CloudWatch flusso metrico in formato OpenTelemetry 1.0.0

OpenTelemetry è una raccolta di strumenti e. APIs SDKs È possibile utilizzarlo per strumentare, generare, raccogliere ed esportare dati di telemetria (metriche, log e tracce) per l'analisi. OpenTelemetry fa parte della Cloud Native Computing Foundation. Per ulteriori informazioni, vedere OpenTelemetry.

Per informazioni sulla specifica OpenTelemetry 1.0.0 completa, vedere la versione di rilascio 1.0.0.

Un record Kinesis può contenere una o più strutture di ExportMetricsServiceRequest OpenTelemetry dati. Ogni struttura dati inizia con un'intestazione con UnsignedVarInt32 che indica la lunghezza del record in byte. Ciascuna ExportMetricsServiceRequest può contenere dati provenienti da più parametri contemporaneamente.

Di seguito è riportata una rappresentazione in formato stringa del messaggio della struttura ExportMetricsServiceRequest OpenTelemetry dati. OpenTelemetry serializza il protocollo binario di Google Protocol Buffers e questo non è leggibile dall'uomo.

resource_metrics {
  resource {
    attributes {
      key: "cloud.provider"
      value {
        string_value: "aws"
      }
    }
    attributes {
      key: "cloud.account.id"
      value {
        string_value: "123456789012"
      }
    }
    attributes {
      key: "cloud.region"
      value {
        string_value: "us-east-1"
      }
    }
    attributes {
      key: "aws.exporter.arn"
      value {
        string_value: "arn:aws:cloudwatch:us-east-1:123456789012:metric-stream/MyMetricStream"
      }
    }
  }
  scope_metrics {
    metrics {
      name: "amazonaws.com/AWS/DynamoDB/ConsumedReadCapacityUnits"
      unit: "NoneTranslated"
      summary {
        data_points {
          start_time_unix_nano: 60000000000
          time_unix_nano: 120000000000
          count: 1
          sum: 1.0
          quantile_values {
            value: 1.0
          }
          quantile_values {
            quantile: 0.95
            value: 1.0
          }
          quantile_values {
            quantile: 0.99
            value: 1.0
          }
          quantile_values {
            quantile: 1.0
            value: 1.0
          }
          attributes {
            key: "Namespace"
            value {
              string_value: "AWS/DynamoDB"
            }
          }
          attributes {
            key: "MetricName"
            value {
              string_value: "ConsumedReadCapacityUnits"
            }
          }
          attributes {
            key: "Dimensions"
            value {
              kvlist_value {
                values {
                  key: "TableName"
                  value {
                    string_value: "MyTable"
                  }
                }
              }
            }
          }
        }
        data_points {
          start_time_unix_nano: 70000000000
          time_unix_nano: 130000000000
          count: 2
          sum: 5.0
          quantile_values {
            value: 2.0
          }
          quantile_values {
            quantile: 1.0
            value: 3.0
          }
          attributes {
            key: "Namespace"
            value {
              string_value: "AWS/DynamoDB"
            }
          }
          attributes {
            key: "MetricName"
            value {
              string_value: "ConsumedReadCapacityUnits"
            }
          }
          attributes {
            key: "Dimensions"
            value {
              kvlist_value {
                values {
                  key: "TableName"
                  value {
                    string_value: "MyTable"
                  }
                }
              }
            }
          }
        }
      }
    }
  }
}

Oggetto di primo livello per serializzare i dati metrici OpenTelemetry

ExportMetricsServiceRequestè il wrapper di primo livello per serializzare un payload di esportazione. OpenTelemetry Contiene uno o più ResourceMetrics.

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 opentelemetry.proto.metrics.v1.ResourceMetrics resource_metrics = 1;
}

ResourceMetricsè l'oggetto di primo livello per rappresentare gli oggetti. MetricData

// A collection of ScopeMetrics from a Resource.
message ResourceMetrics {
  reserved 1000;

  // The resource for the metrics 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 metrics that originate from a resource.
  repeated ScopeMetrics scope_metrics = 2;

  // This schema_url applies to the data in the "resource" field. It does not apply
  // to the data in the "scope_metrics" field which have their own schema_url field.
  string schema_url = 3;
}

Oggetto della risorsa

Un oggetto Resource è un oggetto coppia di valori che contiene alcune informazioni sulla risorsa che ha generato i parametri. Per le metriche create da AWS, la struttura dati contiene l'Amazon Resource Name (ARN) della risorsa correlata alla metrica, EC2 ad esempio un'istanza o un bucket S3.

