From 9d062b37d7a2c3d8ec7d3d0c02731ef840891e57 Mon Sep 17 00:00:00 2001
From: jiuker <2818723467@qq.com>
Date: Sat, 4 Mar 2023 15:56:53 +0800
Subject: [PATCH] return underlying error with BackendDown{} error (#16738)

---
 cmd/disk-cache.go | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/cmd/disk-cache.go b/cmd/disk-cache.go
index 2c0e14e1a..c92773b1b 100644
--- a/cmd/disk-cache.go
+++ b/cmd/disk-cache.go
@@ -34,6 +34,7 @@ import (
 	"github.com/minio/minio/internal/hash"
 	"github.com/minio/minio/internal/logger"
 	"github.com/minio/minio/internal/sync/errgroup"
+	xnet "github.com/minio/pkg/net"
 	"github.com/minio/pkg/wildcard"
 )
 
@@ -447,7 +448,10 @@ func (c *cacheObjects) GetObjectInfo(ctx context.Context, bucket, object string,
 			return cachedObjInfo, nil
 		}
 		c.cacheStats.incMiss()
-		return ObjectInfo{}, BackendDown{}
+		if xnet.IsNetworkOrHostDown(err, false) {
+			return ObjectInfo{}, BackendDown{Err: err.Error()}
+		}
+		return ObjectInfo{}, err
 	}
 	// Reaching here implies cache miss
 	c.cacheStats.incMiss()