Fix judge get index addrs

src/modules/judge/backend/query/index.go

+package query
+
+import (
+	"fmt"
+	"sync"
+	"time"
+
+	"github.com/didi/nightingale/src/toolkits/report"
+	"github.com/didi/nightingale/src/toolkits/stats"
+
+	"github.com/toolkits/pkg/logger"
+)
+
+var IndexList IndexAddrs
+
+type IndexAddrs struct {
+	sync.RWMutex
+	Data []string
+}
+
+func (i *IndexAddrs) Set(addrs []string) {
+	i.Lock()
+	defer i.Unlock()
+	i.Data = addrs
+}
+
+func (i *IndexAddrs) Get() []string {
+	i.RLock()
+	defer i.RUnlock()
+	return i.Data
+}
+
+func GetIndexLoop() {
+	t1 := time.NewTicker(time.Duration(9) * time.Second)
+	GetIndex()
+	for {
+		<-t1.C
+		GetIndex()
+	}
+}
+
+func GetIndex() {
+	instances, err := report.GetAlive("index", "monapi")
+	if err != nil {
+		stats.Counter.Set("get.index.err", 1)
+		logger.Warningf("get index list err:%v", err)
+		return
+	}
+
+	activeIndexs := []string{}
+	for _, instance := range instances {
+		activeIndexs = append(activeIndexs, fmt.Sprintf("%s:%s", instance.Identity, instance.HTTPPort))
+	}
+
+	IndexList.Set(activeIndexs)
+	return
+}

src/modules/judge/backend/query/init.go

@@ -28,4 +28,6 @@ func Init(cfg SeriesQuerySection) {
 	TransferConnPools = pools.NewConnPools(
 		Config.MaxConn, Config.MaxIdle, Config.ConnTimeout, Config.CallTimeout, address.GetRPCAddresses("transfer"),
 	)
+
+	go GetIndexLoop()
 }

src/modules/judge/backend/query/query.go

@@ -9,7 +9,6 @@ import (
 
 	"github.com/didi/nightingale/src/dataobj"
 	"github.com/didi/nightingale/src/modules/judge/cache"
-	"github.com/didi/nightingale/src/toolkits/address"
 	"github.com/didi/nightingale/src/toolkits/stats"
 	"github.com/didi/nightingale/src/toolkits/str"
 
@@ -186,7 +185,7 @@ type IndexResp struct {
 
 // index的xclude 不支持批量查询, 暂时不做
 func Xclude(request *IndexReq) ([]IndexData, error) {
-	addrs := address.GetHTTPAddresses("index")
+	addrs := IndexList.Get()
 	if len(addrs) == 0 {
 		return nil, errors.New("empty index addr")
 	}