ONOS-2429: Support for a relaxed read consistency mode in ConsistentMap

Change-Id: I7866d8d15de369fd23e482d66cc1c918c033f169
diff --git a/incubator/store/src/main/java/org/onosproject/incubator/store/config/impl/DistributedNetworkConfigStore.java b/incubator/store/src/main/java/org/onosproject/incubator/store/config/impl/DistributedNetworkConfigStore.java
index 0b7c095..37d8a7f 100644
--- a/incubator/store/src/main/java/org/onosproject/incubator/store/config/impl/DistributedNetworkConfigStore.java
+++ b/incubator/store/src/main/java/org/onosproject/incubator/store/config/impl/DistributedNetworkConfigStore.java
@@ -94,6 +94,7 @@
         configs = storageService.<ConfigKey, ObjectNode>consistentMapBuilder()
                 .withSerializer(Serializer.using(kryoBuilder.build()))
                 .withName("onos-network-configs")
+                .withRelaxedReadConsistency()
                 .build();
         configs.addListener(listener);
         log.info("Started");