Tracing reference

Akka can collect traces for observing the runtime behavior of your services.

These trace spans are available for export to external monitoring systems.

HTTP Endpoints

HTTP server span

This span represents an inbound HTTP request. Span kind:: server Akka span kind:: endpoint.request

Component attributes
Attribute Type Required Description

akka.component.description

string

Recommended: if available

User-defined description of the component.

akka.component.id

string

Yes

Unique identifier for the component instance.

akka.component.implementation.name

string

Recommended: if available

Fully qualified class name of the component implementation.

akka.component.name

string

Recommended: if available

User-defined name of the component.

akka.component.type

enum

Yes

The type of Akka component.
Endpoint attributes
Attribute Type Required Description

akka.endpoint.method

string

Yes

Name of the endpoint method being invoked.
Debug attributes
Attribute Type Required Description

akka.debug.auto

boolean

Conditionally required: when debug tracing is enabled

Whether debug mode was automatically enabled.

akka.debug.id

string

Conditionally required: when debug tracing is enabled

Debug identifier for correlating traces.
Http Debug attributes
Attribute Type Required Description

http.request.body.content

string

Conditionally required: when debug tracing is enabled

Captured content of the HTTP request body.

http.request.body.encoding

string

Conditionally required: when debug tracing is enabled

Encoding format of the captured request body.

http.request.body.type

string

Conditionally required: when debug tracing is enabled

The expected type used to deserialize the request body.

http.response.body.content

string

Conditionally required: when debug tracing is enabled

Captured content of the HTTP response body.

http.response.body.encoding

string

Conditionally required: when debug tracing is enabled

Encoding format of the captured response body.
OpenTelemetry semantic convention attributes
Attribute Type Required Description

error.type

string

Conditionally required: if and only if an error has occurred.

Describes the error condition, such as the HTTP status code.

http.request.method

string

Yes

HTTP request method.

http.response.status_code

int

Conditionally required: If and only if one was received/sent.

HTTP response status code.

http.route

string

Conditionally required: If and only if it’s available

The matched route template, e.g. /pets/id.

server.address

string

Recommended

The client-facing server hostname.

url.path

string

Recommended

The URI path component

url.query

string

Recommended

The URI query component

gRPC Endpoints

gRPC server span

This span represents an incoming gRPC server call. Span kind:: server Akka span kind:: endpoint.request

Component attributes
Attribute Type Required Description

akka.component.description

string

Recommended: if available

User-defined description of the component.

akka.component.id

string

Yes

Unique identifier for the component instance.

akka.component.implementation.name

string

Recommended: if available

Fully qualified class name of the component implementation.

akka.component.name

string

Recommended: if available

User-defined name of the component.

akka.component.type

enum

Yes

The type of Akka component.
Endpoint attributes
Attribute Type Required Description

akka.endpoint.method

string

Yes

Name of the endpoint method being invoked.
Debug attributes
Attribute Type Required Description

akka.debug.auto

boolean

Conditionally required: when debug tracing is enabled

Whether debug mode was automatically enabled.

akka.debug.id

string

Conditionally required: when debug tracing is enabled

Debug identifier for correlating traces.
Grpc Debug attributes
Attribute Type Required Description

grpc.input.message.content

string

Conditionally required: when debug tracing is enabled

Captured content of the gRPC input message (unary).

grpc.input.message.type

string

Conditionally required: when debug tracing is enabled

The fully qualified protobuf type name of the input message.

grpc.input.stream.message.content

string[]

Conditionally required: when debug tracing is enabled and input is streaming

Captured content of gRPC input stream messages.

grpc.input.streaming

boolean

Conditionally required: when debug tracing is enabled and input is streaming

Whether the input is a client stream.

grpc.output.message.content

string

Conditionally required: when debug tracing is enabled

Captured content of the gRPC output message (unary).

grpc.output.message.type

string

Conditionally required: when debug tracing is enabled

The fully qualified protobuf type name of the output message.

grpc.output.stream.message.content

string[]

Conditionally required: when debug tracing is enabled and output is streaming

Captured content of gRPC output stream messages.

grpc.output.streaming

boolean

Conditionally required: when debug tracing is enabled and output is streaming

Whether the output is a server stream.
OpenTelemetry semantic convention attributes
Attribute Type Required Description

error.type

string

Conditionally required: if and only if an error has occurred.

