{"id":198466,"date":"2024-11-14T18:38:53","date_gmt":"2024-11-14T10:38:53","guid":{"rendered":"https:\/\/server.hk\/cnblog\/198466\/"},"modified":"2024-11-14T18:38:53","modified_gmt":"2024-11-14T10:38:53","slug":"%e3%80%8clinux%e4%b8%8b%e5%ae%8fnofile%e3%80%8d-%e5%a6%82%e4%bd%95%e7%ae%a1%e7%90%86%e7%b3%bb%e7%b5%b1%e6%96%87%e4%bb%b6%e6%8f%8f%e8%bf%b0%e7%ac%a6%e6%95%b8%e9%87%8f-linux%e4%b8%8b","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/198466\/","title":{"rendered":"\u300cLinux\u4e0b\u5b8fnofile\u300d\u2014\u2014\u5982\u4f55\u7ba1\u7406\u7cfb\u7d71\u6587\u4ef6\u63cf\u8ff0\u7b26\u6578\u91cf (linux\u4e0b\u5b8fnofile)"},"content":{"rendered":"

\u300cLinux\u4e0b\u5b8fnofile\u300d\u2014\u2014\u5982\u4f55\u7ba1\u7406\u7cfb\u7d71\u6587\u4ef6\u63cf\u8ff0\u7b26\u6578\u91cf<\/h1>\n

\u5728Linux\u7cfb\u7d71\u4e2d\uff0c\u6587\u4ef6\u63cf\u8ff0\u7b26\uff08File Descriptor, FD\uff09\u662f\u7528\u4f86\u8868\u793a\u6253\u958b\u7684\u6587\u4ef6\u3001\u5957\u63a5\u5b57\u6216\u5176\u4ed6I\/O\u8cc7\u6e90\u7684\u6574\u6578\u3002\u6bcf\u500b\u9032\u7a0b\u5728\u904b\u884c\u6642\u90fd\u6709\u4e00\u500b\u6587\u4ef6\u63cf\u8ff0\u7b26\u8868\uff0c\u9019\u500b\u8868\u4e2d\u5305\u542b\u4e86\u8a72\u9032\u7a0b\u6240\u80fd\u4f7f\u7528\u7684\u6240\u6709\u6587\u4ef6\u63cf\u8ff0\u7b26\u3002Linux\u7cfb\u7d71\u5c0d\u6bcf\u500b\u9032\u7a0b\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\u6578\u91cf\u662f\u6709\u9650\u5236\u7684\uff0c\u9019\u500b\u9650\u5236\u7531\u5b8f\u4f86\u5b9a\u7fa9\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e\u5982\u4f55\u7ba1\u7406Linux\u7cfb\u7d71\u4e2d\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\u6578\u91cf\uff0c\u7279\u5225\u662f\u5982\u4f55\u4f7f\u7528\u5b8f\u4f86\u9032\u884c\u914d\u7f6e\u3002<\/p>\n

\u4ec0\u9ebc\u662fnofile\u5b8f\uff1f<\/h2>\n

\u5728Linux\u4e2d\uff0cnofile<\/code>\u662f\u6307\u6bcf\u500b\u9032\u7a0b\u53ef\u4ee5\u6253\u958b\u7684\u6700\u5927\u6587\u4ef6\u63cf\u8ff0\u7b26\u6578\u91cf\u3002\u9019\u500b\u6578\u91cf\u7684\u9650\u5236\u662f\u7531\u7cfb\u7d71\u8a2d\u7f6e\u7684\uff0c\u901a\u5e38\u5728\u7cfb\u7d71\u7684\u914d\u7f6e\u6587\u4ef6\u4e2d\u9032\u884c\u5b9a\u7fa9\u3002\u7576\u4e00\u500b\u9032\u7a0b\u8a66\u5716\u6253\u958b\u8d85\u904e\u9019\u500b\u9650\u5236\u7684\u6587\u4ef6\u6642\uff0c\u5c07\u6703\u6536\u5230\u4e00\u500b\u932f\u8aa4\uff0c\u901a\u5e38\u662f\u201cToo many open files\u201d\uff08\u6253\u958b\u7684\u6587\u4ef6\u904e\u591a\uff09\u3002<\/p>\n

