2 files changed, 19 insertions, 3 deletions
diff --git a/weed/storage/disk_location.go b/weed/storage/disk_location.go
index 289fd3b47..847324838 100644
--- a/weed/storage/disk_location.go
+++ b/weed/storage/disk_location.go
@@ -44,13 +44,11 @@ func GenerateDirUuid(dir string) (dirUuidString string, err error) {
 		dirUuidString = dirUuid.String()
 		writeErr := util.WriteFile(fileName, []byte(dirUuidString), 0644)
 		if writeErr != nil {
-			glog.Warningf("failed to write uuid to %s : %v", fileName, writeErr)
 			return "", fmt.Errorf("failed to write uuid to %s : %v", fileName, writeErr)
 		}
 	} else {
 		uuidData, readErr := os.ReadFile(fileName)
 		if readErr != nil {
-			glog.Warningf("failed to read uuid from %s : %v", fileName, readErr)
 			return "", fmt.Errorf("failed to read uuid from %s : %v", fileName, readErr)
 		}
 		dirUuidString = string(uuidData)
@@ -65,7 +63,10 @@ func NewDiskLocation(dir string, maxVolumeCount int, minFreeSpace util.MinFreeSp
 	} else {
 		idxDir = util.ResolvePath(idxDir)
 	}
-	dirUuid, _ := GenerateDirUuid(dir)
+	dirUuid, err := GenerateDirUuid(dir)
+	if err != nil {
+		glog.Fatalf("cannot generate uuid of dir %s: %v", dir, err)
+	}
 	location := &DiskLocation{
 		Directory:              dir,
 		DirectoryUuid:          dirUuid,
diff --git a/weed/storage/needle_map/compact_map_test.go b/weed/storage/needle_map/compact_map_test.go
index 199cb26b3..afe12ee72 100644
--- a/weed/storage/needle_map/compact_map_test.go
+++ b/weed/storage/needle_map/compact_map_test.go
@@ -2,10 +2,25 @@ package needle_map
 
 import (
 	"fmt"
+	"github.com/chrislusf/seaweedfs/weed/sequence"
 	. "github.com/chrislusf/seaweedfs/weed/storage/types"
 	"testing"
 )
 
+func TestSnowflakeSequencer(t *testing.T) {
+	m := NewCompactMap()
+	seq, _ := sequence.NewSnowflakeSequencer("for_test", 1)
+
+	for i := 0; i < 200000; i++ {
+		id := seq.NextFileId(1)
+		oldOffset, oldSize := m.Set(NeedleId(id), ToOffset(8), 3000073)
+		if oldSize != 0 {
+			t.Errorf("id %d oldOffset %v oldSize %d", id, oldOffset, oldSize)
+		}
+	}
+
+}
+
 func TestOverflow2(t *testing.T) {
 	m := NewCompactMap()
 	_, oldSize := m.Set(NeedleId(150088), ToOffset(8), 3000073)