Describes the error condition, such as the gRPC status code.

rpc.method

string

Yes

The gRPC service and method name, e.g. com.example.MyService/MyMethod.

rpc.response.status_code

string

Conditionally required: if available.

The gRPC status code.

rpc.system.name

enum

Yes

The Remote Procedure Call (RPC) system.

server.address

string

Recommended

The client-facing server hostname.

MCP Endpoints

MCP server span

This span represents an incoming MCP server operation. Span kind:: server Akka span kind:: endpoint.request

Component attributes
Attribute Type Required Description

akka.component.description

string

Recommended: if available

User-defined description of the component.

akka.component.id

string

Yes

Unique identifier for the component instance.

akka.component.implementation.name

string

Recommended: if available

Fully qualified class name of the component implementation.

akka.component.name

string

Recommended: if available

User-defined name of the component.

akka.component.type

enum

Yes

The type of Akka component.
Debug attributes
Attribute Type Required Description

akka.debug.auto

boolean

Conditionally required: when debug tracing is enabled

Whether debug mode was automatically enabled.

akka.debug.id

string

Conditionally required: when debug tracing is enabled

Debug identifier for correlating traces.
Mcp Debug attributes
Attribute Type Required Description

mcp.request.content

string

Conditionally required: when debug tracing is enabled

Captured content of the MCP JSON-RPC request.

mcp.response.content

string

Conditionally required: when debug tracing is enabled

Captured content of the MCP JSON-RPC response.
OpenTelemetry semantic convention attributes
Attribute Type Required Description

error.type

string

Conditionally required: if and only if an error has occurred.

Describes the error condition.

gen_ai.operation.name

enum

Conditionally required: when applicable for the MCP method

The name of the operation being performed.

gen_ai.prompt.name

string

Conditionally required: When operation is related to a specific prompt.

The MCP prompt name.

gen_ai.tool.name

string

Conditionally required: When operation is related to a specific tool.

The MCP tool name.

jsonrpc.request.id

string

Recommended

A string representation of the id property of the request and its corresponding response.

mcp.method.name

enum

Yes

The name of the request or notification method.

mcp.resource.uri

string

Conditionally required: when applicable for the MCP method

The value of the resource uri.

rpc.response.status_code

string

Conditionally required: if available.

The gRPC status code for the MCP transport.

Agents

Agent command span

This span represents an agent command invocation. Span kind:: server Akka span kind:: agent.command

Component attributes
Attribute Type Required Description

akka.component.description

string

Recommended: if available

User-defined description of the component.

akka.component.id

string

Yes

Unique identifier for the component instance.

akka.component.implementation.name

string

Recommended: if available

Fully qualified class name of the component implementation.

akka.component.name

string

Recommended: if available

User-defined name of the component.

akka.component.type

enum

Yes

The type of Akka component.
OpenTelemetry semantic convention attributes
Attribute Type Required Description

gen_ai.agent.id

string

Recommended

The unique identifier of the GenAI agent.

gen_ai.agent.name

string

Recommended

Human-readable name of the GenAI agent provided by the application.

gen_ai.conversation.id

string

Conditionally required: when available

The unique identifier for a conversation (session, thread), used to store and correlate messages within this conversation.

gen_ai.operation.name

enum

Yes

The name of the operation being performed.

Agent content loading span

This span represents content loading within an agent invocation. Span kind:: internal Akka span kind:: agent.content.loading

Agent Content attributes
Attribute Type Required Description

akka.agent.content.kind

string

Yes

The kind of content being loaded.

akka.agent.content.loader.class

string

Recommended: if available

The class name of the content loader used.

akka.agent.content.size

int

Recommended: if available

The size of the loaded content in bytes.

akka.agent.content.uri

string

Yes

The URI of the content being loaded.
Component attributes
Attribute Type Required Description

akka.component.description

string

Recommended: if available

User-defined description of the component.

akka.component.id

string

Yes

Unique identifier for the component instance.

akka.component.implementation.name

string

Recommended: if available

Fully qualified class name of the component implementation.

akka.component.name

string

Recommended: if available

User-defined name of the component.

akka.component.type

enum

Yes

The type of Akka component.

