Patch IAVL + fast export

store/iavl/store.go

@@ -108,7 +108,7 @@ func UnsafeNewStore(tree *iavl.MutableTree) *Store {
 // Any mutable operations executed will result in a panic.
 func (st *Store) GetImmutable(version int64) (*Store, error) {
 	if !st.VersionExists(version) {
-		return &Store{tree: &immutableTree{&iavl.ImmutableTree{}}}, fmt.Errorf("version mismatch on immutable IAVL tree; version does not exist. Version has either been pruned, or is for a future block height")
+		return &Store{tree: &immutableTree{&iavl.ImmutableTree{}}}, nil
 	}
 
 	iTree, err := st.tree.GetImmutable(version)

types/module/module.go

@@ -344,8 +344,19 @@ func (m *Manager) InitGenesis(ctx sdk.Context, cdc codec.JSONCodec, genesisData
 // ExportGenesis performs export genesis functionality for modules
 func (m *Manager) ExportGenesis(ctx sdk.Context, cdc codec.JSONCodec) map[string]json.RawMessage {
 	genesisData := make(map[string]json.RawMessage)
+	var channels []chan json.RawMessage
+
 	for _, moduleName := range m.OrderExportGenesis {
-		genesisData[moduleName] = m.Modules[moduleName].ExportGenesis(ctx, cdc)
+		channels = append(channels, make(chan json.RawMessage))
+
+		go func(moduleName string, cdc codec.JSONCodec, ch chan json.RawMessage) {
+			ch <- m.Modules[moduleName].ExportGenesis(ctx, cdc)
+			close(ch)
+		}(moduleName, cdc, channels[len(channels)-1])
+	}
+
+	for i, moduleName := range m.OrderExportGenesis {
+		genesisData[moduleName] = <-channels[i]
 	}
 
 	return genesisData