From a067deaabcf9b7d6feb58e13dda24721da3e153e Mon Sep 17 00:00:00 2001
From: Chris Lu <chris.lu@gmail.com>
Date: Tue, 28 Sep 2021 16:54:18 -0700
Subject: [PATCH] avoid possible modified location list

fix issue 1 of https://github.com/chrislusf/seaweedfs/issues/2345
---
 weed/topology/volume_layout.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/weed/topology/volume_layout.go b/weed/topology/volume_layout.go
index f315cb7e4..db05102fe 100644
--- a/weed/topology/volume_layout.go
+++ b/weed/topology/volume_layout.go
@@ -302,7 +302,7 @@ func (vl *VolumeLayout) PickForWrite(count uint64, option *VolumeGrowOption) (*n
 				}
 				counter++
 				if rand.Intn(counter) < 1 {
-					vid, locationList = v, volumeLocationList
+					vid, locationList = v, volumeLocationList.Copy()
 				}
 			}
 		}