From bdfed16d42cc49b0a3c2e925a1784f12c986c768 Mon Sep 17 00:00:00 2001
From: Chris Lu <chris.lu@gmail.com>
Date: Sun, 7 Mar 2021 01:49:06 -0800
Subject: [PATCH] avoid nil exception

fix https://github.com/chrislusf/seaweedfs/issues/1869
---
 weed/storage/needle_map_leveldb.go | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/weed/storage/needle_map_leveldb.go b/weed/storage/needle_map_leveldb.go
index 9716e9729..31c86d124 100644
--- a/weed/storage/needle_map_leveldb.go
+++ b/weed/storage/needle_map_leveldb.go
@@ -152,8 +152,10 @@ func (m *LevelDbNeedleMap) Close() {
 		glog.Warningf("close index file %s failed: %v", indexFileName, err)
 	}
 
-	if err := m.db.Close(); err != nil {
-		glog.Warningf("close levelDB failed: %v", err)
+	if m.db != nil {
+		if err := m.db.Close(); err != nil {
+			glog.Warningf("close levelDB failed: %v", err)
+		}
 	}
 }