本文探讨了在使用Node.js服务器进行小游戏压力测试时遇到的WebSocket连接异常断开问题。主要表现为有规律的断线现象，并提供了错误日志，包括(node:3073) UnhandledPromiseRejectionWarning等详细信息。
小游戏压测，有规律的websocket断掉，是什么原因？
nodejs服务器端有时会显示
(node:3073) UnhandledPromiseRejectionWarning: Error: socket hang up
at createHangUpError (_http_client.js:331:15)
at TLSSocket.socketOnEnd (_http_client.js:423:23)
at emitNone (events.js:111:20)
at TLSSocket.emit (events.js:208:7)
at endReadableNT (_stream_readable.js:1064:12)
at _combinedTickCallback (internal/process/next_tick.js:138:11)
at process._tickCallback (internal/process/next_tick.js:180:9)
(node:3073) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). (rejection id: 8)
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