{"id":474,"date":"2017-11-09T22:01:27","date_gmt":"2017-11-09T14:01:27","guid":{"rendered":"https:\/\/blog.jsjs.org\/?p=474"},"modified":"2017-11-09T22:01:27","modified_gmt":"2017-11-09T14:01:27","slug":"tomcat-8-%e5%ae%89%e8%a3%85%e5%92%8c%e9%85%8d%e7%bd%ae%e3%80%81%e4%bc%98%e5%8c%96","status":"publish","type":"post","link":"https:\/\/blog.jsjs.org\/?p=474","title":{"rendered":"Tomcat 8 \u5b89\u88c5\u548c\u914d\u7f6e\u3001\u4f18\u5316"},"content":{"rendered":"<div>\n<h2>Tomcat 8 \u5b89\u88c5<\/h2>\n<ul>\n<li>Tomcat 8 \u5b89\u88c5\n<ul>\n<li>\u5b98\u7f51\uff1a<a href=\"http:\/\/tomcat.apache.org\/\" target=\"_blank\" rel=\"noopener\">http:\/\/tomcat.apache.org\/<\/a><\/li>\n<li>Tomcat 8 \u5b98\u7f51\u4e0b\u8f7d\uff1a<a href=\"http:\/\/tomcat.apache.org\/download-80.cgi\" target=\"_blank\" rel=\"noopener\">http:\/\/tomcat.apache.org\/download-80.cgi<\/a><\/li>\n<li>\u6b64\u65f6\uff0820160509\uff09 Tomcat 8 \u6700\u65b0\u7248\u672c\u4e3a\uff1a<code>apache-tomcat-8.0.32.tar.gz<\/code><\/li>\n<li>\u6211\u4e2a\u4eba\u4e60\u60ef <code>\/opt<\/code> \u76ee\u5f55\u4e0b\u521b\u5efa\u4e00\u4e2a\u76ee\u5f55 <code>setups<\/code> \u7528\u6765\u5b58\u653e\u5404\u79cd\u8f6f\u4ef6\u5b89\u88c5\u5305\uff1b\u5728 <code>\/usr<\/code> \u76ee\u5f55\u4e0b\u521b\u5efa\u4e00\u4e2a <code>program<\/code> \u7528\u6765\u5b58\u653e\u5404\u79cd\u89e3\u538b\u540e\u7684\u8f6f\u4ef6\u5305\uff0c\u4e0b\u9762\u7684\u8bb2\u89e3\u4e5f\u90fd\u662f\u57fa\u4e8e\u6b64\u4e60\u60ef<\/li>\n<li>\u6211\u4e2a\u4eba\u5df2\u7ecf\u4f7f\u7528\u4e86\u7b2c\u4e09\u65b9\u6e90\uff1a<code>EPEL\u3001RepoForge<\/code>\uff0c\u5982\u679c\u4f60\u51fa\u73b0 <code>yum install XXXXX<\/code> \u5b89\u88c5\u4e0d\u6210\u529f\u7684\u8bdd\uff0c\u5f88\u6709\u53ef\u80fd\u5c31\u662f\u4f60\u6ca1\u6709\u76f8\u5173\u6e90\uff0c\u8bf7\u67e5\u770b\u6211\u5bf9\u6e90\u8bbe\u7f6e\u7684\u6587\u7ae0<\/li>\n<li>Tomcat 8 \u4e0b\u8f7d\uff1a<code>wget http:\/\/apache.fayea.com\/tomcat\/tomcat-8\/v8.0.32\/bin\/apache-tomcat-8.0.32.tar.gz<\/code><\/li>\n<li>\u538b\u7f29\u5305\u89e3\u538b\uff1a<code>tar -zxvf apache-tomcat-8.0.32.tar.gz<\/code><\/li>\n<li>\u79fb\u5230\u89e3\u538b\u51fa\u6765\u6587\u4ef6\u5939\u5230 \/usr \u4e0b\uff1a<code>mv apache-tomcat-8.0.32\/ \/usr\/program\/<\/code><\/li>\n<li>\u4e3a\u4e86\u65b9\u4fbf\uff0c\u4fee\u6539\u89e3\u538b\u76ee\u5f55\u7684\u540d\u5b57\uff1a<code>mv \/usr\/program\/apache-tomcat-8.0.32\/ \/usr\/program\/tomcat8\/<\/code><\/li>\n<\/ul>\n<\/li>\n<li>\u8bbe\u7f6e Iptables \u89c4\u5219\uff08\u8fd9\u4e00\u6b65\u662f\u5fc5\u987b\u8bbe\u7f6e\u7684\uff09\uff1a\n<ul>\n<li>\u4e00\u79cd\u65b9\u5f0f\uff1a\u5148\u5173\u95ed iptables\uff0c\u9632\u6b62\u51fa\u73b0\u62e6\u622a\u95ee\u9898\u800c\u6d4b\u8bd5\u4e0d\u4e86\uff1a<code>service iptables stop<\/code><\/li>\n<li>\u4e00\u79cd\u65b9\u5f0f\uff1a\u5728 iptables \u4e2d\u6dfb\u52a0\u5141\u8bb8\u89c4\u5219\uff08Tomcat \u9ed8\u8ba4\u7aef\u53e3\u662f 8080\uff09\uff1a\n<ul>\n<li>\u6dfb\u52a0\u89c4\u5219\uff1a<code>sudo iptables -I INPUT -p tcp -m tcp --dport 8080 -j ACCEPT<\/code><\/li>\n<li>\u4fdd\u5b58\u89c4\u5219\uff1a<code>sudo \/etc\/rc.d\/init.d\/iptables save<\/code><\/li>\n<li>\u91cd\u542f iptables\uff1a<code>sudo service iptables