire web

Learning to count

Serving 10100 users

Total

= Storage (Massive)

= Performance (Massive)

= Scalability (Massive)

= Web scale


Storage: When ACID becomes BASE

Distributed storage:Why cant we be more optimistic, instead of pessimistic?


Performance: Divide and Conquer

8th standard math:One man can do a job in 2 days, and another can do it in 2 days. If they work together,in how many days will they finish the work?

Call it Burst compute/Fan out (with Map/reduce), if you want to be a Geek!


Scalability: Creating an indestructible monster

Stateless - Highly Available with Transparent failoverIdempotency – Being a Ghazni!


Summary

Chitti was right:You cant build one. We need many i.e. distributed systems.


Shoot your questions!

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