Setting up monitoring of cluster communcation service

Change-Id: I771b23db6920b26b592abc5d5156e9d77cde4f00
diff --git a/core/store/primitives/src/main/java/org/onosproject/store/primitives/impl/DefaultAsyncDistributedSet.java b/core/store/primitives/src/main/java/org/onosproject/store/primitives/impl/DefaultAsyncDistributedSet.java
index aaa44aa..fe680aa 100644
--- a/core/store/primitives/src/main/java/org/onosproject/store/primitives/impl/DefaultAsyncDistributedSet.java
+++ b/core/store/primitives/src/main/java/org/onosproject/store/primitives/impl/DefaultAsyncDistributedSet.java
@@ -33,6 +33,7 @@
 import com.google.common.collect.ImmutableSet;
 import com.google.common.collect.Maps;
 import com.google.common.collect.Sets;
+import org.onosproject.utils.MeteringAgent;
 
 /**
  * Implementation of {@link AsyncDistributedSet}.