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Replace the GCP trace agent with OpenTelemetry GitOrigin-RevId: 591410029349e4ef5a39a5b79868e57c7bd089b6
1.2 KiB
1.2 KiB
overleaf/metrics-module
Wrappers the prom-client npm module to provide Prometheus metrics at /metrics
.
Use:
// Metrics must be initialized before importing anything else
require('@overleaf/metrics/initialize')
const express = require('express')
const metrics = require('@overleaf/metrics')
const app = express()
metrics.injectMetricsRoute(app)
Request logging can be enabled:
const logger = require('@overleaf/logger')
...
app.use(metrics.http.monitor(logger))
The metrics module can be configured through the following environment variables:
DEBUG_METRICS
- enables display of debugging messages to the console.GCP_OPENTELEMETRY
- enables OpenTelemetry tracing for GCPJAEGER_OPENTELEMETRY
- enables OpenTelemetry tracing for Jaeger (in the dev environment)METRICS_APP_NAME
- the app label for metrics and spansMETRICS_COMPRESSION_LEVEL
- sets the compression level for/metrics
STACKDRIVER_LOGGING
- toggles the request logging formatUV_THREADPOOL_SIZE
- sets the libuv thread pool size