Lambda

Question 1

Benefits and Drawbacks

Answer 1

Benefits

• costs
• managing machines
• service integrations
• scaling

Drawbacks

• debugging
• control

Question 2

Considerations before using Lambda

Answer 2

• Language - Python 2.7, Nodejs, Java 8, C#
• Code Size Limitations - 250MB
• Time Limitations - 300sec
• Concurrent Functions - 100
• Memory - 128 MB - 1.5 MB
• Need to provide access to your VPC
• It will run on AWS Linux, so test it on a similar machine prior to deployment

Cannot use Lambda if you process is:

1. Long running
2. Memory intensive
3. Not Event driven

Question 3

What a Lamba function needs to execute

Answer 3

• Code + external libraries
• HTML files
• Access keys
• Credentials to other AWS services