#tcp Three-Way Handshake
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How well do you really know it? — Best practice from the Alibaba tech teamRen Xijun is a member of Alibaba’s middleware technology team. Recently, he encountered a problem with a client-side communication server that was constantly throwing an exception. But to his dismay, despite scouring the #internet for information and making repeated attempts to locate the cause, he could not find anything to help explain the two queues or how to observe their metrics.Undeterred, he took it upon himself to get to the bottom of the issue. He wrote this article to record how he identified and resolved the issue.An Annoying ProblemIn Java, the client and server were using a socket to communicate. In this case, a NIO server was being used. The following status occurred:· A three-way handshake was performed (...)