Status: Experimental
type: faas
Description: A serverless instance.
| Attribute | Type | Description | Examples | Required |
|---|---|---|---|---|
faas.name |
string | The name of the function being executed. | my-function |
Yes |
faas.id |
string | The unique ID of the function being executed. [1] | arn:aws:lambda:us-west-2:123456789012:function:my-function |
Yes |
faas.version |
string | The version string of the function being executed as defined in Version Attributes. | 2.0.0 |
No |
faas.instance |
string | The execution environment ID as a string. | my-function:instance-0001 |
No |
faas.max_memory |
int | The amount of memory available to the serverless function in MiB. [2] | 128 |
No |
[1]: For example, in AWS Lambda this field corresponds to the ARN value, in GCP to the URI of the resource, and in Azure to the FunctionDirectory field.
[2]: It's recommended to set this attribute since e.g. too little memory can easily stop a Java AWS Lambda function from working correctly. On AWS Lambda, the environment variable AWS_LAMBDA_FUNCTION_MEMORY_SIZE provides this information.
Note: The resource attribute faas.instance differs from the span attribute faas.execution. For more information see the Semantic conventions for FaaS spans.