The ABCs of Scaling MongoDB

The ABCs ofSCALING MONGODB

@ethangunderson

Hiring

ChicagoDBNext Meeting 5/16 chicagodb.com

Questions?Comments?Shout Out!

“Stack Overﬂow Makes Slow Pages100x Faster By Simple SQL Tuning“

A is forscale After optimization

Any form of multiple node scalingcauses pain

Query Optimization

Slow query log

Restrict ﬁelds

Remove redundant indexes

Use covered indexes

More RAM!

The sad truth is, this will be enoughfor the majority of websites

B is forreplica sets are Bitchin’

WritesReads

Writes

Reads Writes

Promoted to master

Writes/Reads

Comes back as a slave

C is forstrong Consistency throughauto sharding

Reads Writes

{ ʻusernameʼ: ʻethanʼ, ʻageʼ: 23 }{ ʻusernameʼ: ʻbrianʼ, ʻageʼ: 70 }{ ʻusernameʼ: ʻmikeʼ, ʻageʼ: 26 }{ ʻusernameʼ: ʻdaveʼ, ʻageʼ: 40 }{ ʻusernameʼ: ʻzackʼ, ʻageʼ: 12 }

Reads / Writes[a - d] [i - m] [s-v][e - h] [n - r] [w-z]

Reads / Writes [a - d] [i - m] [s-v][e - h] [n - r] [w-z]

Reads / Writes [a - d] [s-v][e - h] [i - m] [w-z] [n - r]

Reads / Writes [i - m] [s-v][a - d] [n - r] [w-z] [e - h]

Thanks!

The ABCs of Scaling MongoDB

by Ethan Gunderson on May 09, 2011

Accessibility

Categories

Tags

Upload Details

Usage Rights

Statistics

The ABCs of Scaling MongoDB — Presentation Transcript