restart<\/code><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li>\u6d4b\u8bd5\u5b89\u88c5\u597d\u540e\u7684 Tomcat\uff1a\n<ul>\n<li>\u542f\u52a8 Tomcat\uff1a<code>sh \/usr\/program\/tomcat8\/bin\/startup.sh ; tail -200f \/usr\/program\/tomcat8\/logs\/catalina.out<\/code><\/li>\n<li>\u8bbf\u95ee\uff1a<code>http:\/\/\u670d\u52a1\u5668 IP \u5730\u5740:8080\/<\/code><\/li>\n<li>\u505c\u6b62 Tomcat\uff1a<code>sh \/usr\/program\/tomcat8\/bin\/shutdown.sh<\/code><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h2>Tomcat 8 \u914d\u7f6e<\/h2>\n<ul>\n<li>\u8bbe\u7f6e Tomcat \u76f8\u5173\u53d8\u91cf\uff1a\n<ul>\n<li><code>sudo vim \/usr\/program\/tomcat8\/bin\/catalina.sh<\/code><\/li>\n<li>\u5728\u914d\u7f6e\u6587\u4ef6\u7684\u53ef\u7f16\u8f91\u5185\u5bb9\u6700\u4e0a\u9762\uff0898 \u884c\u5f00\u59cb\uff09\uff0c\u52a0\u4e0a\u5982\u4e0b\u5185\u5bb9\uff08\u5177\u4f53\u53c2\u6570\u6839\u636e\u4f60\u670d\u52a1\u5668\u60c5\u51b5\u81ea\u884c\u4fee\u6539\uff09\uff1a\n<pre class=\"hljs ini\"><code class=\"ini\"><span class=\"hljs-attr\">JAVA_HOME<\/span>=\/usr\/program\/jdk1.<span class=\"hljs-number\">8.0<\/span>_72\n<span class=\"hljs-attr\">CATALINA_HOME<\/span>=\/usr\/program\/tomcat8\n<span class=\"hljs-attr\">CATALINA_OPTS<\/span>=<span class=\"hljs-string\">\"-server -Xms528m -Xmx528m -XX:PermSize=256m -XX:MaxPermSize=358m\"<\/span>\n<span class=\"hljs-attr\">CATALINA_PID<\/span>=<span class=\"hljs-variable\">$CATALINA_HOME<\/span>\/catalina.pid<\/code><\/pre>\n<\/li>\n<\/ul>\n<\/li>\n<li>\u5982\u679c\u4f7f\u7528 <code>shutdown.sh<\/code> \u8fd8\u65e0\u6cd5\u505c\u6b62 tomcat\uff0c\u53ef\u4ee5\u4fee\u6539\u5176\u914d\u7f6e\uff1a<code>vim \/usr\/program\/tomcat8\/bin\/shutdown.sh<\/code>\n<ul>\n<li>\u628a\u6700\u5c3e\u5df4\u8fd9\u4e00\u884c\uff1a<code>exec \"$PRGDIR\"\/\"$EXECUTABLE\" stop \"$@\"<\/code><\/li>\n<li>\u6539\u4e3a\uff1a<code>exec \"$PRGDIR\"\/\"$EXECUTABLE\" stop 10 -force<\/code><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h2>Tomcat 8 \u4f18\u5316<\/h2>\n<ul>\n<li>Tomcat 6\/7\/8 \u7684\u4f18\u5316\u53c2\u6570\u6709\u70b9\u4e0d\u4e00\u6837\uff0c\u6700\u597d\u6309\u4e0b\u9762\u7684\u65b9\u5f0f\u770b\u4e00\u4e0b\u5b98\u7f51\u8fd9\u4e2a\u6587\u6863\u662f\u5426\u8fd8\u4fdd\u7559\u7740\u8fd9\u4e2a\u53c2\u6570<\/li>\n<li>\u542f\u52a8tomcat\uff0c\u8bbf\u95ee\u8be5\u5730\u5740\uff0c\u4e0b\u9762\u8981\u8bb2\u89e3\u7684\u4e00\u4e9b\u914d\u7f6e\u4fe1\u606f\uff0c\u5728\u8be5\u6587\u6863\u4e0b\u90fd\u6709\u8bf4\u660e\u7684\uff1a\n<ul>\n<li>\u6587\u6863\uff1a<a href=\"http:\/\/127.0.0.1:8080\/docs\/config\" target=\"_blank\" rel=\"noopener\">http:\/\/127.0.0.1:8080\/docs\/config<\/a><\/li>\n<li>\u4f60\u4e5f\u53ef\u4ee5\u76f4\u63a5\u770b\u7f51\u7edc\u7248\u672c\uff1a\n<ul>\n<li>Tomcat 6 \u6587\u6863\uff1a<a href=\"https:\/\/tomcat.apache.org\/tomcat-6.0-doc\/config\" target=\"_blank\" rel=\"noopener\">https:\/\/tomcat.apache.org\/tomcat-6.0-doc\/config<\/a><\/li>\n<li>Tomcat 7 \u6587\u6863\uff1a<a href=\"https:\/\/tomcat.apache.org\/tomcat-7.0-doc\/config\/\" target=\"_blank\" rel=\"noopener\">https:\/\/tomcat.apache.org\/tomcat-7.0-doc\/config\/<\/a><\/li>\n<li>Tomcat 8 \u6587\u6863\uff1a<a