Merge pull request #13449 from fatsheep9146/native-histogram-support-…

…exemplar scrape: Prometheus server support exemplar in native histogram
prometheus · Jan 25, 2024 · 0fe34f8 · 0fe34f8
2 parents c3b8ef1 + 033c9b2
commit 0fe34f8
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Showing 2 changed files with 136 additions and 67 deletions.
diff --git a/prompb/io/prometheus/client/metrics.pb.go b/prompb/io/prometheus/client/metrics.pb.go
diff --git a/prompb/io/prometheus/client/metrics.proto b/prompb/io/prometheus/client/metrics.proto
@@ -112,6 +112,9 @@ message Histogram {
   // histograms.
   repeated sint64 positive_delta = 13; // Count delta of each bucket compared to previous one (or to zero for 1st bucket).
   repeated double positive_count = 14; // Absolute count of each bucket.
+
+  // Only used for native histograms. These exemplars MUST have a timestamp.
+  repeated Exemplar exemplars = 16;
 }
 
 message Bucket {