\u5982\u4f55\u67e5\u770b\u7576\u524d\u7684nofile\u9650\u5236<\/h2>\n

\u8981\u67e5\u770b\u7576\u524d\u9032\u7a0b\u7684\u9650\u5236\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n

ulimit -n<\/code><\/pre>\n
\u9019\u500b\u547d\u4ee4\u5c07\u986f\u793a\u7576\u524d\u7528\u6236\u7684\u6700\u5927\u6587\u4ef6\u63cf\u8ff0\u7b26\u6578\u91cf\u3002\u5982\u679c\u9700\u8981\u67e5\u770b\u7cfb\u7d71\u7684\u5168\u5c40\u8a2d\u7f6e\uff0c\u53ef\u4ee5\u67e5\u95b1\u4ee5\u4e0b\u6587\u4ef6\uff1a<\/p>\n
\/etc\/security\/limits.conf<\/code><\/pre>\n
\u5728\u9019\u500b\u6587\u4ef6\u4e2d\uff0c\u53ef\u4ee5\u70ba\u4e0d\u540c\u7684\u7528\u6236\u6216\u7528\u6236\u7d44\u8a2d\u7f6e\u4e0d\u540c\u7684\u9650\u5236\u3002<\/p>\n
\u5982\u4f55\u4fee\u6539nofile\u9650\u5236<\/h2>\n
\u8981\u4fee\u6539\u9650\u5236\uff0c\u53ef\u4ee5\u901a\u904e\u4ee5\u4e0b\u5e7e\u7a2e\u65b9\u5f0f\u9032\u884c\uff1a<\/p>\n
1. \u4f7f\u7528ulimit\u547d\u4ee4<\/h3>\n
\u5728\u7d42\u7aef\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528ulimit<\/code>\u547d\u4ee4\u4f86\u81e8\u6642\u4fee\u6539\u7576\u524d\u6703\u8a71\u7684\u9650\u5236\u3002\u4f8b\u5982\uff1a<\/p>\n
ulimit -n 4096<\/code><\/pre>\n
\u9019\u5c07\u628a\u7576\u524d\u6703\u8a71\u7684\u6700\u5927\u6587\u4ef6\u63cf\u8ff0\u7b26\u6578\u91cf\u8a2d\u7f6e\u70ba4096\u3002\u8acb\u6ce8\u610f\uff0c\u9019\u500b\u8a2d\u7f6e\u5728\u6703\u8a71\u7d50\u675f\u5f8c\u5c07\u6703\u5931\u6548\u3002<\/p>\n
2. \u4fee\u6539limits.conf\u6587\u4ef6<\/h3>\n
\u8981\u6c38\u4e45\u4fee\u6539\u9650\u5236\uff0c\u53ef\u4ee5\u7de8\u8f2f\/etc\/security\/limits.conf<\/code>\u6587\u4ef6\uff0c\u6dfb\u52a0\u4ee5\u4e0b\u884c\uff1a<\/p>\n
username soft nofile 4096\nusername hard nofile 8192<\/code><\/pre>\n
\u5728\u9019\u88e1\uff0cusername<\/code>\u662f\u9700\u8981\u4fee\u6539\u7684\u7528\u6236\u540d\u3002\u9019\u6a23\u8a2d\u7f6e\u5f8c\uff0c\u8a72\u7528\u6236\u5728\u767b\u9304\u6642\u5c07\u6703\u81ea\u52d5\u7372\u5f97\u65b0\u7684\u9650\u5236\u3002<\/p>\n
3. \u4fee\u6539\u7cfb\u7d71\u7bc4\u570d\u7684\u8a2d\u7f6e<\/h3>\n
\u9664\u4e86\u7528\u6236\u7d1a\u5225\u7684\u8a2d\u7f6e\u5916\uff0c\u9084\u53ef\u4ee5\u901a\u904e\u7de8\u8f2f\/etc\/sysctl.conf<\/code>\u6587\u4ef6\u4f86\u4fee\u6539\u7cfb\u7d71\u7bc4\u570d\u7684\u9650\u5236\uff1a<\/p>\n
fs.file-max = 100000<\/code><\/pre>\n
\u9019\u5c07\u8a2d\u7f6e\u7cfb\u7d71\u53ef\u4ee5\u6253\u958b\u7684\u6700\u5927\u6587\u4ef6\u63cf\u8ff0\u7b26\u6578\u91cf\u3002\u4fee\u6539\u5f8c\uff0c\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u4f7f\u66f4\u6539\u751f\u6548\uff1a<\/p>\n
sysctl -p<\/code><\/pre>\n
\u6aa2\u67e5\u548c\u76e3\u63a7\u6587\u4ef6\u63cf\u8ff0\u7b26\u4f7f\u7528\u60c5\u6cc1<\/h2>\n