Agent guardrail span

This span represents a guardrail evaluation within an agent invocation. Span kind:: internal Akka span kind:: agent.guardrail

Agent Guardrail attributes
Attribute Type Required Description

akka.agent.guardrail.category

string

Yes

The category of the guardrail being evaluated.

akka.agent.guardrail.name

string

Yes

The name of the guardrail being evaluated.

akka.agent.guardrail.result

enum

Yes

The result of a guardrail evaluation.
Component attributes
Attribute Type Required Description

akka.component.description

string

Recommended: if available

User-defined description of the component.

akka.component.id

string

Yes

Unique identifier for the component instance.

akka.component.implementation.name

string

Recommended: if available

Fully qualified class name of the component implementation.

akka.component.name

string

Recommended: if available

User-defined name of the component.

akka.component.type

enum

Yes

The type of Akka component.

Agent model call span

This span represents an LLM model call within an agent invocation. Span kind:: client Akka span kind:: agent.model.call

Component attributes
Attribute Type Required Description

akka.component.description

string

Recommended: if available

User-defined description of the component.

akka.component.id

string

Yes

Unique identifier for the component instance.

akka.component.implementation.name

string

Recommended: if available

Fully qualified class name of the component implementation.

akka.component.name

string

Recommended: if available

User-defined name of the component.

akka.component.type

enum

Yes

The type of Akka component.
OpenTelemetry semantic convention attributes
Attribute Type Required Description

gen_ai.conversation.id

string

Conditionally required: when available

The unique identifier for a conversation (session, thread), used to store and correlate messages within this conversation.

gen_ai.input.messages

any

Opt-in

The chat history provided to the model as an input.

gen_ai.operation.name

enum

Yes

The name of the operation being performed.

gen_ai.output.messages

any

Opt-in

Messages returned by the model where each message represents a specific model response (choice, candidate).

gen_ai.output.type

enum

Conditionally required: when applicable and if the request includes an output format.

Represents the content type requested by the client.

gen_ai.provider.name

enum

Yes

The Generative AI provider as identified by the client or server instrumentation.

gen_ai.request.max_tokens

int

Recommended

The maximum number of tokens the model generates for a request.

gen_ai.request.model

string

Conditionally required: If available.

The name of the GenAI model a request is being made to.

gen_ai.request.temperature

double

Recommended

The temperature setting for the GenAI request.

gen_ai.request.top_k

double

Recommended

The top_k sampling setting for the GenAI request.

gen_ai.request.top_p

double

Recommended

The top_p sampling setting for the GenAI request.

gen_ai.response.finish_reasons

string[]

Recommended

Array of reasons the model stopped generating tokens, corresponding to each generation received.

gen_ai.response.id

string

Recommended

The unique identifier for the completion.

gen_ai.response.model

string

Recommended

The name of the model that generated the response.

gen_ai.usage.input_tokens

int

Recommended

The number of tokens used in the GenAI input (prompt).

gen_ai.usage.output_tokens

int

Recommended

The number of tokens used in the GenAI response (completion).

Agent tool call span

This span represents a tool execution within an agent invocation. Span kind:: internal Akka span kind:: agent.tool.call

Component attributes
Attribute Type Required Description

akka.component.description

string

Recommended: if available

User-defined description of the component.

akka.component.id

string

Yes

Unique identifier for the component instance.

akka.component.implementation.name

string

Recommended: if available

Fully qualified class name of the component implementation.

akka.component.name

string

Recommended: if available

User-defined name of the component.

akka.component.type

enum

Yes

The type of Akka component.
Agent Mcp attributes
Attribute Type Required Description

akka.agent.mcp.endpoint

string

Conditionally required: when the tool is from an MCP endpoint

The MCP endpoint from which the tool was discovered.
OpenTelemetry semantic convention attributes
Attribute Type Required Description

gen_ai.operation.name

enum

Yes

The name of the operation being performed.

gen_ai.tool.call.id

string

Recommended

The tool call identifier.

gen_ai.tool.description

string

Recommended

The tool description.

gen_ai.tool.name

string

Conditionally required: When operation is related to a specific tool.

