PHP Experience 2016 - IT Master

First 90ScalingWithMicroservice

This is our visionBuilding the foundation to Build a 3B Company by FY20

Agenda

+ What we call Microservices ?

+ Benefit and Challenge

+ Scaling in MercadoLivre

+ Lessons Learned

Microservicesis a new "tag" for things we are already doing.

This is our visionBuilding the foundation to Build a 3B Company by FY20

Vs

Monolithic vs Microservices

A Tiny Definition of Microservices

Small Autonomous services communicating with each other using language-agnostic APIs.

+ Different languages, databases, hardware ...

+ Each service can be deployed independently

+ The services are easy to replace

+ Improved fault isolation

Benefit

+ Operations Overhead

+ Avoid Nanoservice

+ Implicit Interfaces

+ Network communication

Challenge

Scaling in MercadoLivre

“Scalability Porn”

18.000.000 Request per minutes

400 Deploys per days

700 Developers in 6 development centers

20.000 Virtual servers

1.500 Physical servers

Microservices - API MercadoLibre

Services Communicate -> HTTP/REST with JSON

API Gateway -> NGINX

NGINX

User Service

Item Service

Categories Service

Lessonslearned

Cache everythingReuse HTTP headers

GET https://api.mercadolibre.com/sites/MLB

HTTP/1.1 200 OK

Cache-Control: max-age=60, stale-while-revalidate=240{........}

200 & 206 Partial ContentDesigned to worst-case

VIP

User Service

Reputation

Service

User Service

Reputation

Service

VIP

Online GET vs Background update Resources with few changes and many outbuildings

User Service

Item Service

Categories Services

Search Service

- Dump all categories- Update each 10 minutes

Duplicate DataEach department can have a copy of the data

POST Item

Item Service

Search Service

Moderation Service

Queue Service

Item DB

Item DB (partial copy)

Item DB (partial copy)

Thank You

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