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版本:0.14

OpenTelemetry Protocol (OTLP)

你可以通过 OTLP/HTTP 协议原生消费 OpenTelemetry 指标。

OpenTelemetry API/SDK

要通过 OpenTelemetry SDK 库将 OpenTelemetry 指标发送到 GreptimeDB,请使用以下信息:

  • URL: https://<host>/v1/otlp/v1/metrics
  • Headers:
    • X-Greptime-DB-Name: <dbname>
    • Authorization: Basic 认证,是 <username>:<password> 的 Base64 编码字符串。更多信息,请参阅 HTTP API 中的认证

由于请求中使用二进制 protobuf 编码的 payload,因此需要使用支持 HTTP/protobuf 的包。例如,在 Node.js 中,可以使用 exporter-trace-otlp-proto;在 Go 中,可以使用 go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp;在 Java 中,可以使用 io.opentelemetry:opentelemetry-exporter-otlp;在 Python 中,可以使用 opentelemetry-exporter-otlp-proto-http

注意

包名可能会被 OpenTelemetry 修改,因此建议你参考 OpenTelemetry 官方文档以获取最新信息。

OpenTelemetry Collector

OpenTelemetry Collector 是 OpenTelemetry 的一个与厂商无关的实现,下面是一个导出到 GreptimeDB 的示例配置。你可以使用 OpenTelemetry Collector 将指标、日志和追踪数据发送到 GreptimeDB。

extensions:
basicauth/client:
client_auth:
username: <username>
password: <password>

receivers:
otlp:
protocols:
grpc:
endpoint: 0.0.0.0:4317
http:
endpoint: 0.0.0.0:4318

exporters:
otlphttp/traces:
endpoint: 'https://<host>/v1/otlp'
auth:
authenticator: basicauth/client
headers:
x-greptime-db-name: '<dbname>'
x-greptime-pipeline-name: 'greptime_trace_v1'
otlphttp/logs:
endpoint: 'https://<host>/v1/otlp'
auth:
authenticator: basicauth/client
headers:
x-greptime-db-name: '<dbname>'
# x-greptime-log-table-name: "<pipeline_name>"

otlphttp/metrics:
endpoint: 'https://<host>/v1/otlp'
auth:
authenticator: basicauth/client
headers:
x-greptime-db-name: '<dbname>'

service:
extensions: [basicauth/client]
pipelines:
traces:
receivers: [otlp]
exporters: [otlphttp/traces]
logs:
receivers: [otlp]
exporters: [otlphttp/logs]
metrics:
receivers: [otlp]
exporters: [otlphttp/metrics]

Grafana Alloy

如果你更倾向于使用 Grafana Alloy 的 OpenTelemetry 导出器,可以使用如下配置来发送你的数据。

一个简单的配置示例如下:

otelcol.exporter.otlphttp "greptimedb" {
client {
endpoint = "https://<host>/v1/otlp/"
headers = {
"X-Greptime-DB-Name" = "<dbname>",
}
auth = otelcol.auth.basic.credentials.handler
}
}

otelcol.auth.basic "credentials" {
username = "<username>"
password = "<password>"
}