Name of the tool utilized by the agent.

gen_ai.tool.type

string

Recommended

Type of the tool utilized by the agent

Agent tool discovery span

This span represents MCP tool discovery within an agent invocation. Span kind:: internal Akka span kind:: agent.tool.discovery

Component attributes
Attribute Type Required Description

akka.component.description

string

Recommended: if available

User-defined description of the component.

akka.component.id

string

Yes

Unique identifier for the component instance.

akka.component.implementation.name

string

Recommended: if available

Fully qualified class name of the component implementation.

akka.component.name

string

Recommended: if available

User-defined name of the component.

akka.component.type

enum

Yes

The type of Akka component.
Agent Mcp attributes
Attribute Type Required Description

akka.agent.mcp.endpoint

string

Conditionally required: when the tool is from an MCP endpoint

The MCP endpoint from which the tool was discovered.

Agents (OpenInference)

Agent command span (OpenInference)

This span represents an agent command invocation with OpenInference attributes. Span kind:: server Akka span kind:: agent.command

Component attributes
Attribute Type Required Description

akka.component.description

string

Recommended: if available

User-defined description of the component.

akka.component.id

string

Yes

Unique identifier for the component instance.

akka.component.implementation.name

string

Recommended: if available

Fully qualified class name of the component implementation.

akka.component.name

string

Recommended: if available

User-defined name of the component.

akka.component.type

enum

Yes

The type of Akka component.
Open Inference attributes
Attribute Type Required Description

open_inference.session.id

string

Recommended: if available

The session identifier for the conversation.

open_inference.span.kind

enum

Yes

The kind of span in OpenInference semantic conventions.
Open Inference Agent attributes
Attribute Type Required Description

open_inference.agent.name

string

Recommended: if available

The name of the agent.
OpenTelemetry semantic convention attributes
Attribute Type Required Description

gen_ai.agent.id

string

Recommended

The unique identifier of the GenAI agent.

gen_ai.agent.name

string

Recommended

Human-readable name of the GenAI agent provided by the application.

gen_ai.conversation.id

string

Conditionally required: when available

The unique identifier for a conversation (session, thread), used to store and correlate messages within this conversation.

gen_ai.operation.name

enum

Yes

The name of the operation being performed.

Agent guardrail span (OpenInference)

This span represents a guardrail evaluation with OpenInference attributes. Span kind:: internal Akka span kind:: agent.guardrail

Agent Guardrail attributes
Attribute Type Required Description

akka.agent.guardrail.category

string

Yes

The category of the guardrail being evaluated.

akka.agent.guardrail.name

string

Yes

The name of the guardrail being evaluated.

akka.agent.guardrail.result

enum

Yes

The result of a guardrail evaluation.
Component attributes
Attribute Type Required Description

akka.component.description

string

Recommended: if available

User-defined description of the component.

akka.component.id

string

Yes

Unique identifier for the component instance.

akka.component.implementation.name

string

Recommended: if available

Fully qualified class name of the component implementation.

akka.component.name

string

Recommended: if available

User-defined name of the component.

akka.component.type

enum

Yes

The type of Akka component.
Open Inference attributes
Attribute Type Required Description

open_inference.session.id

string

Recommended: if available

The session identifier for the conversation.

open_inference.span.kind

enum

Yes

The kind of span in OpenInference semantic conventions.
Open Inference Agent Guardrail attributes
Attribute Type Required Description

open_inference.agent.guardrail.category

string

Recommended: if available

The category of the guardrail being evaluated.

open_inference.agent.guardrail.name

string

Recommended: if available

The name of the guardrail being evaluated.