href=\"https:\/\/tomcat.apache.org\/tomcat-8.0-doc\/config\/\" target=\"_blank\" rel=\"noopener\">https:\/\/tomcat.apache.org\/tomcat-8.0-doc\/config\/<\/a><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li>\u5982\u679c\u4f60\u9700\u8981\u67e5\u770b Tomcat \u7684\u8fd0\u884c\u72b6\u6001\u53ef\u4ee5\u914d\u7f6etomcat\u7ba1\u7406\u5458\u8d26\u6237\uff0c\u7136\u540e\u767b\u9646 Tomcat \u540e\u53f0\u8fdb\u884c\u67e5\u770b<\/li>\n<li>\u7f16\u8f91 \/opt\/tomcat7\/bin\/conf\/tomcat-users.xml \u6587\u4ef6\uff0c\u5728\u91cc\u9762\u6dfb\u52a0\u4e0b\u9762\u4fe1\u606f\uff1a\n<pre class=\"hljs xml\"><code class=\"xml\"><span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">role<\/span> <span class=\"hljs-attr\">rolename<\/span>=<span class=\"hljs-string\">\"manager\"<\/span>\/&gt;<\/span>\n<span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">role<\/span> <span class=\"hljs-attr\">rolename<\/span>=<span class=\"hljs-string\">\"manager-gui\"<\/span>\/&gt;<\/span>\n<span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">role<\/span> <span class=\"hljs-attr\">rolename<\/span>=<span class=\"hljs-string\">\"admin\"<\/span>\/&gt;<\/span>\n<span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">role<\/span> <span class=\"hljs-attr\">rolename<\/span>=<span class=\"hljs-string\">\"admin-gui\"<\/span>\/&gt;<\/span>\n<span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">user<\/span> <span class=\"hljs-attr\">username<\/span>=<span class=\"hljs-string\">\"tomcat\"<\/span> <span class=\"hljs-attr\">password<\/span>=<span class=\"hljs-string\">\"tomcat\"<\/span> <span class=\"hljs-attr\">roles<\/span>=<span class=\"hljs-string\">\"admin-gui,admin,manager-gui,manager\"<\/span>\/&gt;<\/span><\/code><\/pre>\n<\/li>\n<li>\u7f16\u8f91\u914d\u7f6e\u6587\u4ef6\uff1a<code>vim \/usr\/program\/tomcat7\/conf\/server.xml<\/code>\n<ul>\n<li>\u6253\u5f00\u9ed8\u8ba4\u88ab\u6ce8\u91ca\u7684\u8fde\u63a5\u6c60\u914d\u7f6e\uff1a\n<ul>\n<li>\u9ed8\u8ba4\u503c\uff1a\n<pre class=\"hljs xml\"><code class=\"xml\"><span class=\"hljs-comment\">&lt;!--\n&lt;Executor name=\"tomcatThreadPool\" namePrefix=\"catalina-exec-\"\n  maxThreads=\"150\" minSpareThreads=\"4\"\/&gt;\n--&gt;<\/span><\/code><\/pre>\n<\/li>\n<li>\u4fee\u6539\u4e3a\uff1a\n<pre class=\"hljs xml\"><code class=\"xml\"><span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">Executor<\/span>\n  <span class=\"hljs-attr\">name<\/span>=<span class=\"hljs-string\">\"tomcatThreadPool\"<\/span>\n  <span class=\"hljs-attr\">namePrefix<\/span>=<span class=\"hljs-string\">\"catalina-exec-\"<\/span>\n  <span class=\"hljs-attr\">maxThreads<\/span>=<span class=\"hljs-string\">\"500\"<\/span>\n  <span class=\"hljs-attr\">minSpareThreads<\/span>=<span class=\"hljs-string\">\"100\"<\/span>\n  <span class=\"hljs-attr\">prestartminSpareThreads<\/span> = <span class=\"hljs-string\">\"true\"<\/span>\n  <span class=\"hljs-attr\">maxQueueSize<\/span> = <span class=\"hljs-string\">\"100\"<\/span>\n\/&gt;<\/span><\/code><\/pre>\n<\/li>\n<li>\u91cd\u70b9\u53c2\u6570\u89e3\u91ca\uff1a\n<ul>\n<li>maxThreads\uff0c\u6700\u5927\u5e76\u53d1\u6570\uff0c\u9ed8\u8ba4\u8bbe\u7f6e 200\uff0c\u4e00\u822c\u5efa\u8bae\u5728 500 ~ 