From cd85edd64d354699d5bfcdbdc582014f9ecb9570 Mon Sep 17 00:00:00 2001
From: Kakashi Liu <kakashi1000@gmail.com>
Date: Fri, 21 Jan 2022 23:28:51 +0800
Subject: [PATCH] Fix: fallback to memory persistence if redis not found

resolve #438
Fix bollmaker backtest error
---
 pkg/bbgo/persistence.go | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/pkg/bbgo/persistence.go b/pkg/bbgo/persistence.go
index 8f8e45e81..665813b35 100644
--- a/pkg/bbgo/persistence.go
+++ b/pkg/bbgo/persistence.go
@@ -4,6 +4,7 @@ import (
 	"fmt"
 
 	"github.com/c9s/bbgo/pkg/service"
+	log "github.com/sirupsen/logrus"
 )
 
 type PersistenceSelector struct {
@@ -27,6 +28,10 @@ func (p *Persistence) backendService(t string) (service.PersistenceService, erro
 		return p.Facade.Json, nil
 
 	case "redis":
+		if p.Facade.Redis == nil {
+			log.Warn("redis persistence is not available, fallback to memory backend")
+			return p.Facade.Memory, nil
+		}
 		return p.Facade.Redis, nil
 
 	case "memory":