diff --git a/weed/filer/stream.go b/weed/filer/stream.go
index 395d797cc..9e3bb5f76 100644
--- a/weed/filer/stream.go
+++ b/weed/filer/stream.go
@@ -300,13 +300,13 @@ func (c *ChunkStreamReader) prepareBufferFor(offset int64) (err error) {
 	if c.bufferOffset <= offset && offset < c.bufferOffset+int64(len(c.buffer)) {
 		return nil
 	}
-	glog.V(2).Infof("c.chunkView: %v buffer:[%d,%d) offset:%d totalSize:%d", c.chunkView, c.bufferOffset, c.bufferOffset+int64(len(c.buffer)), offset, c.totalSize)
+	// glog.V(2).Infof("c.chunkView: %v buffer:[%d,%d) offset:%d totalSize:%d", c.chunkView, c.bufferOffset, c.bufferOffset+int64(len(c.buffer)), offset, c.totalSize)
 
 	// find a possible chunk view
 	p := c.chunkView
 	for p != nil {
 		chunk := p.Value
-		glog.V(2).Infof("prepareBufferFor check chunk:[%d,%d)", chunk.ViewOffset, chunk.ViewOffset+int64(chunk.ViewSize))
+		// glog.V(2).Infof("prepareBufferFor check chunk:[%d,%d)", chunk.ViewOffset, chunk.ViewOffset+int64(chunk.ViewSize))
 		if insideChunk(offset, chunk) {
 			if c.isBufferEmpty() || c.bufferOffset != chunk.ViewOffset {
 				c.chunkView = p