From 8827c13f5643a844ed84ba37bbdea0885b676018 Mon Sep 17 00:00:00 2001 From: Artur Shiriev Date: Sat, 24 Oct 2026 12:31:54 +0300 Subject: [PATCH] docs: note that same-system FastStream brokers share a Prometheus broker label --- docs/integrations/faststream.md | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/docs/integrations/faststream.md b/docs/integrations/faststream.md index c3ba09d..ec0f549 100644 --- a/docs/integrations/faststream.md +++ b/docs/integrations/faststream.md @@ -88,4 +88,9 @@ bootstrapper_config = FastStreamConfig( ``` A broker whose type has no middleware class is left uninstrumented, and `bootstrap()` warns with its -type name. All brokers share one Prometheus registry; each metric's `broker` label tells them apart. +type name. + +All brokers share one Prometheus registry. Each metric's `broker` label holds the messaging system, +such as `kafka` or `redis`, so it separates a Kafka broker from a Redis broker. Two brokers on the same +system get the same label, and if both have a handler with the same name, their counts merge into +one series.