db.rst

Persona Database

Replication Topology

How to build a DB

Create an instance

• type : m1.large
• IAM Role : identity
• ami : any base AMI
• EBS optimized : enabled

Acquire a data volume or create one

• Size : 50GB
• IOPS : 500

Mount the volume

• create mount point

  mkdir /data

• edit /etc/fstab (in this example the volume is identified as /dev/xvdj1)

  /dev/xvdj1 /data ext3 defaults 0 2
  

• mount /data

Provisiong the host

• install chef
• populate /etc/chef/node.json

Update slaves

If it's a master, update the slaves /etc/chef/node.json to reflect the new master IP

CHANGE MASTER TO MASTER_HOST = '1.2.3.4', MASTER_USER = 'replication-user-name', MASTER_PASSWORD = 'replication-password';