Resolve false probing timeout by delaying the proble a little bit

Change-Id: Ib087f72fa742c614e8b6916a9ea0be4ee08ab064
diff --git a/core/store/dist/src/main/java/org/onosproject/store/host/impl/DistributedHostStore.java b/core/store/dist/src/main/java/org/onosproject/store/host/impl/DistributedHostStore.java
index 8a913cd..5f59921 100644
--- a/core/store/dist/src/main/java/org/onosproject/store/host/impl/DistributedHostStore.java
+++ b/core/store/dist/src/main/java/org/onosproject/store/host/impl/DistributedHostStore.java
@@ -108,7 +108,7 @@
     private Consumer<Status> statusChangeListener;
 
     // TODO make this configurable
-    private static final int PROBE_TIMEOUT_MS = 1000;
+    private static final int PROBE_TIMEOUT_MS = 1500;
 
     private Cache<MacAddress, PendingHostLocation> pendingHostsCache = CacheBuilder.newBuilder()
             .expireAfterWrite(PROBE_TIMEOUT_MS, TimeUnit.MILLISECONDS)