优化RPC连接

build/build.sh

@@ -43,6 +43,10 @@ function build() {
 	echo "building ..."
 	env GOOS=${OS} GOARCH=${ARCH} go build -o $DIST/bin/${NAME} -ldflags="-s -w" $ROOT/../cmd/edge-node/main.go
 
+	# delete hidden files
+	find $DIST -name ".DS_Store" -delete
+	find $DIST -name ".gitignore" -delete
+
 	echo "zip files"
 	cd "${DIST}/../" || exit
 	if [ -f "${ZIP}" ]; then

internal/rpc/rpc_client.go

@@ -190,6 +190,11 @@ func (this *RPCClient) pickConn() *grpc.ClientConn {
 		if len(availableConns) > 0 {
 			return availableConns[rands.Int(0, len(availableConns)-1)]
 		}
+
+		// 关闭
+		for _, conn := range this.conns {
+			_ = conn.Close()
+		}
 	}
 
 	// 重新初始化