From 757c7d67adaa58ca710bf39cfa87fd4fc23c756b Mon Sep 17 00:00:00 2001
From: Chris Lu <chris.lu@gmail.com>
Date: Thu, 27 Feb 2020 00:07:25 -0800
Subject: [PATCH] avoid nil DataBackend

---
 weed/storage/volume_vacuum.go | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/weed/storage/volume_vacuum.go b/weed/storage/volume_vacuum.go
index db9765cff..34e3db66b 100644
--- a/weed/storage/volume_vacuum.go
+++ b/weed/storage/volume_vacuum.go
@@ -91,8 +91,10 @@ func (v *Volume) CommitCompact() error {
 
 	glog.V(3).Infof("Got volume %d committing lock...", v.Id)
 	v.nm.Close()
-	if err := v.DataBackend.Close(); err != nil {
-		glog.V(0).Infof("fail to close volume %d", v.Id)
+	if v.DataBackend != nil {
+		if err := v.DataBackend.Close(); err != nil {
+			glog.V(0).Infof("fail to close volume %d", v.Id)
+		}
 	}
 	v.DataBackend = nil
 	stats.VolumeServerVolumeCounter.WithLabelValues(v.Collection, "volume").Dec()