SOLR-13677: Add a missing override, which resulted in missing metrics (reported by tflobbe).
diff --git a/solr/core/src/java/org/apache/solr/update/DirectUpdateHandler2.java b/solr/core/src/java/org/apache/solr/update/DirectUpdateHandler2.java
index 248f18b..cacaed2 100644
--- a/solr/core/src/java/org/apache/solr/update/DirectUpdateHandler2.java
+++ b/solr/core/src/java/org/apache/solr/update/DirectUpdateHandler2.java
@@ -169,6 +169,11 @@
   }
 
   @Override
+  public SolrMetricsContext getSolrMetricsContext() {
+    return solrMetricsContext;
+  }
+
+  @Override
   public void initializeMetrics(SolrMetricsContext parentContext, String scope) {
     solrMetricsContext = parentContext.getChildContext(this);
     commitCommands = solrMetricsContext.meter(this, "commits", getCategory().toString(), scope);