From abc99963fd90d526ee08e86cf5e1e26283e2871e Mon Sep 17 00:00:00 2001
From: Arne Juul <arnej@yahoo-inc.com>
Date: Fri, 22 Mar 2019 09:42:20 +0000
Subject: add "sum" output for gauge metrics

---
 metrics/src/tests/valuemetrictest.cpp    | 3 +++
 metrics/src/vespa/metrics/jsonwriter.cpp | 1 +
 2 files changed, 4 insertions(+)

(limited to 'metrics')

diff --git a/metrics/src/tests/valuemetrictest.cpp b/metrics/src/tests/valuemetrictest.cpp
index da730b7c8a9..5aa00e5ba0a 100644
--- a/metrics/src/tests/valuemetrictest.cpp
+++ b/metrics/src/tests/valuemetrictest.cpp
@@ -232,6 +232,7 @@ void ValueMetricTest::testJson() {
         "  \"values\":\n"
         "  {\n"
         "    \"average\":0.0,\n"
+        "    \"sum\":0.0,\n"
         "    \"count\":0,\n"
         "    \"min\":0.0,\n"
         "    \"max\":0.0,\n"
@@ -251,6 +252,7 @@ void ValueMetricTest::testJson() {
         "  \"values\":\n"
         "  {\n"
         "    \"average\":100.0,\n"
+        "    \"sum\":100.0,\n"
         "    \"count\":1,\n"
         "    \"min\":100.0,\n"
         "    \"max\":100.0,\n"
@@ -269,6 +271,7 @@ void ValueMetricTest::testJson() {
         "  \"values\":\n"
         "  {\n"
         "    \"average\":300.0,\n"
+        "    \"sum\":600.0,\n"
         "    \"count\":2,\n"
         "    \"min\":100.0,\n"
         "    \"max\":500.0,\n"
diff --git a/metrics/src/vespa/metrics/jsonwriter.cpp b/metrics/src/vespa/metrics/jsonwriter.cpp
index d890d725c8a..9b8232dd42f 100644
--- a/metrics/src/vespa/metrics/jsonwriter.cpp
+++ b/metrics/src/vespa/metrics/jsonwriter.cpp
@@ -132,6 +132,7 @@ JsonWriter::visitValueMetric(const AbstractValueMetric& m, bool)
         _stream << (values->getDoubleValue("total")
                     / values->getDoubleValue("count"));
     }
+    _stream << "sum" << values->getDoubleValue("total");
     _stream << "count";
     values->output("count", _stream);
     if (_period > 0) {
-- 
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