Add groupId metric dimension.

- It is not yet added to the public http apis, due to the
  limitation of 10 total dimensions.

1 files changed, 4 insertions, 0 deletions

diff --git a/metrics-proxy/src/main/java/ai/vespa/metricsproxy/metric/dimensions/PublicDimensions.java b/metrics-proxy/src/main/java/ai/vespa/metricsproxy/metric/dimensions/PublicDimensions.java
index f6bda2f9ef5..84c95f8e39e 100644
--- a/metrics-proxy/src/main/java/ai/vespa/metricsproxy/metric/dimensions/PublicDimensions.java
+++ b/metrics-proxy/src/main/java/ai/vespa/metricsproxy/metric/dimensions/PublicDimensions.java
@@ -25,6 +25,10 @@ public final class PublicDimensions {
     public static final String INTERNAL_CLUSTER_ID = "clusterid";
     public static final String CLUSTER_ID = "clusterId";
 
+    // This dimension is not currently (March 2021) added to the 'commonDimensions' allow-list below, due to the
+    // limit of 10 total dimensions in public http apis. See e.g. MetricsV2Handler#MAX_DIMENSIONS.
+    public static final String GROUP_ID = "groupId";
+
     // Internal name (instance) is confusing, so renamed to 'serviceId' for public use.
     // This is added by the metrics-proxy.
     public static final String INTERNAL_SERVICE_ID = "instance";