3 files changed, 6 insertions, 4 deletions
diff --git a/go/topology/node_list_test.go b/go/topology/node_list_test.go
index c7b165ea6..c526f55f8 100644
--- a/go/topology/node_list_test.go
+++ b/go/topology/node_list_test.go
@@ -1,13 +1,14 @@
 package topology
 
 import (
+	"code.google.com/p/weed-fs/go/sequence"
 	_ "fmt"
 	"strconv"
 	"testing"
 )
 
 func TestXYZ(t *testing.T) {
-	topo, err := NewTopology("topo", "/etc/weed.conf", "/tmp", "test", 234, 5)
+	topo, err := NewTopology("topo", "/etc/weed.conf", sequence.NewMemorySequencer(), 234, 5)
 	if err != nil {
 		t.Error("cannot create new topology:", err)
 		t.FailNow()
diff --git a/go/topology/topo_test.go b/go/topology/topo_test.go
index d5ea08086..36f4963db 100644
--- a/go/topology/topo_test.go
+++ b/go/topology/topo_test.go
@@ -1,6 +1,7 @@
 package topology
 
 import (
+	"code.google.com/p/weed-fs/go/sequence"
 	"code.google.com/p/weed-fs/go/storage"
 	"encoding/json"
 	"fmt"
@@ -78,7 +79,7 @@ func setup(topologyLayout string) *Topology {
 	}
 
 	//need to connect all nodes first before server adding volumes
-	topo, err := NewTopology("mynetwork", "/etc/weed.conf", "/tmp", "test", 234, 5)
+	topo, err := NewTopology("mynetwork", "/etc/weed.conf", sequence.NewMemorySequencer(), 234, 5)
 	if err != nil {
 		fmt.Println("error:", err)
 	}
diff --git a/go/topology/topology.go b/go/topology/topology.go
index d0e9fb42b..b21601210 100644
--- a/go/topology/topology.go
+++ b/go/topology/topology.go
@@ -28,7 +28,7 @@ type Topology struct {
 	configuration *Configuration
 }
 
-func NewTopology(id string, confFile string, dirname string, sequenceFilename string, volumeSizeLimit uint64, pulse int) (*Topology, error) {
+func NewTopology(id string, confFile string, seq sequence.Sequencer, volumeSizeLimit uint64, pulse int) (*Topology, error) {
 	t := &Topology{}
 	t.id = NodeId(id)
 	t.nodeType = "Topology"
@@ -38,7 +38,7 @@ func NewTopology(id string, confFile string, dirname string, sequenceFilename st
 	t.pulse = int64(pulse)
 	t.volumeSizeLimit = volumeSizeLimit
 
-	t.sequence = sequence.NewSequencer(dirname, sequenceFilename)
+	t.sequence = seq
 
 	t.chanDeadDataNodes = make(chan *DataNode)
 	t.chanRecoveredDataNodes = make(chan *DataNode)