\u8f6c\u81ea \u00a0\uff1a<\/p>\n
http:\/\/blog.csdn.net\/sully2008\/article\/details\/6457570<\/p>\n
<\/p>\n
\u6211\u7684\u670d\u52a1\u5668\u7684\u914d\u7f6e\uff1a<\/p>\n
# OS specific support. \u00a0$var _must_ be set to either true or false.<\/p>\n
\u5e38\u89c1\u7684\u5185\u5b58\u6ea2\u51fa\u6709\u4ee5\u4e0b\u4e24\u79cd:<\/p>\n
Java<\/a>.lang.OutOfMemoryError: PermGen space<\/strong><\/p>\n java.lang.OutOfMemoryError: Java <\/a>heap space<\/strong><\/p>\n <\/p>\n ———————————————————<\/p>\n \u8fd9\u91cc\u4ee5tomcat\u73af\u5883\u4e3a\u4f8b\uff0c\u5176\u5b83WEB\u670d\u52a1\u5668\u5982jboss,weblogic\u7b49\u662f\u540c\u4e00\u4e2a\u9053\u7406\u3002 PermGen space\u7684\u5168\u79f0\u662fPermanent Generation space,\u662f\u6307\u5185\u5b58\u7684\u6c38\u4e45\u4fdd\u5b58\u533a\u57df, <\/p>\n \u4e8c\u3001java.lang.OutOfMemoryError: Java heap space<\/strong> ———————————————————-<\/p>\n <\/p>\n Linux<\/a>\u4e0b\u4fee\u6539JVM\u5185\u5b58\u5927\u5c0f:<\/p>\n \u8981\u6dfb\u52a0\u5728tomcat<\/span> \u7684bin \u4e0bcatalina.sh \u91cc\uff0c\u4f4d\u7f6ecygwin=false\u524d \u3002\u6ce8\u610f\u5f15\u53f7\u8981\u5e26\u4e0a,\u7ea2\u8272\u7684\u4e3a\u65b0\u6dfb\u52a0\u7684.<\/p>\n # OS specific support. $var _must_ be set to either true or false. <\/p>\n windows\u4e0b\u4fee\u6539JVM\u5185\u5b58\u5927\u5c0f:<\/p>\n \u60c5\u51b5\u4e00:\u89e3\u538b\u7248\u672c\u7684Tomcat, \u8981\u901a\u8fc7startup.bat\u542f\u52a8tomcat\u624d\u80fd\u52a0\u8f7d\u914d\u7f6e<\/p>\n \u8981\u6dfb\u52a0\u5728tomcat<\/span> \u7684bin \u4e0bcatalina.bat \u91cc<\/p>\n rem Guess CATALINA_HOME if not defined set JAVA_OPTS=-Xms256m -Xmx512m -XX:PermSize=128M -XX:MaxNewSize=256m -XX:MaxPermSize=256m -Djava.awt.headless=true<\/p>\n <\/p>\n \u60c5\u51b5\u4e8c:\u5b89\u88c5\u7248\u7684Tomcat<\/span>\u4e0b\u6ca1\u6709catalina.bat<\/p>\n windows\u670d\u52a1\u6267\u884c\u7684\u662fbin\/tomcat<\/span>.exe.\u4ed6\u8bfb\u53d6\u6ce8\u518c\u8868\u4e2d\u7684\u503c,\u800c\u4e0d\u662fcatalina.bat\u7684\u8bbe\u7f6e.<\/p>\n \u4fee\u6539\u6ce8\u518c\u8868HKEY_LOCAL_MACHINE\/SOFTWARE\/Apache Software Foundation\/Tomcat<\/span> Service Manager\/Tomcat5\/Parameters\/JavaOptions <\/p>\n ———————————————————<\/p>\n \u5404\u53c2\u6570\u7684\u6bd4\u4f8b:<\/strong><\/p>\n Xmx \u4e0ePermSize\u7684\u548c\u4e0d\u53ef\u8d85\u8fc7JVM\u53ef\u83b7\u5f97\u7684\u603b\u5185\u5b58<\/p>\n