state/stateobject: debug future;

trie/trie.go

@@ -297,11 +297,14 @@ func (t *Trie) getWithEpoch(origNode node, key []byte, pos int, epoch types.Stat
 			n.flags = t.newFlag()
 			didResolve = true
 		}
+		if err != nil {
+			return value, n, didResolve, fmt.Errorf("getWithEpoch err, epoch: %v, node:%v, err: %v", epoch, n.fstring(""), err)
+		}
 		return value, n, didResolve, err
 	case hashNode:
 		child, err := t.resolveAndTrack(n, key[:pos])
 		if err != nil {
-			return nil, n, true, err
+			return nil, n, true, fmt.Errorf("getWithEpoch err, epoch: %v, node:%v, err: %v", epoch, n.fstring(""), err)
 		}
 
 		if err = t.resolveEpochMetaAndTrack(child, epoch, key[:pos]); err != nil {
@@ -954,6 +957,7 @@ func (t *Trie) deleteWithEpoch(n node, prefix, key []byte, epoch types.StateEpoc
 				// shortNode{..., shortNode{...}}.  Since the entry
 				// might not be loaded yet, resolve it just for this
 				// check.
+				// TODO(0xbundler): if Children[pos] has pruned? fetch from remote?
 				cnode, err := t.resolve(n.Children[pos], append(prefix, byte(pos)), n.GetChildEpoch(pos))
 				if err != nil {
 					return false, nil, err