{"id":204973,"date":"2025-05-29T08:00:34","date_gmt":"2025-05-29T00:00:34","guid":{"rendered":"https:\/\/server.hk\/cnblog\/204973\/"},"modified":"2025-05-29T08:00:34","modified_gmt":"2025-05-29T00:00:34","slug":"%e4%b8%ba%e4%bb%80%e4%b9%88%e5%bf%ab%e9%80%9f%e5%85%b3%e9%97%ad-tcp-%e8%bf%9e%e6%8e%a5%e4%bc%9a%e5%af%bc%e8%87%b4%e7%ab%af%e5%8f%a3%e5%a4%84%e4%ba%8e-time_wait-%e7%8a%b6%e6%80%81%ef%bc%8c%e5%a6%82","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/204973\/","title":{"rendered":"\u4e3a\u4ec0\u4e48\u5feb\u901f\u5173\u95ed TCP \u8fde\u63a5\u4f1a\u5bfc\u81f4\u7aef\u53e3\u5904\u4e8e TIME_WAIT \u72b6\u6001\uff0c\u5982\u4f55\u89e3\u51b3\u7aef\u53e3\u5360\u7528\u95ee\u9898\uff1f"},"content":{"rendered":"

<\/b> <\/p>\n

\u4e3a\u4ec0\u4e48\u5feb\u901f\u5173\u95ed TCP \u8fde\u63a5\u4f1a\u5bfc\u81f4\u7aef\u53e3\u5904\u4e8e TIME_WAIT \u72b6\u6001\uff0c\u5982\u4f55\u89e3\u51b3\u7aef\u53e3\u5360\u7528\u95ee\u9898\uff1f<\/h1>\n

IT\u884c\u4e1a\u76f8\u5bf9\u4e8e\u4e00\u822c\u4f20\u7edf\u884c\u4e1a\uff0c\u53d1\u5c55\u66f4\u65b0\u901f\u5ea6\u66f4\u5feb\uff0c\u4e00\u65e6\u505c\u6b62\u4e86\u5b66\u4e60\uff0c\u5f88\u5feb\u5c31\u4f1a\u88ab\u884c\u4e1a\u6240\u6dd8\u6c70\u3002\u6240\u4ee5\u6211\u4eec\u9700\u8981\u8e0f\u8e0f\u5b9e\u5b9e\u7684\u4e0d\u65ad\u5b66\u4e60\uff0c\u7cbe\u8fdb\u81ea\u5df1\u7684\u6280\u672f\uff0c\u5c24\u5176\u662f\u521d\u5b66\u8005\u3002\u4eca\u5929\u7ed9\u5927\u5bb6\u6574\u7406\u4e86\u300a\u4e3a\u4ec0\u4e48\u5feb\u901f\u5173\u95ed TCP \u8fde\u63a5\u4f1a\u5bfc\u81f4\u7aef\u53e3\u5904\u4e8e TIME_WAIT \u72b6\u6001\uff0c\u5982\u4f55\u89e3\u51b3\u7aef\u53e3\u5360\u7528\u95ee\u9898\uff1f\u300b\uff0c\u804a\u804a\uff0c\u6211\u4eec\u4e00\u8d77\u6765\u770b\u770b\u5427\uff01<\/p>\n

<\/p>\n

\u7406\u89e3 tcp \u7aef\u53e3\u7684 time_wait \u72b6\u6001<\/strong><\/p>\n

\u5f53 tcp \u8fde\u63a5\u88ab\u5feb\u901f\u5173\u95ed\uff08\u5373\u610f\u5916\u7ec8\u6b62\uff09\u65f6\uff0c\u7528\u4e8e\u8be5\u8fde\u63a5\u7684\u7aef\u53e3\u5c06\u8fdb\u5165 time_wait \u72b6\u6001\u3002\u5728\u6b64\u72b6\u6001\u4e0b\uff0c\u7aef\u53e3\u53ef\u4ee5\u5728\u4e00\u6bb5\u65f6\u95f4\u5185\uff08\u901a\u5e38\u4e3a 240 \u79d2\uff09\u5185\u65e0\u6cd5\u88ab\u91cd\u65b0\u4f7f\u7528\u3002\u8fd9\u662f\u4e3a\u4e86\u9632\u6b62\u7f51\u7edc\u5305\u5ef6\u8fdf\u5230\u8fbe\u5bfc\u81f4\u8fde\u63a5\u6df7\u4e71\u3002<\/p>\n

