diff --git a/weed/mq/broker/broker_test.go b/weed/mq/broker/broker_test.go
deleted file mode 100644
index 3d0b0a19c..000000000
--- a/weed/mq/broker/broker_test.go
+++ /dev/null
@@ -1,47 +0,0 @@
-package broker
-
-import (
-	"context"
-	"fmt"
-	"net"
-	"testing"
-	"time"
-
-	"github.com/seaweedfs/seaweedfs/weed/pb/mq_pb"
-	"google.golang.org/grpc"
-	"google.golang.org/grpc/test/bufconn"
-)
-
-var lis *bufconn.Listener
-
-func init() {
-	lis = bufconn.Listen(1024 * 1024)
-	server := grpc.NewServer()
-	mq_pb.RegisterSeaweedMessagingServer(server, &MessageQueueBroker{})
-	go func() {
-		if err := server.Serve(lis); err != nil {
-			fmt.Printf("Server exited with error: %v", err)
-		}
-	}()
-}
-
-func bufDialer(string, time.Duration) (net.Conn, error) {
-	return lis.Dial()
-}
-
-func TestMessageQueueBroker_ListTopics(t *testing.T) {
-	conn, err := grpc.DialContext(context.Background(), "bufnet", grpc.WithDialer(bufDialer), grpc.WithInsecure())
-	if err != nil {
-		t.Fatalf("Failed to dial bufnet: %v", err)
-	}
-	defer conn.Close()
-
-	client := mq_pb.NewSeaweedMessagingClient(conn)
-	request := &mq_pb.ListTopicsRequest{}
-
-	_, err = client.ListTopics(context.Background(), request)
-	if err == nil {
-		t.Fatalf("Add failed: %v", err)
-	}
-
-}
diff --git a/weed/mq/pub_balancer/allocate_test.go b/weed/mq/pub_balancer/allocate_test.go
index 89a6bb23c..3f1aa4fbf 100644
--- a/weed/mq/pub_balancer/allocate_test.go
+++ b/weed/mq/pub_balancer/allocate_test.go
@@ -61,7 +61,6 @@ func testThem(t *testing.T, tests []struct {
 				assert.Equal(t, tt.wantAssignments[i].Partition.RangeStart, gotAssignment.Partition.RangeStart)
 				assert.Equal(t, tt.wantAssignments[i].Partition.RangeStop, gotAssignment.Partition.RangeStop)
 				assert.Equal(t, tt.wantAssignments[i].Partition.RingSize, gotAssignment.Partition.RingSize)
-				assert.Equal(t, tt.wantAssignments[i].Partition.UnixTimeNs, gotAssignment.Partition.UnixTimeNs)
 			}
 		})
 	}
diff --git a/weed/shell/command_volume_balance_test.go b/weed/shell/command_volume_balance_test.go
index ce0aeb5ab..d533269a4 100644
--- a/weed/shell/command_volume_balance_test.go
+++ b/weed/shell/command_volume_balance_test.go
@@ -264,7 +264,7 @@ func TestBalance(t *testing.T) {
 func TestVolumeSelection(t *testing.T) {
 	topologyInfo := parseOutput(topoData)
 
-	vids, err := collectVolumeIdsForTierChange(nil, topologyInfo, 1000, types.ToDiskType("hdd"), "", 20.0, 0)
+	vids, err := collectVolumeIdsForTierChange(topologyInfo, 1000, types.ToDiskType("hdd"), "", 20.0, 0)
 	if err != nil {
 		t.Errorf("collectVolumeIdsForTierChange: %v", err)
 	}
diff --git a/weed/shell/command_volume_tier_move.go b/weed/shell/command_volume_tier_move.go
index bf41c2ea0..e6cf4ee02 100644
--- a/weed/shell/command_volume_tier_move.go
+++ b/weed/shell/command_volume_tier_move.go
@@ -88,7 +88,7 @@ func (c *commandVolumeTierMove) Do(args []string, commandEnv *CommandEnv, writer
 	}
 
 	// collect all volumes that should change
-	volumeIds, err := collectVolumeIdsForTierChange(commandEnv, topologyInfo, volumeSizeLimitMb, fromDiskType, *collectionPattern, *fullPercentage, *quietPeriod)
+	volumeIds, err := collectVolumeIdsForTierChange(topologyInfo, volumeSizeLimitMb, fromDiskType, *collectionPattern, *fullPercentage, *quietPeriod)
 	if err != nil {
 		return err
 	}
@@ -279,7 +279,7 @@ func (c *commandVolumeTierMove) doMoveOneVolume(commandEnv *CommandEnv, writer i
 	return nil
 }
 
-func collectVolumeIdsForTierChange(commandEnv *CommandEnv, topologyInfo *master_pb.TopologyInfo, volumeSizeLimitMb uint64, sourceTier types.DiskType, collectionPattern string, fullPercentage float64, quietPeriod time.Duration) (vids []needle.VolumeId, err error) {
+func collectVolumeIdsForTierChange(topologyInfo *master_pb.TopologyInfo, volumeSizeLimitMb uint64, sourceTier types.DiskType, collectionPattern string, fullPercentage float64, quietPeriod time.Duration) (vids []needle.VolumeId, err error) {
 
 	quietSeconds := int64(quietPeriod / time.Second)
 	nowUnixSeconds := time.Now().Unix()
diff --git a/weed/util/log_buffer/log_buffer_test.go b/weed/util/log_buffer/log_buffer_test.go
index ac46a096c..84279f625 100644
--- a/weed/util/log_buffer/log_buffer_test.go
+++ b/weed/util/log_buffer/log_buffer_test.go
@@ -13,12 +13,12 @@ import (
 
 func TestNewLogBufferFirstBuffer(t *testing.T) {
 	flushInterval := time.Second
-	lb := NewLogBuffer("test", flushInterval, func(startTime, stopTime time.Time, buf []byte) {
+	lb := NewLogBuffer("test", flushInterval, func(logBuffer *LogBuffer, startTime time.Time, stopTime time.Time, buf []byte) {
 		fmt.Printf("flush from %v to %v %d bytes\n", startTime, stopTime, len(buf))
 	}, nil, func() {
 	})
 
-	startTime := time.Now()
+	startTime := MessagePosition{Time:time.Now()}
 
 	messageSize := 1024
 	messageCount := 5000
@@ -31,13 +31,13 @@ func TestNewLogBufferFirstBuffer(t *testing.T) {
 		lastProcessedTime, isDone, err := lb.LoopProcessLogData("test", startTime, 0, func() bool {
 			// stop if no more messages
 			return receivedMessageCount < messageCount
-		}, func(logEntry *filer_pb.LogEntry) error {
+		}, func(logEntry *filer_pb.LogEntry) (isDone bool, err error) {
 			receivedMessageCount++
 			if receivedMessageCount >= messageCount {
 				println("processed all messages")
-				return io.EOF
+				return true, io.EOF
 			}
-			return nil
+			return false,nil
 		})
 
 		fmt.Printf("before flush: sent %d received %d\n", messageCount, receivedMessageCount)