opentelemetry.proto.trace.v1.trace.proto Maven / Gradle / Ivy
// Copyright 2019, OpenTelemetry Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
syntax = "proto3";
package opentelemetry.proto.trace.v1;
import "opentelemetry/proto/common/v1/common.proto";
import "opentelemetry/proto/resource/v1/resource.proto";
option csharp_namespace = "OpenTelemetry.Proto.Trace.V1";
option java_multiple_files = true;
option java_package = "io.opentelemetry.proto.trace.v1";
option java_outer_classname = "TraceProto";
option go_package = "go.opentelemetry.io/proto/otlp/trace/v1";
// TracesData represents the traces data that can be stored in a persistent storage,
// OR can be embedded by other protocols that transfer OTLP traces data but do
// not implement the OTLP protocol.
//
// The main difference between this message and collector protocol is that
// in this message there will not be any "control" or "metadata" specific to
// OTLP protocol.
//
// When new fields are added into this message, the OTLP request MUST be updated
// as well.
message TracesData {
// An array of ResourceSpans.
// For data coming from a single resource this array will typically contain
// one element. Intermediary nodes that receive data from multiple origins
// typically batch the data before forwarding further and in that case this
// array will contain multiple elements.
repeated ResourceSpans resource_spans = 1;
}
// A collection of ScopeSpans from a Resource.
message ResourceSpans {
reserved 1000;
// The resource for the spans in this message.
// If this field is not set then no resource info is known.
opentelemetry.proto.resource.v1.Resource resource = 1;
// A list of ScopeSpans that originate from a resource.
repeated ScopeSpans scope_spans = 2;
// The Schema URL, if known. This is the identifier of the Schema that the resource data
// is recorded in. To learn more about Schema URL see
// https://opentelemetry.io/docs/specs/otel/schemas/#schema-url
// This schema_url applies to the data in the "resource" field. It does not apply
// to the data in the "scope_spans" field which have their own schema_url field.
string schema_url = 3;
}
// A collection of Spans produced by an InstrumentationScope.
message ScopeSpans {
// The instrumentation scope information for the spans in this message.
// Semantically when InstrumentationScope isn't set, it is equivalent with
// an empty instrumentation scope name (unknown).
opentelemetry.proto.common.v1.InstrumentationScope scope = 1;
// A list of Spans that originate from an instrumentation scope.
repeated Span spans = 2;
// The Schema URL, if known. This is the identifier of the Schema that the span data
// is recorded in. To learn more about Schema URL see
// https://opentelemetry.io/docs/specs/otel/schemas/#schema-url
// This schema_url applies to all spans and span events in the "spans" field.
string schema_url = 3;
}
// A Span represents a single operation performed by a single component of the system.
//
// The next available field id is 17.
message Span {
// A unique identifier for a trace. All spans from the same trace share
// the same `trace_id`. The ID is a 16-byte array. An ID with all zeroes OR
// of length other than 16 bytes is considered invalid (empty string in OTLP/JSON
// is zero-length and thus is also invalid).
//
// This field is required.
bytes trace_id = 1;
// A unique identifier for a span within a trace, assigned when the span
// is created. The ID is an 8-byte array. An ID with all zeroes OR of length
// other than 8 bytes is considered invalid (empty string in OTLP/JSON
// is zero-length and thus is also invalid).
//
// This field is required.
bytes span_id = 2;
// trace_state conveys information about request position in multiple distributed tracing graphs.
// It is a trace_state in w3c-trace-context format: https://www.w3.org/TR/trace-context/#tracestate-header
// See also https://github.com/w3c/distributed-tracing for more details about this field.
string trace_state = 3;
// The `span_id` of this span's parent span. If this is a root span, then this
// field must be empty. The ID is an 8-byte array.
bytes parent_span_id = 4;
// Flags, a bit field.
//
// Bits 0-7 (8 least significant bits) are the trace flags as defined in W3C Trace
// Context specification. To read the 8-bit W3C trace flag, use
// `flags & SPAN_FLAGS_TRACE_FLAGS_MASK`.
//
// See https://www.w3.org/TR/trace-context-2/#trace-flags for the flag definitions.
//
// Bits 8 and 9 represent the 3 states of whether a span's parent
// is remote. The states are (unknown, is not remote, is remote).
// To read whether the value is known, use `(flags & SPAN_FLAGS_CONTEXT_HAS_IS_REMOTE_MASK) != 0`.
// To read whether the span is remote, use `(flags & SPAN_FLAGS_CONTEXT_IS_REMOTE_MASK) != 0`.
