From 44af75fa984506f4bec071877510f09f1b824402 Mon Sep 17 00:00:00 2001
From: Ben Johnson <benbjohnson@yahoo.com>
Date: Mon, 18 Jan 2021 07:05:17 -0700
Subject: [PATCH] Fix missing WAL reader error

---
 s3/s3.go | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/s3/s3.go b/s3/s3.go
index 9bccc05..60b8634 100644
--- a/s3/s3.go
+++ b/s3/s3.go
@@ -859,6 +859,8 @@ func (r *Replica) WALReader(ctx context.Context, generation string, index int) (
 		return true
 	}); err != nil {
 		return nil, err
+	} else if len(keys) == 0 {
+		return nil, os.ErrNotExist
 	}
 
 	// Open each file and concatenate into a multi-reader.