Cloudwatch Log Insights snippet that returns the number of cold starts and init duration.
Uses CloudWatch Insights to query a given log group and returns the number of Lambda cold starts and the init duration bucketed by 5 minutes.
filter @type="REPORT" and ispresent(@initDuration)
| stats count() as coldStarts, avg(@initDuration), min(@initDuration), max(@initDuration) by bin(5m)
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Learn more about Cloudwach Logs Insights.
Running the CloudWatch snippet
Click on the button below to open up the snippet directly into your AWS account.
Manually running the CloudWatch snippet
1. Open CloudWatch console
2. Select Logs, and then choose Logs Insights.
3. In the Select log group(s) drop down, choose one or more log groups to query.
4. Copy snippet into query text area.
5. Click "Run Query"
Additional resources
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