Agent model call span (OpenInference)

This span represents an LLM model call with OpenInference attributes. Span kind:: client Akka span kind:: agent.model.call

Component attributes
Attribute Type Required Description

akka.component.description

string

Recommended: if available

User-defined description of the component.

akka.component.id

string

Yes

Unique identifier for the component instance.

akka.component.implementation.name

string

Recommended: if available

Fully qualified class name of the component implementation.

akka.component.name

string

Recommended: if available

User-defined name of the component.

akka.component.type

enum

Yes

The type of Akka component.
Open Inference attributes
Attribute Type Required Description

open_inference.session.id

string

Recommended: if available

The session identifier for the conversation.

open_inference.span.kind

enum

Yes

The kind of span in OpenInference semantic conventions.
Open Inference Io attributes
Attribute Type Required Description

open_inference.input.mime_type

string

Recommended: if available

The MIME type of the input.

open_inference.input.value

string

Recommended: if available

The input value.

open_inference.output.mime_type

string

Recommended: if available

The MIME type of the output.

open_inference.output.value

string

Recommended: if available

The output value.
Open Inference Llm attributes
Attribute Type Required Description

open_inference.llm.input_messages

string

Recommended: if available

JSON string of the input messages.

open_inference.llm.invocation_parameters

string

Recommended: if available

JSON string of the invocation parameters.

open_inference.llm.model_name

string

Recommended: if available

The name of the LLM model.

open_inference.llm.output_messages

string

Recommended: if available

JSON string of the output messages.

open_inference.llm.provider

string

Recommended: if available

The LLM provider name.

open_inference.llm.response.finish_reasons

string[]

Recommended: if available

The finish reasons from the LLM response.

open_inference.llm.system

string

Recommended: if available

The LLM system being used.

open_inference.llm.token_count.completion

int

Recommended: if available

The number of tokens in the completion.

open_inference.llm.token_count.prompt

int

Recommended: if available

The number of tokens in the prompt.

open_inference.llm.token_count.total

int

Recommended: if available

The total number of tokens.
OpenTelemetry semantic convention attributes
Attribute Type Required Description

gen_ai.conversation.id

string

Conditionally required: when available

The unique identifier for a conversation (session, thread), used to store and correlate messages within this conversation.

gen_ai.input.messages

any

Opt-in

The chat history provided to the model as an input.

gen_ai.operation.name

enum

Yes

The name of the operation being performed.

gen_ai.output.messages

any

Opt-in

Messages returned by the model where each message represents a specific model response (choice, candidate).

gen_ai.output.type

enum

Conditionally required: when applicable and if the request includes an output format.

Represents the content type requested by the client.

gen_ai.provider.name

enum

Yes

The Generative AI provider as identified by the client or server instrumentation.

gen_ai.request.max_tokens

int

Recommended

The maximum number of tokens the model generates for a request.

gen_ai.request.model

string

Conditionally required: If available.

The name of the GenAI model a request is being made to.

gen_ai.request.temperature

double

Recommended

The temperature setting for the GenAI request.

gen_ai.request.top_k

double

Recommended

The top_k sampling setting for the GenAI request.

gen_ai.request.top_p

double

Recommended

The top_p sampling setting for the GenAI request.

gen_ai.response.finish_reasons

string[]

Recommended

Array of reasons the model stopped generating tokens, corresponding to each generation received.

gen_ai.response.id

string

Recommended

The unique identifier for the completion.

gen_ai.response.model

string

Recommended

The name of the model that generated the response.

gen_ai.usage.input_tokens

int

Recommended

The number of tokens used in the GenAI input (prompt).

gen_ai.usage.output_tokens

int

Recommended

The number of tokens used in the GenAI response (completion).

Agent tool call span (OpenInference)

This span represents a tool execution with OpenInference attributes. Span kind:: internal Akka span kind:: agent.tool.call

Component attributes
Attribute Type Required Description

akka.component.description

string

Recommended: if available

User-defined description of the component.

akka.component.id

string

Yes

Unique identifier for the component instance.

akka.component.implementation.name

string

Recommended: if available

Fully qualified class name of the component implementation.

akka.component.name

string

Recommended: if available

User-defined name of the component.

akka.component.type

enum

Yes

The type of Akka component.
Open Inference attributes
Attribute Type Required Description

open_inference.session.id

string

Recommended: if available

The session identifier for the conversation.

