From 61553beba280d75f6676a57c2be41b57f519823c Mon Sep 17 00:00:00 2001
From: wusong <75450248+wusongANKANG@users.noreply.github.com>
Date: Wed, 5 Jul 2023 14:22:10 +0800
Subject: [PATCH] Fix DataBackend nil pointer (#4641)

---
 weed/storage/store_vacuum.go | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/weed/storage/store_vacuum.go b/weed/storage/store_vacuum.go
index 26cd370a4..531d859b8 100644
--- a/weed/storage/store_vacuum.go
+++ b/weed/storage/store_vacuum.go
@@ -33,7 +33,10 @@ func (s *Store) CommitCompactVolume(vid needle.VolumeId) (bool, int64, error) {
 	if v := s.findVolume(vid); v != nil {
 		isReadOnly := v.IsReadOnly()
 		err := v.CommitCompact()
-		volumeSize, _, _ := v.DataBackend.GetStat()
+		var volumeSize int64 = 0
+		if err == nil && v.DataBackend != nil {
+			volumeSize, _, _ = v.DataBackend.GetStat()
+		}
 		return isReadOnly, volumeSize, err
 	}
 	return false, 0, fmt.Errorf("volume id %d is not found during commit compact", vid)