800\uff0c\u6839\u636e\u786c\u4ef6\u8bbe\u65bd\u548c\u4e1a\u52a1\u6765\u5224\u65ad<\/li>\n<li>minSpareThreads\uff0cTomcat \u521d\u59cb\u5316\u65f6\u521b\u5efa\u7684\u7ebf\u7a0b\u6570\uff0c\u9ed8\u8ba4\u8bbe\u7f6e 25<\/li>\n<li>prestartminSpareThreads\uff0c\u5728 Tomcat \u521d\u59cb\u5316\u7684\u65f6\u5019\u5c31\u521d\u59cb\u5316 minSpareThreads \u7684\u53c2\u6570\u503c\uff0c\u5982\u679c\u4e0d\u7b49\u4e8e true\uff0cminSpareThreads \u7684\u503c\u5c31\u6ca1\u5565\u6548\u679c\u4e86<\/li>\n<li>maxQueueSize\uff0c\u6700\u5927\u7684\u7b49\u5f85\u961f\u5217\u6570\uff0c\u8d85\u8fc7\u5219\u62d2\u7edd\u8bf7\u6c42<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li>\u4fee\u6539\u9ed8\u8ba4\u7684\u94fe\u63a5\u53c2\u6570\u914d\u7f6e\uff1a\n<ul>\n<li>\u9ed8\u8ba4\u503c\uff1a\n<pre class=\"hljs xml\"><code class=\"xml\"><span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">Connector<\/span>\n  <span class=\"hljs-attr\">port<\/span>=<span class=\"hljs-string\">\"8080\"<\/span>\n  <span class=\"hljs-attr\">protocol<\/span>=<span class=\"hljs-string\">\"HTTP\/1.1\"<\/span>\n  <span class=\"hljs-attr\">connectionTimeout<\/span>=<span class=\"hljs-string\">\"20000\"<\/span>\n  <span class=\"hljs-attr\">redirectPort<\/span>=<span class=\"hljs-string\">\"8443\"<\/span>\n\/&gt;<\/span><\/code><\/pre>\n<\/li>\n<li>\u4fee\u6539\u4e3a\uff1a\n<pre class=\"hljs xml\"><code class=\"xml\"><span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">Connector<\/span>\n <span class=\"hljs-attr\">executor<\/span>=<span class=\"hljs-string\">\"tomcatThreadPool\"<\/span>\n <span class=\"hljs-attr\">port<\/span>=<span class=\"hljs-string\">\"8080\"<\/span>\n <span class=\"hljs-attr\">protocol<\/span>=<span class=\"hljs-string\">\"org.apache.coyote.http11.Http11Nio2Protocol\"<\/span>\n <span class=\"hljs-attr\">connectionTimeout<\/span>=<span class=\"hljs-string\">\"20000\"<\/span>\n <span class=\"hljs-attr\">maxConnections<\/span>=<span class=\"hljs-string\">\"10000\"<\/span>\n <span class=\"hljs-attr\">redirectPort<\/span>=<span class=\"hljs-string\">\"8443\"<\/span>\n <span class=\"hljs-attr\">enableLookups<\/span>=<span class=\"hljs-string\">\"false\"<\/span>\n <span class=\"hljs-attr\">acceptCount<\/span>=<span class=\"hljs-string\">\"100\"<\/span>\n <span class=\"hljs-attr\">maxPostSize<\/span>=<span class=\"hljs-string\">\"10485760\"<\/span>\n <span class=\"hljs-attr\">compression<\/span>=<span class=\"hljs-string\">\"on\"<\/span>\n <span class=\"hljs-attr\">disableUploadTimeout<\/span>=<span class=\"hljs-string\">\"true\"<\/span>\n <span class=\"hljs-attr\">compressionMinSize<\/span>=<span class=\"hljs-string\">\"2048\"<\/span>\n <span class=\"hljs-attr\">acceptorThreadCount<\/span>=<span class=\"hljs-string\">\"2\"<\/span>\n <span class=\"hljs-attr\">compressableMimeType<\/span>=<span class=\"hljs-string\">\"text\/html,text\/xml,text\/plain,text\/css,text\/javascript,application\/javascript\"<\/span>\n <span class=\"hljs-attr\">URIEncoding<\/span>=<span class=\"hljs-string\">\"utf-8\"<\/span>\n\/&gt;<\/span><\/code><\/pre>\n<\/li>\n<li>\u91cd\u70b9\u53c2\u6570\u89e3\u91ca\uff1a\n<ul>\n<li>protocol\uff0cTomcat 8 \u8bbe\u7f6e nio2 \u66f4\u597d\uff1aorg.apache.coyote.http11.Http11Nio2Protocol\uff08\u5982\u679c\u8fd9\u4e2a\u7528\u4e0d\u4e86\uff0c\u5c31\u7528\u4e0b\u9762\u90a3\u4e2a\uff09<\/li>\n<li>protocol\uff0cTomcat 6\u30017 \u8bbe\u7f6e nio \u66f4\u597d\uff1aorg.apache.coyote.http11.Http11NioProtocol<\/li>\n<li>enableLookups\uff0c\u7981\u7528DNS\u67e5\u8be2<\/li>\n<li>acceptCount\uff0c\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\uff0c\u9ed8\u8ba4\u8bbe\u7f6e 100<\/li>\n<li>maxPostSize\uff0c\u4ee5 FORM URL \u53c2\u6570\u65b9\u5f0f\u7684 POST \u63d0\u4ea4\u65b9\u5f0f\uff0c\u9650\u5236\u63d0\u4ea4\u6700\u5927\u7684\u5927\u5c0f\uff0c\u9ed8\u8ba4\u662f 2097152(2\u5146)\uff0c\u5b83\u4f7f\u7528\u7684\u5355\u4f4d\u662f\u5b57\u8282\u300210485760 \u4e3a 10M\u3002\u5982\u679c\u8981\u7981\u7528\u9650\u5236\uff0c\u5219\u53ef\u4ee5\u8bbe\u7f6e\u4e3a -1\u3002<\/li>\n<li>acceptorThreadCount\uff0c\u7528\u4e8e\u63a5\u6536\u8fde\u63a5\u7684\u7ebf\u7a0b\u7684\u6570\u91cf\uff0c\u9ed8\u8ba4\u503c\u662f1\u3002\u4e00\u822c\u8fd9\u4e2a\u6307\u9700\u8981\u6539\u52a8\u7684\u65f6\u5019\u662f\u56e0\u4e3a\u8be5\u670d\u52a1\u5668\u662f\u4e00\u4e2a\u591a\u6838CPU\uff0c\u5982\u679c\u662f\u591a\u6838 CPU \u4e00\u822c\u914d\u7f6e\u4e3a 2.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li>\u7981\u7528 AJP\uff08\u5982\u679c\u4f60\u670d\u52a1\u5668\u6ca1\u6709\u4f7f\u7528 Apache\uff09\n<ul>\n<li>\u628a\u4e0b\u9762\u8fd9\u4e00\u884c\u6ce8\u91ca\u6389\uff0c\u9ed8\u8ba4 Tomcat \u662f\u5f00\u542f\u7684\u3002\n<pre class=\"hljs xml\"><code class=\"xml\"><span class=\"hljs-comment\">&lt;!-- &lt;Connector port=\"8009\" protocol=\"AJP\/1.3\" redirectPort=\"8443\" \/&gt; --&gt;<\/span><\/code><\/pre>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h2>JVM \u4f18\u5316<\/h2>\n<ul>\n<li>\u6a21\u578b\u8d44\u6599\u6765\u6e90\uff1a<a href=\"http:\/\/xmuzyq.iteye.com\/blog\/599750\" target=\"_blank\" rel=\"noopener\">http:\/\/xmuzyq.iteye.com\/blog\/599750<\/a><\/li>\n<li>Java \u7684\u5185\u5b58\u6a21\u578b\u5206\u4e3a\uff1a\n<ul>\n<li>Young\uff0c\u5e74\u8f7b\u4ee3\uff08\u6613\u88ab GC\uff09\u3002Young \u533a\u88ab\u5212\u5206\u4e3a\u4e09\u90e8\u5206\uff0cEden \u533a\u548c\u4e24\u4e2a\u5927\u5c0f\u4e25\u683c\u76f8\u540c\u7684 Survivor \u533a\uff0c\u5176\u4e2d Survivor \u533a\u95f4\u4e2d\uff0c\u67d0\u4e00\u65f6\u523b\u53ea\u6709\u5176\u4e2d\u4e00\u4e2a\u662f\u88ab\u4f7f\u7528\u7684\uff0c\u53e6\u5916\u4e00\u4e2a\u7559\u505a\u5783\u573e\u6536\u96c6\u65f6\u590d\u5236\u5bf9\u8c61\u7528\uff0c\u5728 Young \u533a\u95f4\u53d8\u6ee1\u7684\u65f6\u5019\uff0cminor GC \u5c31\u4f1a\u5c06\u5b58\u6d3b\u7684\u5bf9\u8c61\u79fb\u5230\u7a7a\u95f2\u7684Survivor \u533a\u95f4\u4e2d\uff0c\u6839\u636e JVM \u7684\u7b56\u7565\uff0c\u5728\u7ecf\u8fc7\u51e0\u6b21\u5783\u573e\u6536\u96c6\u540e\uff0c\u4efb\u7136\u5b58\u6d3b\u4e8e Survivor \u7684\u5bf9\u8c61\u5c06\u88ab\u79fb\u52a8\u5230 Tenured \u533a\u95f4\u3002<\/li>\n<li>Tenured\uff0c\u7ec8\u8eab\u4ee3\u3002Tenured \u533a\u4e3b\u8981\u4fdd\u5b58\u751f\u547d\u5468\u671f\u957f\u7684\u5bf9\u8c61\uff0c\u4e00\u822c\u662f\u4e00\u4e9b\u8001\u7684\u5bf9\u8c61\uff0c\u5f53\u4e00\u4e9b\u5bf9\u8c61\u5728 Young \u590d\u5236\u8f6c\u79fb\u4e00\u5b9a\u7684\u6b21\u6570\u4ee5\u540e\uff0c\u5bf9\u8c61\u5c31\u4f1a\u88ab\u8f6c\u79fb\u5230 