default redis reads options

details in https://github.com/chrislusf/seaweedfs/pull/1165

weed/command/scaffold.go

@@ -136,8 +136,10 @@ addresses = [
     "localhost:30006",
 ]
 password = ""
-readOnly = false
-routeByLatency = false
+// allows reads from slave servers or the master, but all writes still go to the master
+readOnly = true
+// automatically use the closest Redis server for reads
+routeByLatency = true
 
 [etcd]
 enabled = false

weed/filer2/redis/redis_cluster_store.go

@@ -20,6 +20,9 @@ func (store *RedisClusterStore) GetName() string {
 
 func (store *RedisClusterStore) Initialize(configuration util.Configuration) (err error) {
 
+	configuration.SetDefault("useReadOnly", true)
+	configuration.SetDefault("routeByLatency", true)
+
 	return store.initialize(
 		configuration.GetStringSlice("addresses"),
 		configuration.GetString("password"),