open_inference.span.kind

enum

Yes

The kind of span in OpenInference semantic conventions.
Open Inference Tool attributes
Attribute Type Required Description

open_inference.tool.description

string

Recommended: if available

The description of the tool.

open_inference.tool.name

string

Recommended: if available

The name of the tool.

open_inference.tool_call.id

string

Recommended: if available

The identifier of the tool call.
Agent Mcp attributes
Attribute Type Required Description

akka.agent.mcp.endpoint

string

Conditionally required: when the tool is from an MCP endpoint

The MCP endpoint from which the tool was discovered.
OpenTelemetry semantic convention attributes
Attribute Type Required Description

gen_ai.operation.name

enum

Yes

The name of the operation being performed.

gen_ai.tool.call.id

string

Recommended

The tool call identifier.

gen_ai.tool.description

string

Recommended

The tool description.

gen_ai.tool.name

string

Conditionally required: When operation is related to a specific tool.

Name of the tool utilized by the agent.

gen_ai.tool.type

string

Recommended

Type of the tool utilized by the agent

Agent tool discovery span (OpenInference)

This span represents MCP tool discovery with OpenInference attributes. Span kind:: internal Akka span kind:: agent.tool.discovery

Component attributes
Attribute Type Required Description

akka.component.description

string

Recommended: if available

User-defined description of the component.

akka.component.id

string

Yes

Unique identifier for the component instance.

akka.component.implementation.name

string

Recommended: if available

Fully qualified class name of the component implementation.

akka.component.name

string

Recommended: if available

User-defined name of the component.

akka.component.type

enum

Yes

The type of Akka component.
Open Inference attributes
Attribute Type Required Description

open_inference.session.id

string

Recommended: if available

The session identifier for the conversation.

open_inference.span.kind

enum

Yes

The kind of span in OpenInference semantic conventions.
Agent Mcp attributes
Attribute Type Required Description

akka.agent.mcp.endpoint

string

Conditionally required: when the tool is from an MCP endpoint

The MCP endpoint from which the tool was discovered.

Workflows

Workflow command span

This span represents a workflow command invocation. Span kind:: server Akka span kind:: workflow.command

Component attributes
Attribute Type Required Description

akka.component.description

string

Recommended: if available

User-defined description of the component.

akka.component.id

string

Yes

Unique identifier for the component instance.

akka.component.implementation.name

string

Recommended: if available

Fully qualified class name of the component implementation.

akka.component.name

string

Recommended: if available

User-defined name of the component.

akka.component.type

enum

Yes

The type of Akka component.
Workflow Command attributes
Attribute Type Required Description

akka.workflow.command.name

string

Yes

The name of the workflow command.
Workflow Span attributes
Attribute Type Required Description

akka.workflow.id

string

Yes

The workflow ID.
Workflow Debug attributes
Attribute Type Required Description

akka.workflow.command.content

string

Conditionally required: when debug tracing is enabled

The JSON content of the workflow command payload.

akka.workflow.command.type

string

Conditionally required: when debug tracing is enabled

The protobuf type name of the workflow command payload.

akka.workflow.reply.content

string

Conditionally required: when debug tracing is enabled

The JSON content of the workflow reply payload.

akka.workflow.reply.type

string

Conditionally required: when debug tracing is enabled

The protobuf type name of the workflow reply payload.

Workflow step span

This span represents a workflow step execution. Span kind:: server Akka span kind:: workflow.step

Component attributes
Attribute Type Required Description

akka.component.description

string

Recommended: if available

User-defined description of the component.

akka.component.id

string

Yes

Unique identifier for the component instance.

akka.component.implementation.name

string

Recommended: if available

Fully qualified class name of the component implementation.

akka.component.name

string

Recommended: if available

User-defined name of the component.

akka.component.type

enum

Yes

The type of Akka component.
Workflow Span attributes
Attribute Type Required Description

akka.workflow.id

string

Yes

The workflow ID.
Workflow Step attributes
Attribute Type Required Description

akka.workflow.step.attempt

int

Yes

The attempt number for the workflow step.

akka.workflow.step.id

int

Yes

The ID of the workflow step.

akka.workflow.step.name

string

Yes

The name of the workflow step.
Workflow Debug attributes
Attribute Type Required Description

akka.workflow.step.input.content

string

Conditionally required: when debug tracing is enabled

The JSON content of the workflow step input payload.

akka.workflow.step.input.type

string

Conditionally required: when debug tracing is enabled

The protobuf type name of the workflow step input payload.

