cloudwatch

cloudwatch

1. monitor

   • compute
     • autoscaling groups load balancers route 53 health
   • storage/delivery
     • ebs storage gateways cloudfront
   • database/analytics
   • misc
     • sns sqs opworks cloudwatch logs billing

2. host level metrics

   • cpu utilization
   • network throughput
   • disk io
   • status check for health

3. intervals

   • default: 5 min detailed: 1 min

4. GetMetricStatistics API

5. data stored indefinitely in s3 by default

   • can retrieve after termination

6. service side intervals

   • usually 1 min can be 3-5 custom metric min granularity is 1 min

7. alarms

   • monitor cloudwatch metric: ec2 cpu util, ecb latency, bills can set thresholds and actions

8. cloudtrail

   • monitors api calls

9. aws config

   • record state of environment, notify of changes