From 987a90d149d90610b6ff8937fda169f02070c8ea Mon Sep 17 00:00:00 2001
From: Fabian Reinartz <fab.reinartz@gmail.com>
Date: Sat, 11 Feb 2017 11:49:17 -0800
Subject: [PATCH] Don't delete files if retention duration is 0

---
 db.go | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/db.go b/db.go
index 261a79629b..9e7c4304f4 100644
--- a/db.go
+++ b/db.go
@@ -292,6 +292,9 @@ func (db *DB) compact(i, j int) error {
 }
 
 func (db *DB) retentionCutoff() error {
+	if db.opts.RetentionDuration == 0 {
+		return nil
+	}
 	h := db.heads[len(db.heads)-1]
 	t := h.meta.MinTime - int64(db.opts.RetentionDuration)