AWS Dynamo DB

• Refer Here for the Dynamo DB Usage guide.
• This is fully managed NoSQL Database from AWS.
• There are following types of NoSQL Databases
  • Document Databases
  • Key Value Database
  • Graph Databases
• Generally NoSQL Databases are designed to scale.
• Dynamo DB has a table and table will have items (documents/records)
• Creating a Dynamo Db Table
  
  
  
  
• Refer Here for dynamo db sdks and Refer Here for some sample code.
• Activities for Operations:
  • Make Table Global
  • Setting Backups
  • Performing Restores
  • Import and Export from/to S3
  • Cost & Performance Optimizations.
• Activity: Try to Create two estimates for Dynamo db table with
  • 100 GB Storage
  • 5 GB Storage
• From the observations, AWS Dynamo db on-demand cost contributes of
  • storage
  • Read/Write Counts per million
• What is Write Units and Read Units.
• NoSQL Databases have two ways
  • Where we specify instance sizes ( vCPU, RAM)
  • Where we don’t specify instance classes and specify some write/read units