PermSize\u4e0d\u53ef\u5927\u4e8eXmx<\/p>\n ================<\/p>\n \u5982\u4f55\u8bbe\u7f6eTomcat\u7684JVM\u865a\u62df\u673a\u5185\u5b58\u5927\u5c0f<\/strong><\/p>\n \u53ef\u4ee5\u7ed9Java\u865a\u62df\u673a\u8bbe\u7f6e\u4f7f\u7528\u7684\u5185\u5b58\uff0c\u4f46\u662f\u5982\u679c\u4f60\u7684\u9009\u62e9\u4e0d\u5bf9\u7684\u8bdd\uff0c\u865a\u62df\u673a\u4e0d\u4f1a\u8865\u507f\u3002\u53ef\u901a\u8fc7\u547d\u4ee4\u884c\u7684\u65b9\u5f0f\u6539\u53d8\u865a\u62df\u673a\u4f7f\u7528\u5185\u5b58\u7684\u5927\u5c0f\u3002\u5982\u4e0b\u8868\u6240\u793a\u6709\u4e24\u4e2a\u53c2\u6570\u7528\u6765\u8bbe\u7f6e\u865a\u62df\u673a\u4f7f\u7528\u5185\u5b58\u7684\u5927\u5c0f\u3002 <\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":" \u8f6c\u81ea \u00a0\uff1a http:\/\/blog.csdn.net\/sully2008\/article\/details\/6457570 \u6211\u7684\u670d\u52a1\u5668\u7684\u914d\u7f6e\uff1a # OS specific support. \u00a0$var _must_ be set to either true or false. JAVA_OPTS=”-Xms1024m -Xmx4096m […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[1],"tags":[],"class_list":["post-51","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/blog.jsjs.org\/index.php?rest_route=\/wp\/v2\/posts\/51","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.jsjs.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.jsjs.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.jsjs.org\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.jsjs.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=51"}],"version-history":[{"count":0,"href":"https:\/\/blog.jsjs.org\/index.php?rest_route=\/wp\/v2\/posts\/51\/revisions"}],"wp:attachment":[{"href":"https:\/\/blog.jsjs.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=51"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.jsjs.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=51"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.jsjs.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=51"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\n\u4e00\u3001java.lang.OutOfMemoryError: PermGen space<\/strong><\/p>\n
\n\u8fd9\u5757\u5185\u5b58\u4e3b\u8981\u662f\u88abJVM\u5b58\u653eClass\u548cMeta\u4fe1\u606f\u7684,Class\u5728\u88abLoader\u65f6\u5c31\u4f1a\u88ab\u653e\u5230PermGen space\u4e2d,
\n\u5b83\u548c\u5b58\u653e\u7c7b\u5b9e\u4f8b(Instance)\u7684Heap\u533a\u57df\u4e0d\u540c,GC(Garbage Collection)\u4e0d\u4f1a\u5728\u4e3b\u7a0b\u5e8f\u8fd0\u884c\u671f\u5bf9
