CODEWITHSUNDEEP
amazon-web-services
Jijina
Jijina

Reputation: 71

AWS Application Load balancer - HTTPCode_ELB_4XX_Count vs HTTPCode_Target_4XX_Count?

What is the actual difference between HTTPCode_ELB_4XX_Count and HTTPCode_Target_4XX_Count?

Could understand that HTTPCode_ELB_4XX_Count is based on http code returned by ELB and HTTPCode_Target_4XX_Count is based on http code returned by target. Still not able to understand how to analyze and troubleshoot the count for each metrics?

Is this count depended on health check failure?

Upvotes: 5

Views: 12137

Answers (1)

user2918381
user2918381

Reputation: 71

Based on the doc: https://docs.aws.amazon.com/elasticloadbalancing/latest/application/load-balancer-cloudwatch-metrics.html

The answer above seems wrong, should be:

  • HTTPCode_ELB_4XX_Count - This is the number of 4XX errors that are returned from the ELB.
  • HTTPCode_Target_4XX_Count - This is simply a 4XX error returned from the application servers.

Upvotes: 7

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