diff --git a/pkg/clustersconfig/defaults.go b/pkg/clustersconfig/defaults.go
index d582b47..f515b6f 100644
--- a/pkg/clustersconfig/defaults.go
+++ b/pkg/clustersconfig/defaults.go
@@ -70,6 +70,7 @@ func (d *Defaults) Load(dir, suffix string, value Rev, data []byte) (err error)
 }
 
 func (d *Defaults) Open(rev, filePath string) (rd io.Reader, err error) {
+	log.Printf("openning defaults at %s:%s", rev, filePath)
 	tree, err := d.treeAt(rev)
 	if err != nil {
 		return
@@ -94,6 +95,7 @@ func (d *Defaults) ReadAll(rev, filePath string) (ba []byte, err error) {
 }
 
 func (d *Defaults) List(rev, dir string) (names []string, err error) {
+	log.Printf("listing defaults at %s:%s", rev, dir)
 	tree, err := d.treeAt(rev)
 	if err != nil {
 		return
@@ -130,6 +132,11 @@ func (d *Defaults) treeAt(rev string) (tree *object.Tree, err error) {
 			obj, err = o.Object()
 
 		case *object.Commit: // commit -> tree
+			msg := o.Message
+			if len(msg) > 30 {
+				msg = msg[:27] + "..."
+			}
+			log.Printf("open defaults at commit %s: %s", o.Hash.String()[:7], msg)
 			return o.Tree()
 
 		default: