From 56d85d44ad340e46a2e28d0c5e3745101ff0df77 Mon Sep 17 00:00:00 2001
From: Jason Wilder <mail@jasonwilder.com>
Date: Mon, 26 Oct 2015 13:16:32 -0600
Subject: [PATCH] Use RemoveAll instead of Remove

When a database is dropped, removing old segments returns an error
because the files are already gone.  Using RemoveAll handles this
case more gracefully.
---
 tsdb/engine/tsm1/wal.go | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tsdb/engine/tsm1/wal.go b/tsdb/engine/tsm1/wal.go
index f4eb27fa60..558f721399 100644
--- a/tsdb/engine/tsm1/wal.go
+++ b/tsdb/engine/tsm1/wal.go
@@ -659,9 +659,9 @@ func (l *Log) flush(flush flushType) error {
 			return err
 		}
 		if id <= lastFileID {
-			err := os.Remove(fn)
+			err := os.RemoveAll(fn)
 			if err != nil {
-				return err
+				return fmt.Errorf("failed to remove: %v: %v", fn, err)
 			}
 		}
 	}