Tenured \u533a\uff0c\u4e00\u822c\u5982\u679c\u7cfb\u7edf\u4e2d\u7528\u4e86 application \u7ea7\u522b\u7684\u7f13\u5b58\uff0c\u7f13\u5b58\u4e2d\u7684\u5bf9\u8c61\u5f80\u5f80\u4f1a\u88ab\u8f6c\u79fb\u5230\u8fd9\u4e00\u533a\u95f4\u3002<\/li>\n<li>Perm\uff0c\u6c38\u4e45\u4ee3\u3002\u4e3b\u8981\u4fdd\u5b58 class,method,filed \u5bf9\u8c61\uff0c\u8fd9\u90e8\u95e8\u7684\u7a7a\u95f4\u4e00\u822c\u4e0d\u4f1a\u6ea2\u51fa\uff0c\u9664\u975e\u4e00\u6b21\u6027\u52a0\u8f7d\u4e86\u5f88\u591a\u7684\u7c7b\uff0c\u4e0d\u8fc7\u5728\u6d89\u53ca\u5230\u70ed\u90e8\u7f72\u7684\u5e94\u7528\u670d\u52a1\u5668\u7684\u65f6\u5019\uff0c\u6709\u65f6\u5019\u4f1a\u9047\u5230 java.lang.OutOfMemoryError : PermGen space \u7684\u9519\u8bef\uff0c\u9020\u6210\u8fd9\u4e2a\u9519\u8bef\u7684\u5f88\u5927\u539f\u56e0\u5c31\u6709\u53ef\u80fd\u662f\u6bcf\u6b21\u90fd\u91cd\u65b0\u90e8\u7f72\uff0c\u4f46\u662f\u91cd\u65b0\u90e8\u7f72\u540e\uff0c\u7c7b\u7684 class \u6ca1\u6709\u88ab\u5378\u8f7d\u6389\uff0c\u8fd9\u6837\u5c31\u9020\u6210\u4e86\u5927\u91cf\u7684 class \u5bf9\u8c61\u4fdd\u5b58\u5728\u4e86 perm \u4e2d\uff0c\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u4e00\u822c\u91cd\u65b0\u542f\u52a8\u5e94\u7528\u670d\u52a1\u5668\u53ef\u4ee5\u89e3\u51b3\u95ee\u9898\u3002<\/li>\n<\/ul>\n<\/li>\n<li>Linux \u4fee\u6539 \/usr\/program\/tomcat7\/bin\/catalina.sh \u6587\u4ef6\uff0c\u628a\u4e0b\u9762\u4fe1\u606f\u6dfb\u52a0\u5230\u6587\u4ef6\u7b2c\u4e00\u884c\u3002Windows \u548c Linux \u6709\u70b9\u4e0d\u4e00\u6837\u7684\u5730\u65b9\u5728\u4e8e\uff0c\u5728 Linux \u4e0b\uff0c\u4e0b\u9762\u7684\u7684\u53c2\u6570\u503c\u662f\u88ab\u5f15\u53f7\u5305\u56f4\u7684\uff0c\u800c Windows \u4e0d\u9700\u8981\u5f15\u53f7\u5305\u56f4\u3002\n<ul>\n<li>\u5982\u679c\u670d\u52a1\u5668\u53ea\u8fd0\u884c\u4e00\u4e2a Tomcat\n<ul>\n<li>\u673a\u5b50\u5185\u5b58\u5982\u679c\u662f 8G\uff0c\u4e00\u822c PermSize \u914d\u7f6e\u662f\u4e3b\u8981\u4fdd\u8bc1\u7cfb\u7edf\u80fd\u7a33\u5b9a\u8d77\u6765\u5c31\u884c\uff1a\n<ul>\n<li><code>JAVA_OPTS=\"-Dfile.encoding=UTF-8 -server -Xms6144m -Xmx6144m -XX:NewSize=1024m -XX:MaxNewSize=2048m -XX:PermSize=512m -XX:MaxPermSize=512m -XX:MaxTenuringThreshold=10 -XX:NewRatio=2 -XX:+DisableExplicitGC\"<\/code><\/li>\n<\/ul>\n<\/li>\n<li>\u673a\u5b50\u5185\u5b58\u5982\u679c\u662f 16G\uff0c\u4e00\u822c PermSize \u914d\u7f6e\u662f\u4e3b\u8981\u4fdd\u8bc1\u7cfb\u7edf\u80fd\u7a33\u5b9a\u8d77\u6765\u5c31\u884c\uff1a\n<ul>\n<li><code>JAVA_OPTS=\"-Dfile.encoding=UTF-8 -server -Xms13312m -Xmx13312m -XX:NewSize=3072m -XX:MaxNewSize=4096m -XX:PermSize=512m -XX:MaxPermSize=512m -XX:MaxTenuringThreshold=10 -XX:NewRatio=2 -XX:+DisableExplicitGC\"<\/code><\/li>\n<\/ul>\n<\/li>\n<li>\u673a\u5b50\u5185\u5b58\u5982\u679c\u662f 32G\uff0c\u4e00\u822c PermSize \u914d\u7f6e\u662f\u4e3b\u8981\u4fdd\u8bc1\u7cfb\u7edf\u80fd\u7a33\u5b9a\u8d77\u6765\u5c31\u884c\uff1a\n<ul>\n<li><code>JAVA_OPTS=\"-Dfile.encoding=UTF-8 -server -Xms29696m -Xmx29696m -XX:NewSize=6144m -XX:MaxNewSize=9216m -XX:PermSize=1024m -XX:MaxPermSize=1024m -XX:MaxTenuringThreshold=10 -XX:NewRatio=2 -XX:+DisableExplicitGC\"<\/code><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li>\u5982\u679c\u662f\u5f00\u53d1\u673a\n<ul>\n<li><code>-Xms550m -Xmx1250m -XX:PermSize=550m -XX:MaxPermSize=1250m<\/code><\/li>\n<\/ul>\n<\/li>\n<li>\u53c2\u6570\u8bf4\u660e\uff1a\n<pre class=\"hljs nginx\"><code class=\"nginx\">-Dfile.encoding\uff1a\u9ed8\u8ba4\u6587\u4ef6\u7f16\u7801\n-server\uff1a\u8868\u793a\u8fd9\u662f\u5e94\u7528\u4e8e\u670d\u52a1\u5668\u7684\u914d\u7f6e\uff0c<span class=\"hljs-attribute\">JVM<\/span> \u5185\u90e8\u4f1a\u6709\u7279\u6b8a\u5904\u7406\u7684\n-Xmx1024m\uff1a\u8bbe\u7f6eJVM\u6700\u5927\u53ef\u7528\u5185\u5b58\u4e3a1024MB\n-Xms1024m\uff1a\u8bbe\u7f6eJVM\u6700\u5c0f\u5185\u5b58\u4e3a<span class=\"hljs-number\">1024m<\/span>\u3002\u6b64\u503c\u53ef\u4ee5\u8bbe\u7f6e\u4e0e-Xmx\u76f8\u540c\uff0c\u4ee5\u907f\u514d\u6bcf\u6b21\u5783\u573e\u56de\u6536\u5b8c\u6210\u540eJVM\u91cd\u65b0\u5206\u914d\u5185\u5b58\u3002\n-XX:NewSize\uff1a\u8bbe\u7f6e\u5e74\u8f7b\u4ee3\u5927\u5c0f\n-XX:MaxNewSize\uff1a\u8bbe\u7f6e\u6700\u5927\u7684\u5e74\u8f7b\u4ee3\u5927\u5c0f\n-XX:PermSize\uff1a\u8bbe\u7f6e\u6c38\u4e45\u4ee3\u5927\u5c0f\n-XX:MaxPermSize\uff1a\u8bbe\u7f6e\u6700\u5927\u6c38\u4e45\u4ee3\u5927\u5c0f\n-XX:NewRatio=<span class=\"hljs-number\">4<\/span>\uff1a\u8bbe\u7f6e\u5e74\u8f7b\u4ee3\uff08\u5305\u62ec Eden \u548c\u4e24\u4e2a Survivor \u533a\uff09\u4e0e\u7ec8\u8eab\u4ee3\u7684\u6bd4\u503c\uff08\u9664\u53bb\u6c38\u4e45\u4ee3\uff09\u3002\u8bbe\u7f6e\u4e3a <span class=\"hljs-number\">4<\/span>\uff0c\u5219\u5e74\u8f7b\u4ee3\u4e0e\u7ec8\u8eab\u4ee3\u6240\u5360\u6bd4\u503c\u4e3a <span class=\"hljs-number\">1<\/span>\uff1a<span class=\"hljs-number\">4<\/span>\uff0c\u5e74\u8f7b\u4ee3\u5360\u6574\u4e2a\u5806\u6808\u7684 <span class=\"hljs-number\">1<\/span>\/<span class=\"hljs-number\">5<\/span>\n-XX:MaxTenuringThreshold=<span class=\"hljs-number\">10<\/span>\uff1a\u8bbe\u7f6e\u5783\u573e\u6700\u5927\u5e74\u9f84\uff0c\u9ed8\u8ba4\u4e3a\uff1a<span class=\"hljs-number\">15<\/span>\u3002\u5982\u679c\u8bbe\u7f6e\u4e3a <span class=\"hljs-number\">0<\/span> \u7684\u8bdd\uff0c\u5219\u5e74\u8f7b\u4ee3\u5bf9\u8c61\u4e0d\u7ecf\u8fc7 Survivor \u533a\uff0c\u76f4\u63a5\u8fdb\u5165\u5e74\u8001\u4ee3\u3002\u5bf9\u4e8e\u5e74\u8001\u4ee3\u6bd4\u8f83\u591a\u7684\u5e94\u7528\uff0c\u53ef\u4ee5\u63d0\u9ad8\u6548\u7387\u3002\u5982\u679c\u5c06\u6b64\u503c\u8bbe\u7f6e\u4e3a\u4e00\u4e2a\u8f83\u5927\u503c\uff0c\u5219\u5e74\u8f7b\u4ee3\u5bf9\u8c61\u4f1a\u5728 Survivor \u533a\u8fdb\u884c\u591a\u6b21\u590d\u5236\uff0c\u8fd9\u6837\u53ef\u4ee5\u589e\u52a0\u5bf9\u8c61\u518d\u5e74\u8f7b\u4ee3\u7684\u5b58\u6d3b\u65f6\u95f4\uff0c\u589e\u52a0\u5728\u5e74\u8f7b\u4ee3\u5373\u88ab\u56de\u6536\u7684\u6982\u8bba\u3002\n-XX:+DisableExplicitGC\uff1a\u8fd9\u4e2a\u5c06\u4f1a\u5ffd\u7565\u624b\u52a8\u8c03\u7528 GC \u7684\u4ee3\u7801\u4f7f\u5f97 System.gc() \u7684\u8c03\u7528\u5c31\u4f1a\u53d8\u6210\u4e00\u4e2a\u7a7a\u8c03\u7528\uff0c\u5b8c\u5168\u4e0d\u4f1a\u89e6\u53d1\u4efb\u4f55 GC<\/code><\/pre>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h2>\u5176\u4ed6<\/h2>\n<ul>\n<li>Tomcat \u5386\u53f2\u7248\u672c\u4e0b\u8f7d\u5730\u5740\u6574\u7406\uff08\u4e0d\u95f4\u65ad\u66f4\u65b0\uff09\uff1a\n<ul>\n<li><strong>Tomcat 9.0.0.M4<\/strong>\uff1a<code>wget