From 5ae4b963a47a98426392b5434a9c3e26ad550e27 Mon Sep 17 00:00:00 2001 From: Chris Lu Date: Tue, 19 Mar 2019 22:20:14 -0700 Subject: [PATCH] avoid using global rand --- weed/wdclient/vid_map.go | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/weed/wdclient/vid_map.go b/weed/wdclient/vid_map.go index aef29f56f..64c24a809 100644 --- a/weed/wdclient/vid_map.go +++ b/weed/wdclient/vid_map.go @@ -7,6 +7,7 @@ import ( "strconv" "strings" "sync" + "time" "github.com/chrislusf/seaweedfs/weed/glog" ) @@ -19,11 +20,13 @@ type Location struct { type vidMap struct { sync.RWMutex vid2Locations map[uint32][]Location + r *rand.Rand } func newVidMap() vidMap { return vidMap{ vid2Locations: make(map[uint32][]Location), + r: rand.New(rand.NewSource(time.Now().UnixNano())), } } @@ -39,7 +42,7 @@ func (vc *vidMap) LookupVolumeServerUrl(vid string) (serverUrl string, err error return "", fmt.Errorf("volume %d not found", id) } - return locations[rand.Intn(len(locations))].Url, nil + return locations[vc.r.Intn(len(locations))].Url, nil } func (vc *vidMap) LookupFileId(fileId string) (fullUrl string, err error) {