\nPermGen space\u8fdb\u884c\u6e05\u7406\uff0c\u6240\u4ee5\u5982\u679c\u4f60\u7684\u5e94\u7528\u4e2d\u6709\u5f88\u591aCLASS\u7684\u8bdd,\u5c31\u5f88\u53ef\u80fd\u51fa\u73b0PermGen space\u9519\u8bef,
\n\u8fd9\u79cd\u9519\u8bef\u5e38\u89c1\u5728web\u670d\u52a1\u5668\u5bf9JSP\u8fdb\u884cpre compile\u7684\u65f6\u5019\u3002\u5982\u679c\u4f60\u7684WEB APP\u4e0b\u90fd\u7528\u4e86\u5927\u91cf\u7684\u7b2c\u4e09\u65b9jar, \u5176\u5927\u5c0f
\n\u8d85\u8fc7\u4e86jvm\u9ed8\u8ba4\u7684\u5927\u5c0f(4M)\u90a3\u4e48\u5c31\u4f1a\u4ea7\u751f\u6b64\u9519\u8bef\u4fe1\u606f\u4e86\u3002
\n\u89e3\u51b3\u65b9\u6cd5\uff1a \u624b\u52a8\u8bbe\u7f6eMaxPermSize\u5927\u5c0f
\n\u5efa\u8bae\uff1a\u5c06\u76f8\u540c\u7684\u7b2c\u4e09\u65b9jar\u6587\u4ef6\u79fb\u7f6e\u5230tomcat\/shared\/lib\u76ee\u5f55\u4e0b\uff0c\u8fd9\u6837\u53ef\u4ee5\u8fbe\u5230\u51cf\u5c11jar \u6587\u6863\u91cd\u590d\u5360\u7528\u5185\u5b58\u7684\u76ee\u7684\u3002<\/p>\n
\nJVM\u5806\u7684\u8bbe\u7f6e\u662f\u6307java\u7a0b\u5e8f\u8fd0\u884c\u8fc7\u7a0b\u4e2dJVM\u53ef\u4ee5\u8c03\u914d\u4f7f\u7528\u7684\u5185\u5b58\u7a7a\u95f4\u7684\u8bbe\u7f6e.JVM\u5728\u542f\u52a8\u7684\u65f6\u5019\u4f1a\u81ea\u52a8\u8bbe\u7f6eHeap size\u7684\u503c\uff0c
\n\u5176\u521d\u59cb\u7a7a\u95f4(\u5373-Xms)\u662f\u7269\u7406\u5185\u5b58\u76841\/64<\/strong>\uff0c\u6700\u5927\u7a7a\u95f4(-Xmx)\u662f\u7269\u7406\u5185\u5b58\u76841\/4<\/strong>\u3002\u53ef\u4ee5\u5229\u7528JVM\u63d0\u4f9b\u7684-Xmn -Xms -Xmx\u7b49\u9009\u9879\u53ef
\n\u8fdb\u884c\u8bbe\u7f6e\u3002Heap size \u7684\u5927\u5c0f\u662fYoung Generation \u548cTenured Generaion \u4e4b\u548c\u3002
\n\u63d0\u793a\uff1a\u5728JVM\u4e2d\u5982\u679c98\uff05\u7684\u65f6\u95f4\u662f\u7528\u4e8eGC\u4e14\u53ef\u7528\u7684Heap size \u4e0d\u8db32\uff05\u7684\u65f6\u5019\u5c06\u629b\u51fa\u6b64\u5f02\u5e38\u4fe1\u606f\u3002
\n\u63d0\u793a\uff1aHeap Size \u6700\u5927\u4e0d\u8981\u8d85\u8fc7\u53ef\u7528\u7269\u7406\u5185\u5b58\u768480\uff05\uff0c\u4e00\u822c\u7684\u8981\u5c06-Xms\u548c-Xmx\u9009\u9879\u8bbe\u7f6e\u4e3a\u76f8\u540c\uff0c\u800c-Xmn\u4e3a1\/4\u7684-Xmx\u503c\u3002
\n\u89e3\u51b3\u65b9\u6cd5\uff1a\u624b\u52a8\u8bbe\u7f6eHeap size<\/p>\n
\nJAVA_OPTS=”-Xms256m -Xmx512m -Xss1024K -XX:PermSize=128m -XX:MaxPermSize=256m”
\ncygwin=false<\/p>\n
