Monitoring

Question 1

What do AWS CW Alarms monitor?

Answer 1

CW Metrics

Question 2

What are the sources of CW Logs?

Answer 2

Systems, Applications, AWS Services

Question 3

What is an “event” in the CW Events sense?

Answer 3

A change in an AWS resource

Question 4

How to use automation to scale KDS Consumers by volume?

Answer 4

CW Metric: GetRecords.IteratorAgeMilliseconds —–> CW Alarm ———–> Scaling Event

“Iterator Age Milliseconds” measures difference between NOW and the oldest record in the stream

Question 5

What CW EC2 metrics are available for free? At what granularity are they free?

Answer 5

At 5-minute granularity, the following are free:
CPU Utilization
Disk:
ReadOps
Write Ops
Read Bytes
Write Bytes
Network
Packets In
Packets Out

To achieve 1-minute granularity, you must pay
For other, more granular metrics ——> CW Agent