http:\/\/mirror.bit.edu.cn\/apache\/tomcat\/tomcat-9\/v9.0.0.M4\/bin\/apache-tomcat-9.0.0.M4.tar.gz<\/code><\/li>\n<li><strong>Tomcat 8.0.32<\/strong>\uff1a<code>wget http:\/\/mirror.bit.edu.cn\/apache\/tomcat\/tomcat-8\/v8.0.32\/bin\/apache-tomcat-8.0.32.tar.gz<\/code><\/li>\n<li><strong>Tomcat 7.0.68<\/strong>\uff1a<code>wget http:\/\/apache.fayea.com\/tomcat\/tomcat-7\/v7.0.68\/bin\/apache-tomcat-7.0.68.tar.gz<\/code><\/li>\n<li><strong>Tomcat 6.0.45<\/strong>\uff1a<code>wget http:\/\/mirrors.cnnic.cn\/apache\/tomcat\/tomcat-6\/v6.0.45\/bin\/apache-tomcat-6.0.45.tar.gz<\/code><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h2>\u8d44\u6599<\/h2>\n<ul>\n<li><a href=\"http:\/\/www.jikexueyuan.com\/course\/2064_3.html?ss=1\" target=\"_blank\" rel=\"noopener\">http:\/\/www.jikexueyuan.com\/course\/2064_3.html?ss=1<\/a><\/li>\n<li><a href=\"http:\/\/www.wellho.net\/mouth\/2163_CATALINA-OPTS-v-JAVA-OPTS-What-is-the-difference-.html\" target=\"_blank\" rel=\"noopener\">http:\/\/www.wellho.net\/mouth\/2163_CATALINA-OPTS-v-JAVA-OPTS-What-is-the-difference-.html<\/a><\/li>\n<li><a href=\"http:\/\/blog.csdn.net\/sunlovefly2012\/article\/details\/47395165\" target=\"_blank\" rel=\"noopener\">http:\/\/blog.csdn.net\/sunlovefly2012\/article\/details\/47395165<\/a><\/li>\n<li><a href=\"http:\/\/blog.csdn.net\/lifetragedy\/article\/details\/7708724\" target=\"_blank\" rel=\"noopener\">http:\/\/blog.csdn.net\/lifetragedy\/article\/details\/7708724<\/a><\/li>\n<li><a href=\"http:\/\/ihuangweiwei.iteye.com\/blog\/1233941\" target=\"_blank\" rel=\"noopener\">http:\/\/ihuangweiwei.iteye.com\/blog\/1233941<\/a><\/li>\n<li><a href=\"http:\/\/www.cnblogs.com\/ggjucheng\/archive\/2013\/04\/16\/3024731.html\" target=\"_blank\" rel=\"noopener\">http:\/\/www.cnblogs.com\/ggjucheng\/archive\/2013\/04\/16\/3024731.html<\/a><\/li>\n<li><a href=\"https:\/\/tomcat.apache.org\/tomcat-8.0-doc\/config\/http.html#Connector_Comparison\" target=\"_blank\" rel=\"noopener\">https:\/\/tomcat.apache.org\/tomcat-8.0-doc\/config\/http.html#Connector_Comparison<\/a><\/li>\n<li><a href=\"http:\/\/www.apelearn.com\/study_v2\/chapter23.html\" target=\"_blank\" rel=\"noopener\">http:\/\/www.apelearn.com\/study_v2\/chapter23.html<\/a><\/li>\n<\/ul>\n<\/div>\n<pre>\n\n\u4f5c\u8005\uff1a\u4e56\u4e56\u5c0f\u6052\u6052\n\u94fe\u63a5\uff1ahttp:\/\/www.jianshu.com\/p\/c8613d17e5fe\n\u4f86\u6e90\uff1a\u7b80\u4e66\n\u8457\u4f5c\u6743\u5f52\u4f5c\u8005\u6240\u6709\u3002\u5546\u4e1a\u8f6c\u8f7d\u8bf7\u8054\u7cfb\u4f5c\u8005\u83b7\u5f97\u6388\u6743\uff0c\u975e\u5546\u4e1a\u8f6c\u8f7d\u8bf7\u6ce8\u660e\u51fa\u5904\u3002<\/pre>\n","protected":false},"excerpt":{"rendered":"<p>Tomcat 8 \u5b89\u88c5 Tomcat 8 \u5b89\u88c5 \u5b98\u7f51\uff1ahttp:\/\/tomcat.apache.org\/ Tomcat 8 \u5b98\u7f51\u4e0b\u8f7d\uff1ahttp:\/\/tomcat.apache.org\/download-80.cgi \u6b64\u65f6\uff0820160509\uff09 Tomcat 8 \u6700\u65b0\u7248\u672c\u4e3a\uff1aapache-tomcat-8.0.32.tar.gz \u6211\u4e2a\u4eba\u4e60\u60ef \/opt \u76ee\u5f55\u4e0b\u521b\u5efa\u4e00\u4e2a\u76ee\u5f55 setups \u7528\u6765\u5b58\u653e\u5404\u79cd\u8f6f\u4ef6\u5b89\u88c5\u5305\uff1b\u5728 \/usr [&hellip;]<\/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 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