Handling Data in Mega Scale Web Systems

Vineet Gupta | GM – Software Engineering | Directi http://www.vineetgupta.com Licensed under Creative Commons Attribution Sharealike Noncommercial Intelligent People. Uncommon Ideas.

[object Object],[object Object],[object Object],[object Object],Source: http://highscalability.com/digg-architecture

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Source: http://www.royans.net/arch/2007/10/25/scaling-technorati-100-million-blogs-indexed-everyday/

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Source: http://mysqldba.blogspot.com/2008/04/mysql-uc-2007-presentation-file.html

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Source: http://highscalability.com/ebay-architecture/

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Source: http://highscalability.com/google-architecture/

[object Object],[object Object],[object Object],[object Object],[object Object]

Host App Server DB Server RAM CPU CPU CPU RAM RAM

Sunfire X4640 M2 8 x 6-core 2.6 GHz $ 27k to $ 170k PowerEdge R200 Dual core 2.8 GHz Around $ 550

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

T1, T2, T3, T4 App Layer T1, T2, T3, T4 T1, T2, T3, T4 T1, T2, T3, T4 T1, T2, T3, T4 ,[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Master App Layer Slave Slave Slave Slave ,[object Object],[object Object],[object Object]

Master App Layer Master Slave Slave Slave ,[object Object],[object Object],[object Object]

Write Read Write Read Write Read Write Read Write Read Write Read Write Read ,[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

T3 App Layer T4 T5 T2 T1 ,[object Object],[object Object]

T3 App Layer T4 T5 T2 T1 First million rows T3 T4 T5 T2 T1 Second million rows T3 T4 T5 T2 T1 Third million rows

Source: http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.20.1495

[object Object],[object Object],[object Object],Emp # Emp Name Mgr # Mgr Name Emp Phone Mgr Phone 47 Joe 13 Sam 5-1234 6-9876 18 Sally 38 Harry 3-3123 5-6782 91 Pete 13 Sam 2-1112 6-9876 66 Mary 02 Betty 5-7349 4-0101 Classic problem with de-normalization Can’t update Sam’s phone # since there are many copies De-normalization is OK if you aren’t going to update! Source: http://blogs.msdn.com/pathelland/

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Intelligent People. Uncommon Ideas. Licensed under Creative Commons Attribution Sharealike Noncommercial

Handling Data in Mega Scale Web Systems

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