\nset CURRENT_DIR=%cd%\u540e\u9762\u6dfb\u52a0,\u7ea2\u8272\u7684\u4e3a\u65b0\u6dfb\u52a0\u7684.<\/p>\n
\n\u539f\u503c\u4e3a
\n-Dcatalina.home=”C:\/ApacheGroup\/Tomcat<\/span> 5.0″
\n-Djava.endorsed.dirs=”C:\/ApacheGroup\/Tomcat<\/span> 5.0\/common\/endorsed”
\n-Xrs<\/p>\n
\n\u91cd\u8d77tomcat<\/span>\u670d\u52a1,\u8bbe\u7f6e\u751f\u6548<\/div>\n
\n\u53c2\u6570
\n\u63cf\u8ff0
\n-Xms
\nJVM\u521d\u59cb\u5316\u5806\u7684\u5927\u5c0f
\n-Xmx
\nJVM\u5806\u7684\u6700\u5927\u503c
\n\u8fd9 \u4e24\u4e2a\u503c\u7684\u5927\u5c0f\u4e00\u822c\u6839\u636e\u9700\u8981\u8fdb\u884c\u8bbe\u7f6e\u3002\u521d\u59cb\u5316\u5806\u7684\u5927\u5c0f\u6267\u884c\u4e86\u865a\u62df\u673a\u5728\u542f\u52a8\u65f6\u5411\u7cfb\u7edf\u7533\u8bf7\u7684\u5185\u5b58\u7684\u5927\u5c0f\u3002\u4e00\u822c\u800c\u8a00\uff0c\u8fd9\u4e2a\u53c2\u6570\u4e0d\u91cd\u8981\u3002\u4f46\u662f\u6709\u7684\u5e94\u7528\u7a0b\u5e8f\u5728\u5927\u8d1f\u8f7d\u7684 \u60c5\u51b5\u4e0b\u4f1a\u6025\u5267\u5730\u5360\u7528\u66f4\u591a\u7684\u5185\u5b58\uff0c\u6b64\u65f6\u8fd9\u4e2a\u53c2\u6570\u5c31\u662f\u663e\u5f97\u975e\u5e38\u91cd\u8981\uff0c\u5982\u679c\u865a\u62df\u673a\u542f\u52a8\u65f6\u8bbe\u7f6e\u4f7f\u7528\u7684\u5185\u5b58\u6bd4\u8f83\u5c0f\u800c\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\u6709\u8bb8\u591a\u5bf9\u8c61\u8fdb\u884c\u521d\u59cb\u5316\uff0c\u865a\u62df\u673a\u5c31\u5fc5\u987b \u91cd\u590d\u5730\u589e\u52a0\u5185\u5b58\u6765\u6ee1\u8db3\u4f7f\u7528\u3002\u7531\u4e8e\u8fd9\u79cd\u539f\u56e0\uff0c\u6211\u4eec\u4e00\u822c\u628a-Xms\u548c-Xmx\u8bbe\u4e3a\u4e00\u6837\u5927\uff0c\u800c\u5806\u7684\u6700\u5927\u503c\u53d7\u9650\u4e8e\u7cfb\u7edf\u4f7f\u7528\u7684\u7269\u7406\u5185\u5b58\u3002\u4e00\u822c\u4f7f\u7528\u6570\u636e\u91cf\u8f83\u5927\u7684\u5e94\u7528\u7a0b \u5e8f\u4f1a\u4f7f\u7528\u6301\u4e45\u5bf9\u8c61\uff0c\u5185\u5b58\u4f7f\u7528\u6709\u53ef\u80fd\u8fc5\u901f\u5730\u589e\u957f\u3002\u5f53\u5e94\u7528\u7a0b\u5e8f\u9700\u8981\u7684\u5185\u5b58\u8d85\u51fa\u5806\u7684\u6700\u5927\u503c\u65f6\u865a\u62df\u673a\u5c31\u4f1a\u63d0\u793a\u5185\u5b58\u6ea2\u51fa\uff0c\u5e76\u4e14\u5bfc\u81f4\u5e94\u7528\u670d\u52a1\u5d29\u6e83\u3002\u56e0\u6b64\u4e00\u822c\u5efa\u8bae\u5806\u7684\u6700 \u5927\u503c\u8bbe\u7f6e\u4e3a\u53ef\u7528\u5185\u5b58\u7684\u6700\u5927\u503c\u768480%\u3002
