s3: wait to connect to filer

weed/command/s3.go

@@ -127,6 +127,7 @@ func (s3opt *S3Options) startS3Server() bool {
 
 	grpcDialOption := security.LoadClientTLS(util.GetViper(), "grpc.client")
 
+	for {
 		err = withFilerClient(filerGrpcAddress, grpcDialOption, func(client filer_pb.SeaweedFilerClient) error {
 			resp, err := client.GetFilerConfiguration(context.Background(), &filer_pb.GetFilerConfigurationRequest{})
 			if err != nil {
@@ -137,8 +138,12 @@ func (s3opt *S3Options) startS3Server() bool {
 			return nil
 		})
 		if err != nil {
-		glog.Fatal(err)
-		return false
+			glog.V(0).Infof("wait to connect to filer %s grpc address %s", *s3opt.filer, filerGrpcAddress)
+			time.Sleep(time.Second)
+		} else {
+			glog.V(0).Infof("connected to filer %s grpc address %s", *s3opt.filer, filerGrpcAddress)
+			break
+		}
 	}
 
 	router := mux.NewRouter().SkipClean(true)