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在阅读权威指南Hadoop的书的第四章中,我发现下面的句子:我们在hadoop中使用RPC或SSH进行进程间通信吗?
In Hadoop, interprocess communication between nodes in the system is implemented using remote procedure calls (RPCs). The RPC protocol uses serialization to render the message into a binary stream to be sent to the remote node, which then deserializes the binary stream into the original message.
而且我知道,我们使用无密码的SSH 为机器之间的通信。
有人可以解释我我们使用什么RPC或SSH进行进程间通信?请澄清我的疑惑。
http://stackoverflow.com/questions/13909603/why-do-we-need-hadoop-passwordless-ssh – 2015-03-03 16:45:49