add logs

store/multiversion/store.go

@@ -239,7 +239,7 @@ func (s *Store) GetIterateset(index int) Iterateset {
 }
 
 // CollectIteratorItems implements MultiVersionStore. It will return a memDB containing all of the keys present in the multiversion store within the iteration range prior to (exclusive of) the index.
-func (s *Store) CollectIteratorItems(index int) *db.MemDB {
+func (s *Store) CollectIteratorItems(index int, logger log.Logger) *db.MemDB {
 	sortedItems := db.NewMemDB()
 
 	// get all writeset keys prior to index
@@ -250,6 +250,7 @@ func (s *Store) CollectIteratorItems(index int) *db.MemDB {
 		}
 		indexedWriteset := writesetAny.([]string)
 		// TODO: do we want to exclude keys out of the range or just let the iterator handle it?
+		logger.Info("Logging sorted keys from writeset index", "index", i, "length", len(indexedWriteset), "keys", indexedWriteset)
 		for _, key := range indexedWriteset {
 			// TODO: inefficient because (logn) for each key + rebalancing? maybe theres a better way to add to a tree to reduce rebalancing overhead
 			sortedItems.Set([]byte(key), []byte{})
@@ -260,7 +261,7 @@ func (s *Store) CollectIteratorItems(index int) *db.MemDB {
 
 func (s *Store) validateIterator(index int, tracker iterationTracker, logger log.Logger) bool {
 	// collect items from multiversion store
-	sortedItems := s.CollectIteratorItems(index)
+	sortedItems := s.CollectIteratorItems(index, logger)
 	// add the iterationtracker writeset keys to the sorted items
 	for key := range tracker.writeset {
 		sortedItems.Set([]byte(key), []byte{})