{"id":394,"date":"2012-03-14T12:07:44","date_gmt":"2012-03-14T12:07:44","guid":{"rendered":""},"modified":"2013-02-07T12:10:28","modified_gmt":"2013-02-07T04:10:28","slug":"apache%e7%9a%84prefork-mpm%e5%8a%9f%e8%83%bd","status":"publish","type":"post","link":"https:\/\/ybzx.vip\/wp\/?p=394","title":{"rendered":"Apache\u7684PreFork MPM\u529f\u80fd"},"content":{"rendered":"<p>\u9996\u5148\u6211\u5011\u4f86\u770b\u6709\u95dc\u65bc MPM \u7684\u4e00\u4e9b\u8cc7\u6599: <br \/>http:\/\/dz.adj.idv.tw\/archiver\/tid-214.html<br \/>\u5728 MPM\u4e2d, prefork \u53ca worker \u662f\u5169\u7a2e\u4e0d\u540c\u7684 multi-processing module, \u5728 apache \u7ba1\u65b9\u7db2\u7ad9\u4e0a\u5206\u5225\u6709\u5c0d\u9019\u5169\u500b module \u6709\u6df1\u5165\u7684\u4ecb\u7d39:<br \/>http:\/\/httpd.apache.org\/docs\/2.0\/mod\/prefork.html<br \/>http:\/\/httpd.apache.org\/docs\/2.0\/mod\/worker.html<!--more--><br \/>\u9019\u4e8c\u8005\u53ea\u80fd\u64c7\u5176\u4e00\u4f86\u4f7f\u7528, \u4e00\u822c\u4f86\u8aaa, \u96d6\u7136 prefork \u6bd4\u8f03\u4f54\u7528\u8a18\u61b6\u9ad4, \u4f46\u76f8\u5bb9\u6027\u53ca\u7a69\u5b9a\u6027\u8f03\u4f73, \u4e5f\u662f\u5728 FreeBSD \u4e0b\u5b89\u88dd Apache \u7684\u9810\u8a2d MPM module.<\/p>\n<p>\u4e8b\u5be6\u4e0a, \u9810\u8a2d\u7684 prefork mpm \u53c3\u6578\u5982\u4e0b:<br \/><IfModule prefork.c><br \/>StartServers&nbsp;&nbsp;&nbsp;&nbsp; 5<br \/>MinSpareServers&nbsp;&nbsp; 5<br \/>MaxSpareServers&nbsp;&nbsp; 10<br \/>MaxClients&nbsp;&nbsp;&nbsp;&nbsp; 150<br \/>MaxRequestsPerChild 0<br \/><\/IfModule><\/p>\n<p>\u5176\u4e2d\u4e00\u9805\u91cd\u8981\u7684\u53c3\u6578 ServerLimit \u4e26\u672a\u8a2d\u7f6e, \u9810\u8a2d\u662f 256, \u4e5f\u5c31\u662f\u6700\u591a\u50c5\u4f7f\u7528\u4e86 256\u500b worker, \u6240\u4ee5\u900f\u904e \/server-status \u770b\u5230\u7684 . \u53ea\u6703\u6709 256 \u500b, \u800c\u9810\u8a2d\u7684 MaxClients \u4e5f\u53ea\u6709 150 \u500b, \u4ee3\u8868\u8457 256 \u500b worker \u6700\u591a\u540c\u6642\u50c5 150 \u4e0a\u7dda\u5de5\u4f5c. \u9019\u662f\u9810\u8a2d\u7684\u72c0\u6cc1.<\/p>\n<p>\u63a5\u4e0b\u4f86\u6211\u5011\u53ef\u4ee5\u5148\u4f86\u4e86\u89e3\u4e00\u4e0b prefork \u9019\u4e9b\u53c3\u6578\u7684\u610f\u7fa9, \u9019\u4e9b xxxServers \u96d6\u7136\u53eb Server, \u4f46\u5176\u5be6\u5c31\u662f \/server-status \u4e2d\u6240\u7a31\u7684 worker, \u6240\u4ee5 StartServers \u4ee3\u8868\u8d77\u59cb\u8981\u767c\u8d77\u7684 worker, \u800c MinSpareServers \u53ca MaxSpareServers \u5206\u5225\u4ee3\u8868\u81f3\u5c11\u53ca\u81f3\u591a\u500b spare (\u9810\u5099)\u7684 worker, MaxClients \u5247\u662f\u6307\u6700\u591a\u540c\u6642\u670d\u52d9\u7684 worker, \u6700\u5f8c\u7684 MaxRequestsPerChild \u6307\u7684\u662f\u9019\u4e9b worker (\u96d6\u7136\u53c3\u6578\u662f Child)\u5728\u670d\u52d9\u591a\u5c11\u500b Request \u5f8c\u5c31\u8981 reset (\u53ef\u4ee5\u9054\u5230\u6e1b\u5c11\u82e5\u7a0b\u5f0f\u4e0a\u6709 leak \u554f\u984c\u7684\u767c\u751f).