Expose proton document db heart beat age metric.

1 files changed, 1 insertions, 0 deletions

diff --git a/config-model/src/main/java/com/yahoo/vespa/model/admin/monitoring/VespaMetricSet.java b/config-model/src/main/java/com/yahoo/vespa/model/admin/monitoring/VespaMetricSet.java
index 114a3e380ef..39a7fabf0d3 100644
--- a/config-model/src/main/java/com/yahoo/vespa/model/admin/monitoring/VespaMetricSet.java
+++ b/config-model/src/main/java/com/yahoo/vespa/model/admin/monitoring/VespaMetricSet.java
@@ -375,6 +375,7 @@ public class VespaMetricSet {
         metrics.add(new Metric("content.proton.documentdb.index.docs_in_memory.last"));
         metrics.add(new Metric("content.proton.documentdb.disk_usage.last"));
         metrics.add(new Metric("content.proton.documentdb.memory_usage.allocated_bytes.max"));
+        metrics.add(new Metric("content.proton.documentdb.heart_beat_age.last"));
         metrics.add(new Metric("content.proton.transport.query.count.rate"));
         metrics.add(new Metric("content.proton.docsum.docs.rate"));
         metrics.add(new Metric("content.proton.docsum.latency.max"));