From 0d87c6bd121d043d5474cc20e352794ff8cf5625 Mon Sep 17 00:00:00 2001
From: Andrew Morgan <1342360+anoadragon453@users.noreply.github.com>
Date: Tue, 6 Apr 2021 16:32:04 +0100
Subject: Don't report anything from GaugeBucketCollector metrics until data is
 present (#8926)

This PR modifies `GaugeBucketCollector` to only report data once it has been updated, rather than initially reporting a value of 0. Fixes zero values being reported for some metrics on startup until a background job to update the metric's value runs later.
---
 changelog.d/8926.bugfix | 1 +
 1 file changed, 1 insertion(+)
 create mode 100644 changelog.d/8926.bugfix

(limited to 'changelog.d/8926.bugfix')

diff --git a/changelog.d/8926.bugfix b/changelog.d/8926.bugfix
new file mode 100644
index 0000000000..aad7bd83ce
--- /dev/null
+++ b/changelog.d/8926.bugfix
@@ -0,0 +1 @@
+Prevent `synapse_forward_extremities` and `synapse_excess_extremity_events` Prometheus metrics from initially reporting zero-values after startup.
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cgit 1.5.1