From 63619f8b8e837156d2b486f08f538eabd23f687c Mon Sep 17 00:00:00 2001
From: Chris Lu <chris.lu@gmail.com>
Date: Thu, 6 Dec 2018 00:32:36 -0800
Subject: [PATCH] fail early if two filer stores are defined

---
 weed/filer2/configuration.go | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/weed/filer2/configuration.go b/weed/filer2/configuration.go
index 14a9edd2c..4b20b608b 100644
--- a/weed/filer2/configuration.go
+++ b/weed/filer2/configuration.go
@@ -13,6 +13,17 @@ var (
 
 func (f *Filer) LoadConfiguration(config *viper.Viper) {
 
+	enabledStore := ""
+	for _, store := range Stores {
+		if config.GetBool(store.GetName() + ".enabled") {
+			if enabledStore == "" {
+				enabledStore = store.GetName()
+			} else {
+				glog.Fatalf("Filer store is enabled for both %s and %s", enabledStore, store.GetName())
+			}
+		}
+	}
+
 	for _, store := range Stores {
 		if config.GetBool(store.GetName() + ".enabled") {
 			viperSub := config.Sub(store.GetName())