Lower OFMessageDamper capacity

- Internal cache would saturate at some point, but
  current cache size was too large, which caused OOM in CHO test environment.
  Lowering the capacity to a value used by latest Floodlight code base.

Change-Id: I81a58a297c16d34ce4bb981026a91b92ad68767a
diff --git a/src/main/java/net/onrc/onos/core/flowprogrammer/FlowPusher.java b/src/main/java/net/onrc/onos/core/flowprogrammer/FlowPusher.java
index 661f5c0..05510f6 100644
--- a/src/main/java/net/onrc/onos/core/flowprogrammer/FlowPusher.java
+++ b/src/main/java/net/onrc/onos/core/flowprogrammer/FlowPusher.java
@@ -91,7 +91,7 @@
     // TODO: Values copied from elsewhere (class LearningSwitch).
     // The local copy should go away!
     //
-    protected static final int OFMESSAGE_DAMPER_CAPACITY = 50000; // TODO: find sweet spot
+    protected static final int OFMESSAGE_DAMPER_CAPACITY = 10000; // TODO: find sweet spot
     protected static final int OFMESSAGE_DAMPER_TIMEOUT = 250;    // ms
 
     // Number of messages sent to switch at once