短小请求引起丢失数据 ---------------------------------------- Nginx提前销毁一个请求的可能（至少）： * 400 (Bad Request) -- 错误请求 * 405 (Not Allowed) -- 不允许 * 408 (Request Timeout) -- 请求超时 * 414 (Request URI Too Large) -- 请求URI过大 * 494 (Request Headers Too Large) -- 请求Headers过大 * 499 (Client Closed Request) -- 客户端关闭请求 * 500 (Internal Server Error) -- 内部服务错误 * 501 (Not Implemented) -- 未实现 这意味着正常执行阶段被跳过，如重写或访问阶段。这也意味着，后面的所有阶段，例如 [log_by_lua](#log_by_lua)，将无法获得在这个阶段存放的普通信息。 [返回目录](#table-of-contents) > English source: Missing data on short circuited requests ---------------------------------------- Nginx may terminate a request early with (at least): * 400 (Bad Request) * 405 (Not Allowed) * 408 (Request Timeout) * 414 (Request URI Too Large) * 494 (Request Headers Too Large) * 499 (Client Closed Request) * 500 (Internal Server Error) * 501 (Not Implemented) This means that phases that normally run are skipped, such as the rewrite or access phase. This also means that later phases that are run regardless, e.g. [log_by_lua](#log_by_lua), will not have access to information that is normally set in those phases. [Back to TOC](#table-of-contents)