\nTomcat\u9ed8\u8ba4\u53ef\u4ee5\u4f7f\u7528\u7684\u5185\u5b58\u4e3a128MB\uff0c\u5728\u8f83\u5927\u578b\u7684\u5e94\u7528\u9879\u76ee\u4e2d\uff0c\u8fd9\u70b9\u5185\u5b58\u662f\u4e0d\u591f\u7684\uff0c\u9700\u8981\u8c03\u5927\u3002
\nWindows\u4e0b\uff0c\u5728\u6587\u4ef6\/bin\/catalina.bat\uff0cUnix\u4e0b\uff0c\u5728\u6587\u4ef6\/bin\/catalina.sh\u7684\u524d\u9762\uff0c\u589e\u52a0\u5982\u4e0b\u8bbe\u7f6e\uff1a
\nJAVA_OPTS=’-Xms\u3010\u521d\u59cb\u5316\u5185\u5b58\u5927\u5c0f\u3011 -Xmx\u3010\u53ef\u4ee5\u4f7f\u7528\u7684\u6700\u5927\u5185\u5b58\u3011’
\n\u9700\u8981\u628a\u8fd9\u4e2a\u4e24\u4e2a\u53c2\u6570\u503c\u8c03\u5927\u3002\u4f8b\u5982\uff1a
\nJAVA_OPTS=’-Xms256m -Xmx512m’
\n\u8868\u793a\u521d\u59cb\u5316\u5185\u5b58\u4e3a256MB\uff0c\u53ef\u4ee5\u4f7f\u7528\u7684\u6700\u5927\u5185\u5b58\u4e3a512MB\u3002
\n\u53e6 \u5916\u9700\u8981\u8003\u8651\u7684\u662fJava\u63d0\u4f9b\u7684\u5783\u573e\u56de\u6536\u673a\u5236\u3002\u865a\u62df\u673a\u7684\u5806\u5927\u5c0f\u51b3\u5b9a\u4e86\u865a\u62df\u673a\u82b1\u8d39\u5728\u6536\u96c6\u5783\u573e\u4e0a\u7684\u65f6\u95f4\u548c\u9891\u5ea6\u3002\u6536\u96c6\u5783\u573e\u53ef\u4ee5\u63a5\u53d7\u7684\u901f\u5ea6\u4e0e\u5e94\u7528\u6709\u5173\uff0c\u5e94\u8be5\u901a\u8fc7\u5206\u6790 \u5b9e\u9645\u7684\u5783\u573e\u6536\u96c6\u7684\u65f6\u95f4\u548c\u9891\u7387\u6765\u8c03\u6574\u3002\u5982\u679c\u5806\u7684\u5927\u5c0f\u5f88\u5927\uff0c\u90a3\u4e48\u5b8c\u5168\u5783\u573e\u6536\u96c6\u5c31\u4f1a\u5f88\u6162\uff0c\u4f46\u662f\u9891\u5ea6\u4f1a\u964d\u4f4e\u3002\u5982\u679c\u4f60\u628a\u5806\u7684\u5927\u5c0f\u548c\u5185\u5b58\u7684\u9700\u8981\u4e00\u81f4\uff0c\u5b8c\u5168\u6536\u96c6\u5c31\u5f88\u5feb\uff0c \u4f46\u662f\u4f1a\u66f4\u52a0\u9891\u7e41\u3002\u8c03\u6574\u5806\u5927\u5c0f\u7684\u7684\u76ee\u7684\u662f\u6700\u5c0f\u5316\u5783\u573e\u6536\u96c6\u7684\u65f6\u95f4\uff0c\u4ee5\u5728\u7279\u5b9a\u7684\u65f6\u95f4\u5185\u6700\u5927\u5316\u5904\u7406\u5ba2\u6237\u7684\u8bf7\u6c42\u3002\u5728\u57fa\u51c6\u6d4b\u8bd5<\/a>\u7684\u65f6\u5019\uff0c\u4e3a\u4fdd\u8bc1\u6700\u597d\u7684\u6027\u80fd\uff0c\u8981\u628a\u5806\u7684\u5927\u5c0f \u8bbe\u5927\uff0c\u4fdd\u8bc1\u5783\u573e\u6536\u96c6\u4e0d\u5728\u6574\u4e2a\u57fa\u51c6\u6d4b\u8bd5\u7684\u8fc7\u7a0b\u4e2d\u51fa\u73b0\u3002
