BIG DATABIG DATA

"datasets that grow so large that they become

difficult to work with using relational

databases and within a tolerable elapsed time"

BIG DATA IS BIGBIG DATA IS BIG

LIKE, REALLY BIGLIKE, REALLY BIG

FACEBOOK: 140 BILLION PHOTOS

HUMAN GENOME: 3 BILLIONBASE PAIRS

GOOGLE: 50 BILLIONWEB PAGES

WORLDCAT: 1.5 BILLIONITEM RECORDS

NOT REALLYNOT REALLY

EUROPEANA: 20 MILLION(715K / COUNTRY)

LIBRARY OF CONGRESS:

1.9 MILLION

CANADIANA: 1 MILLION

LIBRARY AND ARCHIVES CANADA:

3.5 MILLION(ARCHIVAL DESCRIPTIONS)

BIG DATABIG DATAIS COMPLICATEDIS COMPLICATED

1966

1976

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≠

NOT REALLYNOT REALLY

ಠ_ಠ

SCALABILITYSCALABILITY

● ICA-AtoM (LAMP)

● BENCHMARK 3.5M RECORDS (current largest: < 100K)

● 100% OPEN SOURCE SOFTWARE

● COMMODITY HARDWARE

CAN WE DO IT?CAN WE DO IT?

WRITE SPEEDWRITE SPEED

READ SPEEDREAD SPEED

WRITE MEMORYWRITE MEMORY

READ MEMORYREAD MEMORY

NOSQL vs. SQLNOSQL vs. SQL(a.k.a. ODM vs. ORM)

● 4x - 10x FASTER

● 50% - 90% LESS MEMORY

RELATIONAL DATABASESSCALE WELL

IF YOUR DATAIS NOT HIERARCHICAL

SOLRSCALES WELL

IF YOU HAVE INFINITE RAM

BEWARE THEDOGMA OF SQL

NOSQL IS AVIABLE OPTION

THINK SIDEWAYS SCALE OUT →

THE CLOUD IS A LIETHE CLOUD IS A LIE

“big data is less about size, and more about

freedom”

open source tools+ distributed design= new opportunities