\u672c\u4f8b\u4e2d\u7684\u7aef\u53e3\u5360\u7528<\/strong><\/p>\n

\u5728\u4f60\u7684\u6848\u4f8b\u4e2d\uff0c\u5f53\u4f60\u5feb\u901f\u5173\u95ed\u670d\u52a1\u7aef\u540e\uff0c\u7528\u4e8e\u8be5\u670d\u52a1\u5668\u7684 6001 \u7aef\u53e3\u8fdb\u5165 time_wait \u72b6\u6001\u3002\u6b64\u65f6\uff0c\u8be5\u7aef\u53e3\u65e0\u6cd5\u88ab\u5176\u4ed6\u8fdb\u7a0b\u7ed1\u5b9a\uff0c\u4ece\u800c\u5bfc\u81f4\u518d\u6b21\u542f\u52a8\u670d\u52a1\u7aef\u65f6\u51fa\u73b0 address already in use \u9519\u8bef\u3002<\/p>\n

\u89e3\u51b3\u65b9\u6848\uff1a\u4f7f\u7528 so_reuseaddr<\/strong><\/p>\n

\u4e3a\u4e86\u89e3\u51b3\u8fd9\u79cd\u60c5\u51b5\uff0c\u53ef\u4ee5\u5728\u4fa6\u542c\u7aef\u53e3\u4e4b\u524d\u5411\u670d\u52a1\u5668\u5957\u63a5\u5b57\u8bbe\u7f6e so_reuseaddr \u9009\u9879\u3002\u6b64\u9009\u9879\u5141\u8bb8\u7aef\u53e3\u5728 time_wait \u72b6\u6001\u4e0b\u88ab\u91cd\u7528\u3002\u5177\u4f53\u6765\u8bf4\uff0c\u5728\u4f60\u7684\u4ee3\u7801\u4e2d\uff0c\u9700\u8981\u6dfb\u52a0\u4ee5\u4e0b\u884c\uff1a<\/p>\n

serversocket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)<\/pre>\n
\u5176\u4ed6\u9009\u9879<\/strong><\/p>\n
\u9664\u4e86 so_reuseaddr\uff0clinux \u5185\u6838\u8fd8\u63d0\u4f9b so_reuseport \u9009\u9879\uff0c\u5b83\u66f4\u7cbe\u7ec6\u5316\u5730\u5141\u8bb8\u591a\u4e2a\u8fdb\u7a0b\u540c\u65f6\u4fa6\u542c\u540c\u4e00\u7aef\u53e3\u3002windows \u4e0a\uff0c\u9700\u8981\u8bbe\u7f6e so_exclusiveaddruse \u9009\u9879\u4ee5\u9632\u6b62\u5176\u4ed6\u8fdb\u7a0b\u7ed1\u5b9a\u76f8\u540c\u7684\u7aef\u53e3\u3002<\/p>\n
\u672c\u7bc7\u5173\u4e8e\u300a\u4e3a\u4ec0\u4e48\u5feb\u901f\u5173\u95ed TCP \u8fde\u63a5\u4f1a\u5bfc\u81f4\u7aef\u53e3\u5904\u4e8e TIME_WAIT \u72b6\u6001\uff0c\u5982\u4f55\u89e3\u51b3\u7aef\u53e3\u5360\u7528\u95ee\u9898\uff1f\u300b\u7684\u4ecb\u7ecd\u5c31\u5230\u6b64\u7ed3\u675f\u5566\uff0c\u4f46\u662f\u5b66\u65e0\u6b62\u5883\uff0c\u60f3\u8981\u4e86\u89e3\u5b66\u4e60\u66f4\u591a\u5173\u4e8e\u6587\u7ae0\u7684\u76f8\u5173\u77e5\u8bc6\uff0c\u8bf7\u5173\u6ce8\u516c\u4f17\u53f7\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
\u4e3a\u4ec0\u4e48\u5feb\u901f\u5173\u95ed TCP \u8fde\u63a5\u4f1a\u5bfc...<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4925],"tags":[],"class_list":["post-204973","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/204973","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=204973"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/204973\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=204973"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=204973"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=204973"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}