\n\u5982\u679c\u7cfb\u7edf\u82b1\u8d39\u5f88\u591a\u7684\u65f6\u95f4\u6536\u96c6\u5783\u573e\uff0c\u8bf7\u51cf\u5c0f\u5806\u5927\u5c0f\u3002\u4e00\u6b21\u5b8c\u5168\u7684\u5783\u573e\u6536\u96c6\u5e94\u8be5\u4e0d\u8d85\u8fc7 3-5 \u79d2\u3002\u5982\u679c\u5783\u573e\u6536\u96c6\u6210\u4e3a\u74f6\u9888\uff0c\u90a3\u4e48\u9700\u8981\u6307\u5b9a\u4ee3\u7684\u5927\u5c0f\uff0c\u68c0\u67e5\u5783\u573e\u6536\u96c6\u7684\u8be6\u7ec6\u8f93\u51fa\uff0c\u7814\u7a76 \u5783\u573e\u6536\u96c6\u53c2\u6570\u5bf9\u6027\u80fd\u7684\u5f71\u54cd\u3002\u4e00\u822c\u8bf4\u6765\uff0c\u4f60\u5e94\u8be5\u4f7f\u7528\u7269\u7406\u5185\u5b58\u7684 80% \u4f5c\u4e3a\u5806\u5927\u5c0f\u3002\u5f53\u589e\u52a0\u5904\u7406\u5668\u65f6\uff0c\u8bb0\u5f97\u589e\u52a0\u5185\u5b58\uff0c\u56e0\u4e3a\u5206\u914d\u53ef\u4ee5\u5e76\u884c\u8fdb\u884c\uff0c\u800c\u5783\u573e\u6536\u96c6\u4e0d\u662f\u5e76\u884c\u7684\u3002
\nTomcat 5\u5e38\u7528\u4f18\u5316\u548c\u914d\u7f6e
\n1\u3001JDK\u5185\u5b58\u4f18\u5316\uff1a
\nTomcat\u9ed8\u8ba4\u53ef\u4ee5\u4f7f\u7528\u7684\u5185\u5b58\u4e3a128MB,Windows\u4e0b,\u5728\u6587\u4ef6{tomcat_home}\/bin\/catalina.bat\uff0cUnix\u4e0b\uff0c\u5728\u6587\u4ef6{tomcat_home}\/bin\/catalina.sh\u7684\u524d\u9762\uff0c\u589e\u52a0\u5982\u4e0b\u8bbe\u7f6e\uff1a
\nJAVA_OPTS=’-Xms[\u521d\u59cb\u5316\u5185\u5b58\u5927\u5c0f] -Xmx[\u53ef\u4ee5\u4f7f\u7528\u7684\u6700\u5927\u5185\u5b58]
\n\u4e00\u822c\u8bf4\u6765\uff0c\u4f60\u5e94\u8be5\u4f7f\u7528\u7269\u7406\u5185\u5b58\u7684 80% \u4f5c\u4e3a\u5806\u5927\u5c0f\u3002
\n2\u3001\u8fde\u63a5\u5668\u4f18\u5316\uff1a
\n\u5728tomcat\u914d\u7f6e\u6587\u4ef6server.xml\u4e2d\u7684\u914d\u7f6e\u4e2d\uff0c\u548c\u8fde\u63a5\u6570\u76f8\u5173\u7684\u53c2\u6570\u6709\uff1a
\nmaxThreads\uff1a
\nTomcat\u4f7f\u7528\u7ebf\u7a0b\u6765\u5904\u7406\u63a5\u6536\u7684\u6bcf\u4e2a\u8bf7\u6c42\u3002\u8fd9\u4e2a\u503c\u8868\u793aTomcat\u53ef\u521b\u5efa\u7684\u6700\u5927\u7684\u7ebf\u7a0b\u6570\u3002\u9ed8\u8ba4\u503c150\u3002
\nacceptCount\uff1a
\n\u6307\u5b9a\u5f53\u6240\u6709\u53ef\u4ee5\u4f7f\u7528\u7684\u5904\u7406\u8bf7\u6c42\u7684\u7ebf\u7a0b\u6570\u90fd\u88ab\u4f7f\u7528\u65f6\uff0c\u53ef\u4ee5\u653e\u5230\u5904\u7406\u961f\u5217\u4e2d\u7684\u8bf7\u6c42\u6570\uff0c\u8d85\u8fc7\u8fd9\u4e2a\u6570\u7684\u8bf7\u6c42\u5c06\u4e0d\u4e88\u5904\u7406\u3002\u9ed8\u8ba4\u503c10\u3002
\nminSpareThreads\uff1a
\nTomcat\u521d\u59cb\u5316\u65f6\u521b\u5efa\u7684\u7ebf\u7a0b\u6570\u3002\u9ed8\u8ba4\u503c25\u3002
\nmaxSpareThreads\uff1a