//
// When creating span messages, if the message is logically forwarded from another source
// with an equivalent flags fields (i.e., usually another OTLP span message), the field SHOULD
// be copied as-is. If creating from a source that does not have an equivalent flags field
// (such as a runtime representation of an OpenTelemetry span), the high 22 bits MUST
// be set to zero.
// Readers MUST NOT assume that bits 10-31 (22 most significant bits) will be zero.
//
// [Optional].
fixed32 flags = 16;
// A description of the span's operation.
//
// For example, the name can be a qualified method name or a file name
// and a line number where the operation is called. A best practice is to use
// the same display name at the same call point in an application.
// This makes it easier to correlate spans in different traces.
//
// This field is semantically required to be set to non-empty string.
// Empty value is equivalent to an unknown span name.
//
// This field is required.
string name = 5;
// SpanKind is the type of span. Can be used to specify additional relationships between spans
// in addition to a parent/child relationship.
enum SpanKind {
// Unspecified. Do NOT use as default.
// Implementations MAY assume SpanKind to be INTERNAL when receiving UNSPECIFIED.
SPAN_KIND_UNSPECIFIED = 0;
// Indicates that the span represents an internal operation within an application,
// as opposed to an operation happening at the boundaries. Default value.
SPAN_KIND_INTERNAL = 1;
// Indicates that the span covers server-side handling of an RPC or other
// remote network request.
SPAN_KIND_SERVER = 2;
// Indicates that the span describes a request to some remote service.
SPAN_KIND_CLIENT = 3;
// Indicates that the span describes a producer sending a message to a broker.
// Unlike CLIENT and SERVER, there is often no direct critical path latency relationship
// between producer and consumer spans. A PRODUCER span ends when the message was accepted
// by the broker while the logical processing of the message might span a much longer time.
SPAN_KIND_PRODUCER = 4;
// Indicates that the span describes consumer receiving a message from a broker.
// Like the PRODUCER kind, there is often no direct critical path latency relationship
// between producer and consumer spans.
SPAN_KIND_CONSUMER = 5;
}
// Distinguishes between spans generated in a particular context. For example,
// two spans with the same name may be distinguished using `CLIENT` (caller)
// and `SERVER` (callee) to identify queueing latency associated with the span.
SpanKind kind = 6;
// start_time_unix_nano is the start time of the span. On the client side, this is the time
// kept by the local machine where the span execution starts. On the server side, this
// is the time when the server's application handler starts running.
// Value is UNIX Epoch time in nanoseconds since 00:00:00 UTC on 1 January 1970.
//
// This field is semantically required and it is expected that end_time >= start_time.
fixed64 start_time_unix_nano = 7;
// end_time_unix_nano is the end time of the span. On the client side, this is the time
// kept by the local machine where the span execution ends. On the server side, this
// is the time when the server application handler stops running.
// Value is UNIX Epoch time in nanoseconds since 00:00:00 UTC on 1 January 1970.
//
// This field is semantically required and it is expected that end_time >= start_time.
fixed64 end_time_unix_nano = 8;
// attributes is a collection of key/value pairs. Note, global attributes
// like server name can be set using the resource API. Examples of attributes:
//
// "/http/user_agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_2) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/71.0.3578.98 Safari/537.36"
// "/http/server_latency": 300
// "example.com/myattribute": true
// "example.com/score": 10.239
//
// The OpenTelemetry API specification further restricts the allowed value types:
// https://github.com/open-telemetry/opentelemetry-specification/blob/main/specification/common/README.md#attribute
// Attribute keys MUST be unique (it is not allowed to have more than one
// attribute with the same key).
repeated opentelemetry.proto.common.v1.KeyValue attributes = 9;
// dropped_attributes_count is the number of attributes that were discarded. Attributes
// can be discarded because their keys are too long or because there are too many
// attributes. If this value is 0, then no attributes were dropped.
uint32 dropped_attributes_count = 10;
// Event is a time-stamped annotation of the span, consisting of user-supplied
// text description and key-value pairs.
message Event {
// time_unix_nano is the time the event occurred.
fixed64 time_unix_nano = 1;
// name of the event.
// This field is semantically required to be set to non-empty string.
string name = 2;
// attributes is a collection of attribute key/value pairs on the event.
