From 4b7fe70cd32a0b4fc36ec938647e1012d4b5a9a2 Mon Sep 17 00:00:00 2001
From: runner <runner.mei@gmail.com>
Date: Sun, 24 Jan 2016 12:06:51 +0800
Subject: [PATCH] fix determine the file size

fix determine the file size
---
 tsdb/engine/tsm1/reader.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tsdb/engine/tsm1/reader.go b/tsdb/engine/tsm1/reader.go
index c6e95efbd7..0c80f64d96 100644
--- a/tsdb/engine/tsm1/reader.go
+++ b/tsdb/engine/tsm1/reader.go
@@ -120,7 +120,7 @@ func NewTSMReaderWithOptions(opt TSMReaderOptions) (*TSMReader, error) {
 	t := &TSMReader{}
 	if opt.Reader != nil {
 		// Seek to the end of the file to determine the size
-		size, err := opt.Reader.Seek(2, 0)
+		size, err := opt.Reader.Seek(0, os.SEEK_END)
 		if err != nil {
 			return nil, err
 		}