{"id":1551,"date":"2018-11-22T19:55:39","date_gmt":"2018-11-22T11:55:39","guid":{"rendered":"http:\/\/ykyi.net\/?p=1551"},"modified":"2018-11-22T19:55:39","modified_gmt":"2018-11-22T11:55:39","slug":"linux%e7%b3%bb%e7%bb%9f%e7%ba%a7-%e8%bf%9b%e7%a8%8b%e7%ba%a7%e6%9c%80%e5%a4%9a%e6%89%93%e5%bc%80%e6%96%87%e4%bb%b6%e6%95%b0fd%e6%96%87%e4%bb%b6%e6%8f%8f%e8%bf%b0%e7%ac%a6%e6%95%b0","status":"publish","type":"post","link":"https:\/\/ykyi.net\/?p=1551","title":{"rendered":"Linux\u7cfb\u7edf\u7ea7\/\u8fdb\u7a0b\u7ea7\u6700\u591a\u6253\u5f00\u6587\u4ef6\u6570,FD\u6587\u4ef6\u63cf\u8ff0\u7b26\u6570"},"content":{"rendered":"

\u5982\u4f55\u589e\u52a0Linux\u7cfb\u7edf\u6700\u5927\u6587\u4ef6\u6253\u5f00\u6570\u76ee\u5462\uff1f<\/p>\n

\u67e5\u770b\u7cfb\u7edf\u6700\u5927\u53ef\u6253\u5f00\u6587\u4ef6\u6570<\/h3>\n

\u4ee5\u4e0b\u547d\u4ee4\u67e5\u770b\u64cd\u4f5c\u7cfb\u7edf\u7ea7\u6700\u591a\u53ef\u6253\u5f00\u6587\u4ef6\u6570,fd\u6570\u76ee<\/p>\n

$ cat \/proc\/sys\/fs\/file-max\n<\/code><\/pre>\n
\u6211\u7528ubuntu 16\u8f93\u51fa:<\/p>\n
573738\n<\/code><\/pre>\n
\u600e\u4e48\u8c03\u6574\u7cfb\u7edf\u6700\u5927\u53ef\u6253\u5f00\u6587\u4ef6\u6570<\/h3>\n
# sysctl -w fs.file-max=1000000\n<\/code><\/pre>\n
\u9700\u8981\u7528root\u7528\u6237\u6267\u884c\u4ee5\u4e0a\u547d\u4ee4\uff0c\u8bbe\u6700\u5927\u4e3a\u4e00\u767e\u4e07\u3002
\n\u4f46\u5728\u547d\u4ee4\u884c\u4e0a\u4fee\u6539\u4e86\u8fd9\u4e2a\u914d\u7f6e\uff0c\u4f1a\u5728\u4e0b\u4e00\u6b21\u64cd\u4f5c\u7cfb\u7edf\u91cd\u542f\u540e\u91cd\u7f6e\u4e3a\u4ee5\u524d\u7684\u503c\u3002\u8981\u4e00\u52b3\u6c38\u9038\u7684\u6539\u53d8\u7cfb\u7edf\u6700\u5927\u6253\u5f00\u6587\u4ef6\u6570\uff0c\u9700\u8981\u4fee\u6539 \/etc\/sysctl.conf \u6587\u4ef6\u3002<\/p>\n
fs.file-max = 1000000\n<\/code><\/pre>\n
\u5728\/etc\/sysctl.conf\u6587\u4ef6\u4e2d\u589e\u52a0\u4e0a\u8ff0\u4e00\u884c\u3002<\/p>\n
ulimit\u547d\u4ee4\u67e5\u770b\/\u8c03\u6574\u8fdb\u7a0b\u7ea7\u6700\u5927\u6587\u4ef6\u6253\u5f00\u6570<\/h3>\n
$ ulimit -Sn\n1024\n<\/code><\/pre>\n
\u8fd9\u4e2a\u547d\u4ee4\u67e5\u770b\u4e00\u4e2aulimit\u7684\u8f6f\u6781\u9650\u503c(soft limit)\uff0c\u672c\u7528\u6237\u8d77\u7684\u8fdb\u7a0b\u7684\u6700\u5927\u6587\u4ef6\u6253\u5f00\u6570\u7684\u9650\u5236\u3002\u6211\u7684ubuntu 16\u663e\u793a\u8fdb\u7a0b\u6700\u591a\u5f001024\u4e2afd\u3002\u5982\u679c\u8981\u63d0\u9ad8\u6bcf\u4e2a\u8fdb\u7a0b\u53ef\u540c\u65f6\u6253\u5f00\u7684\u6587\u4ef6\u6570\uff0c\u9700\u8981\u66f4\u6539\u8fd9\u4e2a\u503c\u3002<\/p>\n