// Attribute keys MUST be unique (it is not allowed to have more than one
// attribute with the same key).
repeated opentelemetry.proto.common.v1.KeyValue attributes = 3;
// dropped_attributes_count is the number of dropped attributes. If the value is 0,
// then no attributes were dropped.
uint32 dropped_attributes_count = 4;
}
// events is a collection of Event items.
repeated Event events = 11;
// dropped_events_count is the number of dropped events. If the value is 0, then no
// events were dropped.
uint32 dropped_events_count = 12;
// A pointer from the current span to another span in the same trace or in a
// different trace. For example, this can be used in batching operations,
// where a single batch handler processes multiple requests from different
// traces or when the handler receives a request from a different project.
message Link {
// A unique identifier of a trace that this linked span is part of. The ID is a
// 16-byte array.
bytes trace_id = 1;
// A unique identifier for the linked span. The ID is an 8-byte array.
bytes span_id = 2;
// The trace_state associated with the link.
string trace_state = 3;
// attributes is a collection of attribute key/value pairs on the link.
// Attribute keys MUST be unique (it is not allowed to have more than one
// attribute with the same key).
repeated opentelemetry.proto.common.v1.KeyValue attributes = 4;
// dropped_attributes_count is the number of dropped attributes. If the value is 0,
// then no attributes were dropped.
uint32 dropped_attributes_count = 5;
// Flags, a bit field.
//
// Bits 0-7 (8 least significant bits) are the trace flags as defined in W3C Trace
// Context specification. To read the 8-bit W3C trace flag, use
// `flags & SPAN_FLAGS_TRACE_FLAGS_MASK`.
//
// See https://www.w3.org/TR/trace-context-2/#trace-flags for the flag definitions.
//
// Bits 8 and 9 represent the 3 states of whether the link is remote.
// The states are (unknown, is not remote, is remote).
// To read whether the value is known, use `(flags & SPAN_FLAGS_CONTEXT_HAS_IS_REMOTE_MASK) != 0`.
// To read whether the link is remote, use `(flags & SPAN_FLAGS_CONTEXT_IS_REMOTE_MASK) != 0`.
//
// Readers MUST NOT assume that bits 10-31 (22 most significant bits) will be zero.
// When creating new spans, bits 10-31 (most-significant 22-bits) MUST be zero.
//
// [Optional].
fixed32 flags = 6;
}
// links is a collection of Links, which are references from this span to a span
// in the same or different trace.
repeated Link links = 13;
// dropped_links_count is the number of dropped links after the maximum size was
// enforced. If this value is 0, then no links were dropped.
uint32 dropped_links_count = 14;
// An optional final status for this span. Semantically when Status isn't set, it means
// span's status code is unset, i.e. assume STATUS_CODE_UNSET (code = 0).
Status status = 15;
}
// The Status type defines a logical error model that is suitable for different
// programming environments, including REST APIs and RPC APIs.
message Status {
reserved 1;
// A developer-facing human readable error message.
string message = 2;
// For the semantics of status codes see
// https://github.com/open-telemetry/opentelemetry-specification/blob/main/specification/trace/api.md#set-status
enum StatusCode {
// The default status.
STATUS_CODE_UNSET = 0;
// The Span has been validated by an Application developer or Operator to
// have completed successfully.
STATUS_CODE_OK = 1;
// The Span contains an error.
STATUS_CODE_ERROR = 2;
};
// The status code.
StatusCode code = 3;
}
// SpanFlags represents constants used to interpret the
// Span.flags field, which is protobuf 'fixed32' type and is to
// be used as bit-fields. Each non-zero value defined in this enum is
// a bit-mask. To extract the bit-field, for example, use an
// expression like:
//
// (span.flags & SPAN_FLAGS_TRACE_FLAGS_MASK)
//
// See https://www.w3.org/TR/trace-context-2/#trace-flags for the flag definitions.
//
// Note that Span flags were introduced in version 1.1 of the
// OpenTelemetry protocol. Older Span producers do not set this
// field, consequently consumers should not rely on the absence of a
// particular flag bit to indicate the presence of a particular feature.
enum SpanFlags {
// The zero value for the enum. Should not be used for comparisons.
// Instead use bitwise "and" with the appropriate mask as shown above.
SPAN_FLAGS_DO_NOT_USE = 0;
// Bits 0-7 are used for trace flags.
SPAN_FLAGS_TRACE_FLAGS_MASK = 0x000000FF;
// Bits 8 and 9 are used to indicate that the parent span or link span is remote.
// Bit 8 (`HAS_IS_REMOTE`) indicates whether the value is known.
// Bit 9 (`IS_REMOTE`) indicates whether the span or link is remote.
SPAN_FLAGS_CONTEXT_HAS_IS_REMOTE_MASK = 0x00000100;
SPAN_FLAGS_CONTEXT_IS_REMOTE_MASK = 0x00000200;
// Bits 10-31 are reserved for future use.
}
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