Views

View query span

This span represents a view query execution. Span kind:: internal Akka span kind:: view.query

Component attributes
Attribute Type Required Description

akka.component.description

string

Recommended: if available

User-defined description of the component.

akka.component.id

string

Yes

Unique identifier for the component instance.

akka.component.implementation.name

string

Recommended: if available

Fully qualified class name of the component implementation.

akka.component.name

string

Recommended: if available

User-defined name of the component.

akka.component.type

enum

Yes

The type of Akka component.
View Debug attributes
Attribute Type Required Description

akka.view.query

string

Conditionally required: when debug tracing is enabled

The view query string.

View update span

This span represents a view update processing invocation. Span kind:: internal Akka span kind:: view.update

Component attributes
Attribute Type Required Description

akka.component.description

string

Recommended: if available

User-defined description of the component.

akka.component.id

string

Yes

Unique identifier for the component instance.

akka.component.implementation.name

string

Recommended: if available

Fully qualified class name of the component implementation.

akka.component.name

string

Recommended: if available

User-defined name of the component.

akka.component.type

enum

Yes

The type of Akka component.
Consumer attributes
Attribute Type Required Description

akka.consumer.source

enum

Yes

The type of source the consumer is consuming from.
View Update attributes
Attribute Type Required Description

akka.view.table

string

Yes

The view table name.
Consumer Debug attributes
Attribute Type Required Description

akka.consumer.message.content

string

Conditionally required: when debug tracing is enabled

The JSON content of the consumer message payload.

akka.consumer.message.type

string

Conditionally required: when debug tracing is enabled

The protobuf type name of the consumer message payload.

akka.consumer.output.content

string

Conditionally required: when debug tracing is enabled

The JSON content of the consumer output payload.

akka.consumer.output.type

string

Conditionally required: when debug tracing is enabled

The protobuf type name of the consumer output payload.
Consumer Span attributes
Attribute Type Required Description

akka.consumer.source.group

string

Conditionally required: when the source has a consumer group

The consumer group for the source.

akka.consumer.source.id

string

Conditionally required: when debug tracing is enabled

The identifier of the consumer source.

akka.consumer.subject

string

Conditionally required: when the message has a subject

The subject of the consumer message.

Consumers

Consumer message span

This span represents a consumer message processing invocation. Span kind:: server Akka span kind:: consumer.message

Component attributes
Attribute Type Required Description

akka.component.description

string

Recommended: if available

User-defined description of the component.

akka.component.id

string

Yes

Unique identifier for the component instance.

akka.component.implementation.name

string

Recommended: if available

Fully qualified class name of the component implementation.

akka.component.name

string

Recommended: if available

User-defined name of the component.

akka.component.type

enum

Yes

The type of Akka component.
Consumer attributes
Attribute Type Required Description

akka.consumer.source

enum

Yes

The type of source the consumer is consuming from.
Consumer Debug attributes
Attribute Type Required Description

akka.consumer.message.content

string

Conditionally required: when debug tracing is enabled

The JSON content of the consumer message payload.

akka.consumer.message.type

string

Conditionally required: when debug tracing is enabled

The protobuf type name of the consumer message payload.

akka.consumer.output.content

string

Conditionally required: when debug tracing is enabled

The JSON content of the consumer output payload.

akka.consumer.output.destination

string

Conditionally required: when debug tracing is enabled and output has a destination

The destination for the consumer output.

akka.consumer.output.type

string

Conditionally required: when debug tracing is enabled

The protobuf type name of the consumer output payload.
Consumer Span attributes
Attribute Type Required Description

akka.consumer.source.group

string

Conditionally required: when the source has a consumer group

The consumer group for the source.

akka.consumer.source.id

string

Conditionally required: when debug tracing is enabled

The identifier of the consumer source.

akka.consumer.subject

string

Conditionally required: when the message has a subject

The subject of the consumer message.