AWS Classroom Series – 16/Sept/2020

First Weapon of John: CloudWatch

  • Cloudwatch will help john to monitor AWS resources & applications Preview
  • Cloudwatch is a metrics repository & AWS Services can add/send metrics into the repository or you can send custom metrics into repository Preview
  • Now we can retrieve statistics based on metrics. Using statistics we can create notifications for failures, warnings etc Preview

Terms in Cloudwatch

  • Metrics: Metric represents a time-ordered set of data points that are published to Cloudwatch.
  • Timestamp: Each metric will be associated with a timestamp
  • Namespace: Namespace is container for Cloudwatch metrics. You should specify the namespace for data point which you publish. AWS namespaces use the following naming conventions AWS/service Eg. AWS/EC2 Preview
  • Statistics: Data aggregations supported over specific periods of time. Lets look at the possible statistics
    • Minimum: lowest value observed during specific period
    • Maximum
    • Sum
    • Average
    • Sample Count: The number of data points used in this statistic
    • pNN.NN: The percentile
  • Alarm: We use alarms to automatically initiate actions (restart the machine, send an email/sms, call some code etc..).
  • Every Metric is one of
    • Standard Resolution: Metric data with granularity of one-minute
    • High Resolution: Metric data with granularity of one-second

Lets see the available Metrics

  • Login into AWS Console & Navigate to CloudWatch
  • Select the Metrics and Have a look at the Sections Preview Preview

Quick Exercise

  1. Create an ec2 instance and Navigate to the monitoring section Preview
  2. Select any graph and view in metrics Preview Preview

Pricing of Amazon CloudWatch

Free tier usage tracking

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