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avoid using global rand

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This commit is contained in:
Chris Lu 2019-03-19 22:20:14 -07:00
parent f3d316a846
commit 5ae4b963a4
1 changed files with 4 additions and 1 deletions
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5
weed/wdclient/vid_map.go
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@ -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) {