From: Martin Michaelis <code@mgjm.de>
Date: Tue, 16 Feb 2021 20:06:50 +0000 (+0100)
Subject: stats: openmentrics: Change histogram bucket unit to seconds
X-Git-Tag: 2.3.14~7
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=939c30da5f724e7b2d2d0263bf74323ca7431c2d;p=thirdparty%2Fdovecot%2Fcore.git

stats: openmentrics: Change histogram bucket unit to seconds

In ae678116a79fff609cdf4fb1eb7eb3db2975bf1c the unit of durations was changed
from microseconds to seconds, but the `le` field in histograms is still in
microseconds.
---

diff --git a/src/stats/stats-service-openmetrics.c b/src/stats/stats-service-openmetrics.c
index 56c35dd022..83832a3160 100644
--- a/src/stats/stats-service-openmetrics.c
+++ b/src/stats/stats-service-openmetrics.c
@@ -198,8 +198,10 @@ openmetrics_export_histogram_bucket(struct openmetrics_request *req,
 	}
 	if (bucket_limit == INTMAX_MAX)
 		str_append(out, "le=\"+Inf\"");
-	else
-		str_printfa(out, "le=\"%jd\"", bucket_limit);
+	else {
+		/* Convert from microseconds to seconds */
+		str_printfa(out, "le=\"%.6f\"", bucket_limit/1e6F);
+	}
 	str_printfa(out, "} %"PRIu64"\n", count);
 }