\u70ba\u4e86\u78ba\u4fdd\u7cfb\u7d71\u904b\u884c\u6b63\u5e38\uff0c\u76e3\u63a7\u6587\u4ef6\u63cf\u8ff0\u7b26\u7684\u4f7f\u7528\u60c5\u6cc1\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u4f86\u6aa2\u67e5\u7576\u524d\u7cfb\u7d71\u4e2d\u6253\u958b\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\u6578\u91cf\uff1a<\/p>\n
lsof | wc -l<\/code><\/pre>\n
\u9019\u5c07\u986f\u793a\u7576\u524d\u7cfb\u7d71\u4e2d\u6253\u958b\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\u7e3d\u6578\u3002\u901a\u904e\u5b9a\u671f\u6aa2\u67e5\u9019\u4e9b\u6578\u64da\uff0c\u53ef\u4ee5\u53ca\u6642\u767c\u73fe\u6f5b\u5728\u7684\u554f\u984c\u3002<\/p>\n
\u7e3d\u7d50<\/h2>\n
\u5728Linux\u7cfb\u7d71\u4e2d\uff0c\u5408\u7406\u7ba1\u7406\u6587\u4ef6\u63cf\u8ff0\u7b26\u7684\u6578\u91cf\u5c0d\u65bc\u7cfb\u7d71\u7684\u7a69\u5b9a\u6027\u548c\u6027\u80fd\u81f3\u95dc\u91cd\u8981\u3002\u901a\u904e\u4f7f\u7528\u5b8f\uff0c\u7cfb\u7d71\u7ba1\u7406\u54e1\u53ef\u4ee5\u9748\u6d3b\u5730\u8abf\u6574\u6bcf\u500b\u9032\u7a0b\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\u9650\u5236\uff0c\u4ee5\u9069\u61c9\u4e0d\u540c\u7684\u61c9\u7528\u9700\u6c42\u3002\u7121\u8ad6\u662f\u901a\u904eulimit<\/code>\u547d\u4ee4\u3001\u7de8\u8f2flimits.conf<\/code>\u6587\u4ef6\uff0c\u9084\u662f\u4fee\u6539\u7cfb\u7d71\u7bc4\u570d\u7684\u8a2d\u7f6e\uff0c\u4e86\u89e3\u5982\u4f55\u6709\u6548\u7ba1\u7406\u9019\u4e9b\u8cc7\u6e90\u5c07\u6709\u52a9\u65bc\u63d0\u5347\u7cfb\u7d71\u7684\u6574\u9ad4\u6027\u80fd\u3002\u5982\u679c\u60a8\u9700\u8981\u9ad8\u6548\u7684VPS<\/a>\u89e3\u6c7a\u65b9\u6848\uff0cServer.HK\u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u60a8\u7684\u9700\u6c42\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u4e86\u89e3Linux\u4e0b\u5b8fnofile\u7684\u4f7f\u7528\uff0c\u5b78\u7fd2\u5982\u4f55\u6709\u6548\u7ba1\u7406\u7cfb\u7d71\u6587\u4ef6\u63cf\u8ff0\u7b26\u6578\u91cf\uff0c\u63d0\u5347\u7cfb\u7d71\u6027\u80fd\u8207\u7a69\u5b9a\u6027\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4924],"tags":[],"class_list":["post-198466","post","type-post","status-publish","format-standard","hentry","category-setup-tutorials"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/198466","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"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=198466"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/198466\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=198466"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=198466"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=198466"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}