VictoriaMetrics/lib/protoparser/opentelemetry/proto/metrics_service.proto
Nikolay 46ecbbea26
lib/protoparser: adds opentelemetry parser (#2570)
* lib/protoparser: adds opentelemetry parser
app/{vmagent,vminsert}: adds opentelemetry ingestion path

Adds ability to ingest data with opentelemetry protocol
protobuf and json encoding is supported
data converted into prometheus protobuf timeseries
each data type has own converter and it may produce multiple timeseries
from single datapoint (for summary and histogram).
only cumulative aggregationFamily is supported for sum(prometheus
counter) and histogram.

Apply suggestions from code review

Co-authored-by: Roman Khavronenko <roman@victoriametrics.com>

updates deps

fixes tests

wip

wip

wip

wip

lib/protoparser/opentelemetry: moves to vtprotobuf generator

go mod vendor

lib/protoparse/opentelemetry: reduce memory allocations

* wip

- Remove support for JSON parsing, since it is too fragile and is rarely used in practice.
  The most clients send OpenTelemetry metrics in protobuf.
  The JSON parser can be added in the future if needed.
- Remove unused code from lib/protoparser/opentelemetry/pb and lib/protoparser/opentelemetry/proto
- Do not re-use protobuf message between ParseStream() calls, since there is high chance
  of high fragmentation of the re-used message because of too complex nested structure of the message.

* wip

* wip

* wip

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Co-authored-by: Aliaksandr Valialkin <valyala@victoriametrics.com>
2023-07-27 13:26:45 -07:00

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Protocol Buffer

// 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;
import "lib/protoparser/opentelemetry/proto/metrics.proto";
option go_package = "opentelemetry/pb";
message ExportMetricsServiceRequest {
// An array of ResourceMetrics.
// For data coming from a single resource this array will typically contain one
// element. Intermediary nodes (such as OpenTelemetry Collector) that receive
// data from multiple origins typically batch the data before forwarding further and
// in that case this array will contain multiple elements.
repeated ResourceMetrics resource_metrics = 1;
}