Just like you! April, 2008

We wanted to INNOVATE

He wanted cheaper ways to sell hot dogs Merchant

We gave him low fees and no fixed cost Merchant

He wanted convenience Customer

We gave him confirmation at his own cell phone Merchant Customer

We gave him options to pay Merchant Customer

We gave him safety Merchant Customer

INNOVATE: Bring something new to an environment Merchant Customer

Then ... he wanted innovation in his business web merchant hotdog.com

We gave him simplicity web merchant hotdog.com

We gave him security web merchant hotdog.com Customer

INNOVATE: Produce something never done before web merchant hotdog.com Customer

Many wanted the same for their businesses

Many wanted the advantages of the transaction

A “whole lot” is happening every day

INNOVATE ... but DELIVER!

“No free lunch!” We wanted to Innovate, but we had to DELIVER

We had to choose right Start-up Agility Rapid growth Low cost Reliable Good history Open source Solid company On the Edge Cluster MySQL Carrier Grade

We had to scale wisely Internet GSM Network Web process Data center 01 Replication GSM Network Transactions

We had to scale wisely Internet GSM Network Transactions Web process Data center 02 Replication Data center 01

Our Data Center structure We had to build independency GSM Network Internet Our Data Center structure

Only necessary tables for authorization We had to use it to our advantage Reports Authorization CRM Credit Billing Proposal Collection Authorization R/W Only necessary tables for authorization R/W 26 SQL nodes 8 SQL nodes Replication 6 Data nodes 4 Data nodes Replication Replication R MyIsam Reports Data Center 02

We had to think towards the data 26 SQL nodes (also used to store historic data) 70% of the data Read only MyIsam 6 Data nodes (only current data) 30% of the data Read / Write Cluster

DELIVER: provide something promised DH&C Data Center 01 BRT Data Center 02 20 miles 10 MB METRO ETHERNET Master Slave Slave Master Master Slave Data Center 01 Data Center 02 Slave Master 2 MB MPLS

“A vision without action We innovated and delivered is just a Dream!” We innovated and delivered but it had to be REAL

Start-up reality: scalability ...we just replace it. If something goes wrong with a server... ...and the same happened with our servers. The number of clients started to grow...

Credit card reality: availability and performance working 24 x 7 # transactions per hour = 1040 # transactions per month = 750,000 amount per month = R$ 25,000,000.00 # proposals per month = 120,000 # proposals per day = 4,000 credit proposal troughput = 7 proposals per sec.

X X Financial transactions reality: reliability THAT`S WHAT WE USE Backup Database Lost Data Lost Business Backup Failed Restore X Replicated Database 0100011110 0101111000 0100011100 0100011110 0101111000 0100011100 0100011110 0101111000 0100011100 No lost data No lost business 0100011110 0101111000 0100011100 0100011110 0101111000 0100011100 X 0100011110 0101111000 0100011100 Failed Restore THAT`S WHAT WE USE

Start-up for credit service involving financial transactions REAL: something founded on practical matters Start-up for credit service involving financial transactions Scalability Availability MySQL Cluster 5.1 Carrier Grade Performance Reliability

We innovated, delivered and proved it real, but it was a CHALLENGE “No pain no gain!” We innovated, delivered and proved it real, but it was a CHALLENGE

and we still don’t have support contract What we’ve been through Totally possible Work Knowledge Consulting DATABASE TEAM DEVELOPMENT TEAM and we still don’t have support contract

What we’ve gotten from it High skilled team Freedom to create World Exposure MySQL Conference 2008

CHALLENGE: a stimulating situation

In the end ...

Some think it will INNOVATE

Others think it won’t be DELIVERED

Some may think it is UNREAL

Others understand the CHALLENGE

WE THINK IT IS A SUCCESS!