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启用 Prometheus 指标#

为了收集和公开指标，n8n 使用 prom-client 库。

/metrics 端点默认被禁用，但可以使用 N8N_METRICS 环境变量启用它。

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export N8N_METRICS=true

请参考相应的环境变量（N8N_METRICS_INCLUDE_*）来配置应该公开哪些指标和标签。

main 和 worker 实例都能够公开指标。

队列指标#

要启用队列指标，请将 N8N_METRICS_INCLUDE_QUEUE_METRICS 环境变量设置为 true。您可以使用 N8N_METRICS_QUEUE_METRICS_INTERVAL 调整刷新率。

队列指标仅在单主模式下对 main 实例可用。

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# HELP n8n_scaling_mode_queue_jobs_active Current number of jobs being processed across all workers in scaling mode.
# TYPE n8n_scaling_mode_queue_jobs_active gauge
n8n_scaling_mode_queue_jobs_active 0

# HELP n8n_scaling_mode_queue_jobs_completed Total number of jobs completed across all workers in scaling mode since instance start.
# TYPE n8n_scaling_mode_queue_jobs_completed counter
n8n_scaling_mode_queue_jobs_completed 0

# HELP n8n_scaling_mode_queue_jobs_failed Total number of jobs failed across all workers in scaling mode since instance start.
# TYPE n8n_scaling_mode_queue_jobs_failed counter
n8n_scaling_mode_queue_jobs_failed 0

# HELP n8n_scaling_mode_queue_jobs_waiting Current number of enqueued jobs waiting for pickup in scaling mode.
# TYPE n8n_scaling_mode_queue_jobs_waiting gauge
n8n_scaling_mode_queue_jobs_waiting 0