slow down the ff volunteers

router/java/src/net/i2p/router/networkdb/kademlia/FloodfillMonitorJob.java

@@ -46,7 +46,12 @@ class FloodfillMonitorJob extends JobImpl {
             getContext().router().rebuildRouterInfo();
         if (_log.shouldLog(Log.INFO))
             _log.info("Should we be floodfill? " + ff);
-        requeue((REQUEUE_DELAY / 2) + getContext().random().nextInt(REQUEUE_DELAY));
+        int delay = (REQUEUE_DELAY / 2) + getContext().random().nextInt(REQUEUE_DELAY);
+        // there's a lot of eligible non-floodfills, keep them from all jumping in at once
+        // To do: somehow assess the size of the network to make this adaptive?
+        if (!ff)
+            delay *= 3;
+        requeue(delay);
     }
 
     private boolean shouldBeFloodfill() {