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33. What can you do with CloudWatch metrics?

CloudWatch is the main Observability tool in AWS and it offers a wide range of features: logs, metrics, dashboards, alarms and even events (recently moved into EventBridge). In this episode we are going to focus on CloudWatch metrics. We are going to discuss the characteristics of metrics in CloudWatch: namespaces, dimensions, units and more. What metrics you get out of the box and how to create your own. How to access and explore metrics. Finally we will compare CloudWatch to other providers like DataDog, New Relic, Honeycomb and Grafana + Prometheus and try to assess whether CloudWatch is enough or if you need to use other third-party services. ⏱ Timestamps: 00:00 Intro 01:43 What a metric is in CloudWatch 04:00 Different types of metrics: built-in metrics & custom metrics 09:37 How to access metrics 12:27 The 1 second granularity pitfall 13:44 Data retention based on granularity 16:40 How to create custom metrics 17:00 The PutMetricData API 18:39 EMF: Embedded Metric Format 24:20 CloudWatch Metrics pricing 26:25 Metrics Stream 28:10 Should you use CloudWatch metrics or something else? 32:16 Closing In this episode, we mentioned the following resources: AWS Bites EventBridge episode:    • 23. What’s the big deal with EventBri...   How to send Gzipped requests with boto3 (which uses the PutMetricsData API as an example): https://loige.co/how-to-send-gzipped-... CloudWatch service quota: https://docs.aws.amazon.com/AmazonClo... CloudWatch metrics stream for DataDog: https://www.datadoghq.com/blog/amazon... You can listen to AWS Bites wherever you get your podcasts: Apple Podcasts: https://podcasts.apple.com/us/podcast... Spotify: https://open.spotify.com/show/3Lh7Pzq... Google: https://podcasts.google.com/feed/aHR0... Breaker: https://www.breaker.audio/aws-bites RSS: ​​https://anchor.fm/s/6a3312a0/podcast/rss Do you have any AWS questions you would like us to address? Leave a comment here or connect with us on Twitter:   / eoins     / loige   #aws #metrics #cloudwatch