<\/p>\n<p>\u6240\u4ee5\u5728 prefork \u7684 MPM \u8a2d\u8a08\u4e0b, \u82e5\u8981\u63d0\u9ad8\u540c\u6642\u670d\u52d9\u7684\u4e0a\u9650\u6642, \u53ef\u4ee5\u76f4\u63a5\u8abf\u6574 MaxClients \u5373\u53ef, \u4f46\u82e5\u662f\u8981\u8d85\u904e 256 \u500b\u6642, \u5c31\u8981\u8a2d\u5b9a ServerLimit, \u5c07\u5141\u8a31\u540c\u6642\u767c\u8d77\u7684 worker \u6578, \u63d0\u9ad8, \u800c MaxClients \u8a2d\u7f6e <= ServerLimit, \u4f8b\u5982\u4e0b\u9762\u662f\u4e00\u500b\u8a2d\u7f6e\u7684\u4f8b\u5b50:<br \/><IfModule prefork.c><br \/>ServerLimit 1024<br \/>StartServers&nbsp;&nbsp;&nbsp;&nbsp; 128<br \/>MinSpareServers&nbsp;&nbsp; 16<br \/>MaxSpareServers&nbsp;&nbsp; 64<br \/>MaxClients&nbsp;&nbsp;&nbsp;&nbsp; 1024<br \/>MaxRequestsPerChild 0<br \/><\/IfModule><\/p>\n<p>\u518d\u9032\u884c Apache \u7684\u505c\u6b62, \u555f\u52d5(\u6ce8\u610f, \u4e00\u5b9a\u662f\u8981\u505c\u6b62, \u555f\u52d5, \u82e5\u662f\u7528 restart apache\u4e0d\u6703\u91cd\u65b0 allocation servers), \u518d\u89c0\u5bdf \/server-status \u6642, \u5c31\u53ef\u4ee5\u767c\u73fe apache \u6e96\u5099\u597d 1024 \u500b\u7e3d worker slot, \u4e00\u958b\u59cb\u8d77\u52d5 128 \u500b worker, \u5982\u6b64\u4e00\u4f86\u4fbf\u80fd\u63d0\u9ad8 web server \u7684\u6548\u80fd\u53ca\u541e\u5410\u91cf\u4e86.<\/p>\n<p>2008\/05\/29 00:23<br \/>http:\/\/diary.tw\/tim\/506<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u9996\u5148\u6211\u5011\u4f86\u770b\u6709\u95dc\u65bc MPM \u7684\u4e00\u4e9b\u8cc7\u6599: http:\/\/dz.adj.idv.tw\/archiver\/tid- &hellip; <a href=\"https:\/\/ybzx.vip\/wp\/?p=394\" class=\"more-link\">\u7ee7\u7eed\u9605\u8bfb<span class=\"screen-reader-text\">Apache\u7684PreFork MPM\u529f\u80fd<\/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":[117],"tags":[93,103],"class_list":["post-394","post","type-post","status-publish","format-standard","hentry","category-network","tag-apache","tag-prefork"],"_links":{"self":[{"href":"https:\/\/ybzx.vip\/wp\/index.php?rest_route=\/wp\/v2\/posts\/394","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ybzx.vip\/wp\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ybzx.vip\/wp\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ybzx.vip\/wp\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ybzx.vip\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=394"}],"version-history":[{"count":0,"href":"https:\/\/ybzx.vip\/wp\/index.php?rest_route=\/wp\/v2\/posts\/394\/revisions"}],"wp:attachment":[{"href":"https:\/\/ybzx.vip\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=394"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ybzx.vip\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=394"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ybzx.vip\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=394"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}