diff --git a/hyracks/hyracks-control-cc/src/main/resources/edu/uci/ics/hyracks/control/cc/scheduler.olg b/hyracks/hyracks-control-cc/src/main/resources/edu/uci/ics/hyracks/control/cc/scheduler.olg
index 0be0401..46188da 100644
--- a/hyracks/hyracks-control-cc/src/main/resources/edu/uci/ics/hyracks/control/cc/scheduler.olg
+++ b/hyracks/hyracks-control-cc/src/main/resources/edu/uci/ics/hyracks/control/cc/scheduler.olg
@@ -24,6 +24,7 @@
     activitynode(JobId, OperatorId, ActivityId, _);
 
 activitystage_BLOCKED activitystage_temp(JobId, OperatorId2, ActivityId2, StageNumber) :-
+/* use activitystage_temp#insert() to trigger only on insert */
     activitystage_temp(JobId, OperatorId1, ActivityId1, StageNumber1),
     activitystage_temp(JobId, OperatorId2, ActivityId2, StageNumber2),
     activityblocked(JobId, OperatorId1, ActivityId1, OperatorId2, ActivityId2),
@@ -132,6 +133,7 @@
 watch(availablenodecount, i);
 watch(availablenodecount, d);
 
+/* Try not using a 0 key -- Tyson feels that should work! */
 availablenodecount(0, count<NodeId>) :-
     availablenodes(NodeId);