分布式系统通信中间件开发的必要性及前景

The Necessity and Future of Divisional Inter Process Communication

在大型的应用系统,尤其是网络应用系统的设计中,进程间通信是一种充分利用系统资源、提高程序运行效率的良好方法。但是,现有的通信方式,无论是UNIX系统中套接字方式,还是PVM中提供的报文传递方式,都不能满足用户编程的需要。因此,提出一种用户使用简单,并且很好地保证位置透明性和访问透明性的分布式进程通信机制势在必行。与此同时,应用新设计的分布式进程间通信机制,对原有的单机UNIX系统上的并发程序做简单的改动,甚至不做任何改动,就可以实现其在分布式系统上并行执行。

In large applied systems, esp. in the designing of network applied systems, inter process communication is a good method to make full use of system source and improve the efficiency of system operation. But, present communication method, no matter it is the socket in UNIX or Message-passing in PVM, can not meet the needs of programming. So it is the tendency to find a simple and clear divisional inter process communication. Meanwhile, we can make only a few, even no changes in UNIX system by means of the mew communication system to operate it.