\n\u4e00\u65e6\u521b\u5efa\u7684\u7ebf\u7a0b\u8d85\u8fc7\u8fd9\u4e2a\u503c\uff0cTomcat\u5c31\u4f1a\u5173\u95ed\u4e0d\u518d\u9700\u8981\u7684socket\u7ebf\u7a0b\u3002\u9ed8\u8ba4\u503c75\u3002
\nenableLookups\uff1a
\n\u662f\u5426\u53cd\u67e5\u57df\u540d\uff0c\u9ed8\u8ba4\u503c\u4e3atrue\u3002\u4e3a\u4e86\u63d0\u9ad8\u5904\u7406\u80fd\u529b\uff0c\u5e94\u8bbe\u7f6e\u4e3afalse
\nconnnectionTimeout\uff1a
\n\u7f51\u7edc\u8fde\u63a5\u8d85\u65f6\uff0c\u9ed8\u8ba4\u503c60000\uff0c\u5355\u4f4d\uff1a\u6beb\u79d2\u3002\u8bbe\u7f6e\u4e3a0\u8868\u793a\u6c38\u4e0d\u8d85\u65f6\uff0c\u8fd9\u6837\u8bbe\u7f6e\u6709\u9690\u60a3\u7684\u3002\u901a\u5e38\u53ef\u8bbe\u7f6e\u4e3a30000\u6beb\u79d2\u3002
\nmaxKeepAliveRequests\uff1a
\n\u4fdd\u6301\u8bf7\u6c42\u6570\u91cf\uff0c\u9ed8\u8ba4\u503c100\u3002
\nbufferSize\uff1a
\n\u8f93\u5165\u6d41\u7f13\u51b2\u5927\u5c0f\uff0c\u9ed8\u8ba4\u503c2048 bytes\u3002
\ncompression\uff1a
\n\u538b\u7f29\u4f20\u8f93\uff0c\u53d6\u503con\/off\/force\uff0c\u9ed8\u8ba4\u503coff\u3002
\n\u5176\u4e2d\u548c\u6700\u5927\u8fde\u63a5\u6570\u76f8\u5173\u7684\u53c2\u6570\u4e3amaxThreads\u548cacceptCount\u3002\u5982\u679c\u8981\u52a0\u5927\u5e76\u53d1\u8fde\u63a5\u6570\uff0c\u5e94\u540c\u65f6\u52a0\u5927\u8fd9\u4e24\u4e2a\u53c2\u6570\u3002web server\u5141\u8bb8\u7684\u6700\u5927\u8fde\u63a5\u6570\u8fd8\u53d7\u5236\u4e8e*\u4f5c\u7cfb\u7edf\u7684\u5185\u6838\u53c2\u6570\u8bbe\u7f6e\uff0c\u901a\u5e38Windows\u662f2000\u4e2a\u5de6\u53f3\uff0cLinux\u662f1000\u4e2a\u5de6\u53f3\u3002
\n3\u3001tomcat\u4e2d\u5982\u4f55\u7981\u6b62\u548c\u5141\u8bb8\u5217\u76ee\u5f55\u4e0b\u7684\u6587\u4ef6
\n\u5728{tomcat_home}\/conf\/web.xml\u4e2d\uff0c\u628alistings\u53c2\u6570\u8bbe\u7f6e\u6210false\u5373\u53ef\uff0c\u5982\u4e0b\uff1a
\n<servlet>
\n…
\n< init-param>
\n< param-name>listings<\/param-name>
\n< param-value>false<\/param-value>
\n< \/init-param>
\n…
\n< \/servlet>
\n4\u3001tomcat\u4e2d\u5982\u4f55\u7981\u6b62\u548c\u5141\u8bb8\u4e3b\u673a\u6216IP\u5730\u5740\u8bbf\u95ee
\n<Host name=”localhost” …>
\n…
\n< Valve className=”org.apache.catalina.valves.RemoteHostValve”
\nallow=”*.mycompany.com,www.yourcompany.com”\/>
\n< Valve className=”org.apache.catalina.valves.RemoteAddrValve”
\ndeny=”192.168.1.*”\/>
\n…
\n< \/Host>
\n\u670d\u52a1\u5668\u7684\u914d\u7f6e
\nJAVA_OPTS=’-server -Xms512m -Xmx768m -XX:NewSize=128m -XX:MaxNewSize=192m -XX:SurvivorRatio=8′<\/p>\n