Duplicate Metrics for Lambda function

[pratikgedia]

Is there an existing issue for this?

• I have searched the existing issues

Current Behavior

Version :: v0.33.0-alpha
v0.40.0-alpha

aws_lambda_invocations_sum{account_id="072xxxx", dimension_FunctionName="authorizer-function-AuthorizerFunction-xxxxxxxx", dimension_Resource="authorizer-function-AuthorizerFunction-xxxxxxxx", instance="yace:5000", job="yace", name="arn:aws:lambda:eu-west-2:oxxxxxx:function:authorizer-function-AuthorizerFunction-xxxxxxxx", region="eu-west-2", tag_Environment="Production"}
741
aws_lambda_invocations_sum{account_id="072xxxxx", dimension_FunctionName="authorizer-function-AuthorizerFunction-xxxxxxxx", instance="yace:5000", job="yace", name="arn:aws:lambda:eu-west-2:o7xxxxxxx:function:authorizer-function-AuthorizerFunction-xxxxxxxx", region="eu-west-2", tag_Environment="Production"}
742

Expected Behavior

aws_lambda_invocations_sum{account_id="o7xxxxxxx", dimension_FunctionName="authorizer-function-AuthorizerFunction-xxxxxxxx", dimension_Resource="authorizer-function-AuthorizerFunction-xxxxxxxx", instance="yace:5000", job="yace", name="arn:aws:lambda:eu-west-2:o7xxxxxxx:function:authorizer-function-AuthorizerFunction-xxxxxxxx", region="eu-west-2", tag_Environment="Production"}
741

Steps To Reproduce

Yace Config for pulling Lambda Metrics

...

• type: lambda
  regions:
  - eu-west-2
  searchTags:
  - key: Environment
  value: Production
  metrics:
  - name: Duration
  statistics:
  - Sum
  - Maximum
  - Minimum
  - Average
  period: 300
  length: 600
  - name: Invocations
  statistics:
  - Sum
  period: 300
  length: 600
  - name: Errors
  statistics:
  - Sum
  period: 60
  length: 600
  - name: ConcurrentExecutions
  statistics:
  - Maximum
  period: 300
  length: 600

Anything else?

No response

[tbondarchuk]

That's because Lambda metrics have two dimensions, FunctionName and Resource and sometimes it's both for one lambda, sometimes it's only one, no idea why.
AWS docs
cli to check: aws cloudwatch list-metrics --namespace AWS/Lambda --metric-name Errors

Can be fixed by limiting yace to single dimension using dimensionNameRequirements like follows:

      jobs:
      - regions:
        - eu-west-1
        type: lambda
        period: 300
        length: 3600
        dimensionNameRequirements:
          - FunctionName
        metrics:
          - name: Errors
            statistics:
            - Sum