loop through all masters

weed/server/filer_server.go

@@ -130,13 +130,15 @@ func maybeStartMetrics(fs *FilerServer, option *FilerOption) {
 	var metricsIntervalSec int
 	var readErr error
 	for !isConnected {
-		metricsAddress, metricsIntervalSec, readErr = readFilerConfiguration(fs.grpcDialOption, option.Masters[0])
+		for _, master := range option.Masters {
+			metricsAddress, metricsIntervalSec, readErr = readFilerConfiguration(fs.grpcDialOption, master)
 			if readErr == nil {
 				isConnected = true
 			} else {
 				time.Sleep(7 * time.Second)
 			}
 		}
+	}
 	if metricsAddress == "" && metricsIntervalSec <= 0 {
 		return
 	}