L'oggetto Resource contiene un attributo denominato attributes, che memorizza un elenco di coppie chiave-valore.

// Resource information.
message Resource {
  // Set of attributes that describe the resource.
  // 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 = 1;

  // dropped_attributes_count is the number of dropped attributes. If the value is 0, then
  // no attributes were dropped.
  uint32 dropped_attributes_count = 2;
}

L'oggetto ScopeMetrics

Il campo scope non verrà compilato. Compiliamo solo il campo dei parametri che stiamo esportando.

// A collection of Metrics produced by an Scope.
message ScopeMetrics {
  // The instrumentation scope information for the metrics 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 metrics that originate from an instrumentation library.
  repeated Metric metrics = 2;

  // This schema_url applies to all metrics in the "metrics" field.
  string schema_url = 3;
}

L'oggetto Metric

L'oggetto Metric contiene alcuni metadati e un campo dati Summary che contiene un elenco di SummaryDataPoint.

Per i flussi di parametri, i metadati sono i seguenti:

message Metric {
  reserved 4, 6, 8;

  // name of the metric, including its DNS name prefix. It must be unique.
  string name = 1;

  // description of the metric, which can be used in documentation.
  string description = 2;

  // unit in which the metric value is reported. Follows the format
  // described by http://unitsofmeasure.org/ucum.html.
  string unit = 3;

  // Data determines the aggregation type (if any) of the metric, what is the
  // reported value type for the data points, as well as the relatationship to
  // the time interval over which they are reported.
  oneof data {
    Gauge gauge = 5;
    Sum sum = 7;
    Histogram histogram = 9;
    ExponentialHistogram exponential_histogram = 10;
    Summary summary = 11;
  }
}

message Summary {
  repeated SummaryDataPoint data_points = 1;
}

L' SummaryDataPoint oggetto

L' SummaryDataPoint oggetto contiene il valore di un singolo punto dati in una serie temporale in una DoubleSummary metrica.

// SummaryDataPoint is a single data point in a timeseries that describes the
// time-varying values of a Summary metric.
message SummaryDataPoint {
  reserved 1;

  // The set of key/value pairs that uniquely identify the timeseries from
  // where this point belongs. The list may be empty (may contain 0 elements).
  // 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 = 7;

  // StartTimeUnixNano is optional but strongly encouraged, see the
  // the detailed comments above Metric.
  //
  // Value is UNIX Epoch time in nanoseconds since 00:00:00 UTC on 1 January
  // 1970.
  fixed64 start_time_unix_nano = 2;

  // TimeUnixNano is required, see the detailed comments above Metric.
  //
  // Value is UNIX Epoch time in nanoseconds since 00:00:00 UTC on 1 January
  // 1970.
  fixed64 time_unix_nano = 3;

  // count is the number of values in the population. Must be non-negative.
  fixed64 count = 4;

  // sum of the values in the population. If count is zero then this field
  // must be zero.
  //
  // Note: Sum should only be filled out when measuring non-negative discrete
  // events, and is assumed to be monotonic over the values of these events.
  // Negative events *can* be recorded, but sum should not be filled out when
  // doing so.  This is specifically to enforce compatibility w/ OpenMetrics,
  // see: https://github.com/OpenObservability/OpenMetrics/blob/main/specification/OpenMetrics.md#summary
  double sum = 5;

  // Represents the value at a given quantile of a distribution.
  //
  // To record Min and Max values following conventions are used:
  // - The 1.0 quantile is equivalent to the maximum value observed.
  // - The 0.0 quantile is equivalent to the minimum value observed.
  //
  // See the following issue for more context:
  // https://github.com/open-telemetry/opentelemetry-proto/issues/125
  message ValueAtQuantile {
    // The quantile of a distribution. Must be in the interval
    // [0.0, 1.0].
    double quantile = 1;

    // The value at the given quantile of a distribution.
    //
    // Quantile values must NOT be negative.
    double value = 2;
  }

  // (Optional) list of values at different quantiles of the distribution calculated
  // from the current snapshot. The quantiles must be strictly increasing.
  repeated ValueAtQuantile quantile_values = 6;

  // Flags that apply to this specific data point.  See DataPointFlags
  // for the available flags and their meaning.
  uint32 flags = 8;
}

Per ulteriori informazioni, consulta Traduzioni con formato OpenTelemetry 1.0.0 in CloudWatch.