From 6f1811ee4dddf995831cda4607d1c08318e519c9 Mon Sep 17 00:00:00 2001
From: Harshavardhana <harsha@minio.io>
Date: Tue, 3 May 2016 15:17:58 -0700
Subject: [PATCH] config: Migration should save region properly. (#1468)

Fixes #1466
---
 config-migrate.go | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/config-migrate.go b/config-migrate.go
index b0b92f50e..8015b9c42 100644
--- a/config-migrate.go
+++ b/config-migrate.go
@@ -73,6 +73,10 @@ func migrateV2ToV3() {
 		SecretAccessKey: cv2.Credentials.SecretAccessKey,
 	}
 	srvConfig.Region = cv2.Credentials.Region
+	if srvConfig.Region == "" {
+		// Region needs to be set for AWS Signature V4.
+		srvConfig.Region = "us-east-1"
+	}
 	srvConfig.Logger.Console = consoleLogger{
 		Enable: true,
 		Level:  "fatal",
@@ -124,6 +128,10 @@ func migrateV3ToV4() {
 	srvConfig.Version = globalMinioConfigVersion
 	srvConfig.Credential = cv3.Credential
 	srvConfig.Region = cv3.Region
+	if srvConfig.Region == "" {
+		// Region needs to be set for AWS Signature Version 4.
+		srvConfig.Region = "us-east-1"
+	}
 	srvConfig.Logger.Console = cv3.Logger.Console
 	srvConfig.Logger.File = cv3.Logger.File
 	srvConfig.Logger.Syslog = cv3.Logger.Syslog