$ ulimit -Sn 2048\nbash: ulimit: open files: cannot modify limit: Invalid argument\n<\/code><\/pre>\n
\u4f46\u6211\u60f3\u628a\u6bcf\u4e2a\u8fdb\u7a0b\u53ef\u540c\u65f6\u6253\u5f00\u7684\u6587\u4ef6\u6570\u589e\u52a0\u5230\u4ee5\u524d\u7684\u4e24\u500d\u65f6\uff0c\u62a5\u9519\u4e86\u3002\u8fd9\u662f\u56e0\u4e3a\uff0c\u8f6f\u6781\u9650\u503c(soft limit)\u4e0d\u80fd\u591f\u8d8a\u8fc7(Hard Limit)\u3002\u6211\u770b\u4e86\u4e00\u4e0bHard limit\uff0c\u4e5f\u662f1024<\/p>\n
$ ulimit -Hn\n1024\n<\/code><\/pre>\n
\u90a3\u6ca1\u529e\u6cd5\u7f57\uff0c\u9700\u8981\u4ee5root\u7528\u6237\u767b\u5f55\u66f4\u6539Hard Limit\u3002<\/p>\n
\u600e\u4e48\u4fee\u6539\u666e\u901a\u7528\u6237\u7684\u786c\u6781\u9650hard Limit<\/h3>\n
\u7528root\u8d26\u6237\u767b\u5f55\u540e\uff0c\u7f16\u8f91 \/etc\/security\/limits.conf\u6587\u4ef6\uff0c\u5047\u5982\u666e\u901a\u7528\u6237\u540d\u662fkamuszhou\u3002<\/p>\n
kamuszhou hard nofile 10000\nkamuszhou soft nofile 5000\n<\/code><\/pre>\n
\u4ee5\u4e0a\u914d\u7f6e\u4fee\u6539kamuszhou\u666e\u901a\u7528\u6237\u7684\u6700\u591a\u6253\u5f00\u6587\u4ef6\u6570\u7684hard limit\u4e3a10000\uff0csoft limit\u4e3a5000\u3002
\n\u5bf9\u4e8eubuntu 16\uff0c\u5982\u679c\u4f7f\u7528\u56fe\u5f62\u684c\u9762\uff0c\u8fd8\u9700\u8981\u4fee\u6539 \/etc\/systemd\/system.conf \u548c \/etc\/systemd\/user.conf\u3002
\n\u52a0\u4e0a\u8fd9\u4e48\u4e00\u884c\uff1a<\/p>\n
DefaultLimitNOFILE=10000\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"
\u5982\u4f55\u589e\u52a0Linux\u7cfb\u7edf\u6700\u5927\u6587\u4ef6\u6253\u5f00\u6570\u76ee\u5462\uff1f \u67e5\u770b\u7cfb\u7edf\u6700\u5927\u53ef\u6253\u5f00\u6587\u4ef6\u6570 \u4ee5\u4e0b\u547d\u4ee4\u67e5\u770b\u64cd\u4f5c\u7cfb\u7edf\u7ea7\u6700\u591a\u53ef\u6253\u5f00\u6587\u4ef6\u6570,fd\u6570\u76ee $ cat \/proc\/sys\/fs\/file-max \u6211\u7528ubuntu 16\u8f93\u51fa: 573738 \u600e\u4e48\u8c03\u6574\u7cfb\u7edf\u6700\u5927\u53ef\u6253\u5f00\u6587\u4ef6\u6570 # sysctl -w fs.file-max=1000000 \u9700\u8981\u7528root\u7528\u6237\u6267\u884c\u4ee5\u4e0a\u547d\u4ee4\uff0c\u8bbe\u6700\u5927\u4e3a\u4e00\u767e\u4e07\u3002 \u4f46\u5728\u547d\u4ee4\u884c\u4e0a\u4fee\u6539\u4e86\u8fd9\u4e2a\u914d\u7f6e\uff0c\u4f1a\u5728\u4e0b\u4e00\u6b21\u64cd\u4f5c\u7cfb\u7edf\u91cd\u542f\u540e\u91cd\u7f6e\u4e3a\u4ee5\u524d\u7684\u503c\u3002\u8981\u4e00\u52b3\u6c38\u9038\u7684\u6539\u53d8\u7cfb\u7edf\u6700\u5927\u6253\u5f00\u6587\u4ef6\u6570\uff0c\u9700\u8981\u4fee\u6539 \/etc\/sysctl.conf \u6587\u4ef6\u3002 fs.file-max = 1000000 \u5728\/etc\/sysctl.conf\u6587\u4ef6\u4e2d\u589e\u52a0\u4e0a\u8ff0\u4e00\u884c\u3002 ulimit\u547d\u4ee4\u67e5\u770b\/\u8c03\u6574\u8fdb\u7a0b\u7ea7\u6700\u5927\u6587\u4ef6\u6253\u5f00\u6570 $ ulimit -Sn 1024 \u8fd9\u4e2a\u547d\u4ee4\u67e5\u770b\u4e00\u4e2aulimit\u7684\u8f6f\u6781\u9650\u503c(soft limit)\uff0c\u672c\u7528\u6237\u8d77\u7684\u8fdb\u7a0b\u7684\u6700\u5927\u6587\u4ef6\u6253\u5f00\u6570\u7684\u9650\u5236\u3002\u6211\u7684ubuntu 16\u663e\u793a\u8fdb\u7a0b\u6700\u591a\u5f001024\u4e2afd\u3002\u5982\u679c\u8981\u63d0\u9ad8\u6bcf\u4e2a\u8fdb\u7a0b\u53ef\u540c\u65f6\u6253\u5f00\u7684\u6587\u4ef6\u6570\uff0c\u9700\u8981\u66f4\u6539\u8fd9\u4e2a\u503c\u3002 $ ulimit -Sn 2048 bash: ulimit: open files: cannot modify limit: Invalid argument \u4f46\u6211\u60f3\u628a\u6bcf\u4e2a\u8fdb\u7a0b\u53ef\u540c\u65f6\u6253\u5f00\u7684\u6587\u4ef6\u6570\u589e\u52a0\u5230\u4ee5\u524d\u7684\u4e24\u500d\u65f6\uff0c\u62a5\u9519\u4e86\u3002\u8fd9\u662f\u56e0\u4e3a\uff0c\u8f6f\u6781\u9650\u503c(soft limit)\u4e0d\u80fd\u591f\u8d8a\u8fc7(Hard Limit)\u3002\u6211\u770b\u4e86\u4e00\u4e0bHard limit\uff0c\u4e5f\u662f1024 $ ulimit -Hn 1024 \u90a3\u6ca1\u529e\u6cd5\u7f57\uff0c\u9700\u8981\u4ee5root\u7528\u6237\u767b\u5f55\u66f4\u6539Hard Limit\u3002 \u600e\u4e48\u4fee\u6539\u666e\u901a\u7528\u6237\u7684\u786c\u6781\u9650hard Limit … Continue reading “Linux\u7cfb\u7edf\u7ea7\/\u8fdb\u7a0b\u7ea7\u6700\u591a\u6253\u5f00\u6587\u4ef6\u6570,FD\u6587\u4ef6\u63cf\u8ff0\u7b26\u6570”<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[51],"class_list":["post-1551","post","type-post","status-publish","format-standard","hentry","category-network","tag-linux-2"],"_links":{"self":[{"href":"https:\/\/ykyi.net\/index.php?rest_route=\/wp\/v2\/posts\/1551","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ykyi.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ykyi.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ykyi.net\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ykyi.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1551"}],"version-history":[{"count":0,"href":"https:\/\/ykyi.net\/index.php?rest_route=\/wp\/v2\/posts\/1551\/revisions"}],"wp:attachment":[{"href":"https:\/\/ykyi.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1551"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ykyi.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1551"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ykyi.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1551"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}