diff --git a/weed/command/filer_sync.go b/weed/command/filer_sync.go
index 292fb0956..9ad76e31b 100644
--- a/weed/command/filer_sync.go
+++ b/weed/command/filer_sync.go
@@ -394,7 +394,7 @@ func genProcessFunction(sourcePath string, targetPath string, excludePaths []str
 			glog.V(0).Infof("received %v", resp)
 		}
 
-		if isMultipartUploadDir(resp.Directory) {
+		if isMultipartUploadDir(resp.Directory + "/") {
 			return nil
 		}
 
diff --git a/weed/replication/sink/s3sink/s3_sink.go b/weed/replication/sink/s3sink/s3_sink.go
index 276ea30d6..81acd9a2d 100644
--- a/weed/replication/sink/s3sink/s3_sink.go
+++ b/weed/replication/sink/s3sink/s3_sink.go
@@ -175,18 +175,23 @@ func (s3sink *S3Sink) CreateEntry(key string, entry *filer_pb.Entry, signatures
 			uploader.PartSize = 0
 		}
 	}
-	if _, ok := entry.Extended[s3_constants.AmzUserMetaMtime]; !ok {
+
+	doSaveMtime := true
+	if entry.Extended == nil {
+		entry.Extended = make(map[string][]byte)
+	} else if _, ok := entry.Extended[s3_constants.AmzUserMetaMtime]; ok {
+		doSaveMtime = false
+	}
+	if doSaveMtime {
 		entry.Extended[s3_constants.AmzUserMetaMtime] = []byte(strconv.FormatInt(entry.Attributes.Mtime, 10))
 	}
 	// process tagging
 	tags := ""
-	if true {
-		for k, v := range entry.Extended {
-			if len(tags) > 0 {
-				tags = tags + "&"
-			}
-			tags = tags + k + "=" + string(v)
+	for k, v := range entry.Extended {
+		if len(tags) > 0 {
+			tags = tags + "&"
 		}
+		tags = tags + k + "=" + string(v)
 	}
 
 	// Upload the file to S3.
diff --git a/weed/util/log_buffer/log_read.go b/weed/util/log_buffer/log_read.go
index 866805c47..29ac88b18 100644
--- a/weed/util/log_buffer/log_read.go
+++ b/weed/util/log_buffer/log_read.go
@@ -57,7 +57,7 @@ func (logBuffer *LogBuffer) LoopProcessLogData(readerName string, startPosition
 		if bytesBuf != nil {
 			readSize = bytesBuf.Len()
 		}
-		glog.V(1).Infof("%s ReadFromBuffer at %v batch %d. Read bytes %v batch %d", readerName, lastReadPosition, lastReadPosition.BatchIndex, readSize, batchIndex)
+		glog.V(4).Infof("%s ReadFromBuffer at %v batch %d. Read bytes %v batch %d", readerName, lastReadPosition, lastReadPosition.BatchIndex, readSize, batchIndex)
 		if bytesBuf == nil {
 			if batchIndex >= 0 {
 				lastReadPosition = NewMessagePosition(lastReadPosition.UnixNano(), batchIndex)