1 files changed, 0 insertions, 44 deletions
diff --git a/weed/filesys/page_writer_pattern.go b/weed/filesys/page_writer_pattern.go
deleted file mode 100644
index 51c63d472..000000000
--- a/weed/filesys/page_writer_pattern.go
+++ /dev/null
@@ -1,44 +0,0 @@
-package filesys
-
-type WriterPattern struct {
-	isStreaming     bool
-	lastWriteOffset int64
-	chunkSize       int64
-}
-
-// For streaming write: only cache the first chunk
-// For random write: fall back to temp file approach
-// writes can only change from streaming mode to non-streaming mode
-
-func NewWriterPattern(chunkSize int64) *WriterPattern {
-	return &WriterPattern{
-		isStreaming:     true,
-		lastWriteOffset: -1,
-		chunkSize:       chunkSize,
-	}
-}
-
-func (rp *WriterPattern) MonitorWriteAt(offset int64, size int) {
-	if rp.lastWriteOffset > offset {
-		rp.isStreaming = false
-	}
-	if rp.lastWriteOffset == -1 {
-		if offset != 0 {
-			rp.isStreaming = false
-		}
-	}
-	rp.lastWriteOffset = offset
-}
-
-func (rp *WriterPattern) IsStreamingMode() bool {
-	return rp.isStreaming
-}
-
-func (rp *WriterPattern) IsRandomMode() bool {
-	return !rp.isStreaming
-}
-
-func (rp *WriterPattern) Reset() {
-	rp.isStreaming = true
-	rp.lastWriteOffset = -1
-}