ravi kumar gupta 14 Years Ago nicely written.. following u frm now.. Please sign in to reply. Reply as... Cancel
Riccardo Rotondo 13 Years Ago Hi, nice guide. Thank you. I have a question. I have read many guides to optimize tomcat. Usually they suggest to add option -server in catalina.sh but you didn't metion. Why?Thanks for helpBye Please sign in to reply. Reply as... Cancel Shuyang Zhou Riccardo Rotondo 13 Years Ago This supposed to be general, not tie to any app-server. But since you are asking about tomcat, here are some tomcat only tricks you can do to improve GC.1)In conf/web.xml, set Jasper property genStrAsCharArray = false. This may seem a little odd, most people will tell you set it to true. But if you take a look at our StringBundler and JspFactorySwapper, you will see why.2)In conf/server.xml, add socketBuffer="-1" to your connector setting. This will trun off that connector's out going socket buffer. The upper logic has done all buffer, no need to buffer again.3)If you are using a newer version of tomcat which support Servlet Sepc2.5, in webapps/ROOT/WEB-INF/web.xml change the root element define to <web-app xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/j2ee/web-app_2_5.xsd" version="2.5" metadata-complete="true">. This tells tomcat to skip JavaEE standard annotations dependency lookup, since liferay is not using them.With these 3 settings, you can see a significant GC difference. Try it yourself Please sign in to reply. Reply as... Cancel Neon Liu Shuyang Zhou 13 Years Ago Great post on jvm tuning Please sign in to reply. Reply as... Cancel Riccardo Rotondo Shuyang Zhou 13 Years Ago Thank you, I set parameter as you suggested. Despite the fact my server has only 4 GB RAM now it works better. Thank you very much for your help! Please sign in to reply. Reply as... Cancel Riccardo Rotondo Riccardo Rotondo 13 Years Ago Hi all. Can this option be used for Liferay 6.0.5 ?? I have just tried but I get this error: INFO: Server startup in 22550 ms11:35:45,699 ERROR [IncludeTag:231] Current URL / generates exception: java.lang.OutOfMemoryError: PermGen space11:35:45,703 ERROR [IncludeTag:154] java.lang.OutOfMemoryError: PermGen space at java.lang.ClassLoader.defineClass(ClassLoader.java:632) at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) at java.net.URLClassLoader.defineClass(URLClassLoader.java:277) at java.net.URLClassLoader.access$000(URLClassLoader.java:73) at java.net.URLClassLoader$1.run(URLClassLoader.java:212) at java.net.URLClassLoader.findClass(URLClassLoader.java:205) at org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:134) at org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:66) at org.apache.jasper.JspCompilationContext.load(JspCompilationContext.java:628) at org.apache.jasper.servlet.JspServletWrapper.getServlet(JspServletWrapper.java:144) at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:329) at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313) at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260) at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:646) at org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:551) at org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:488) at com.liferay.taglib.util.IncludeTag.include(IncludeTag.java:175)11:35:49,196 ERROR [IncludeTag:231] Current URL / generates exception: java.lang.OutOfMemoryError: PermGen space11:35:49,197 ERROR [IncludeTag:154] java.lang.OutOfMemoryError: PermGen space at java.lang.ClassLoader.defineClass(ClassLoader.java:632) at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) at java.net.URLClassLoader.defineClass(URLClassLoader.java:277) at java.net.URLClassLoader.access$000(URLClassLoader.java:73) at java.net.URLClassLoader$1.run(URLClassLoader.java:212) at java.net.URLClassLoader.findClass(URLClassLoader.java:205) at org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:134) at org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:66) at org.apache.jasper.JspCompilationContext.load(JspCompilationContext.java:628) at org.apache.jasper.servlet.JspServletWrapper.getServlet(JspServletWrapper.java:144) at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:329) at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313) at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260) at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:646) at org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:551) at org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:488) at com.liferay.taglib.util.IncludeTag.include(IncludeTag.java:175)11:35:53,370 ERROR [IncludeTag:231] Current URL / generates exception: java.lang.OutOfMemoryError: PermGen space11:35:53,372 ERROR [IncludeTag:154] java.lang.OutOfMemoryError: PermGen space at java.lang.ClassLoader.defineClass(ClassLoader.java:632) at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) at java.net.URLClassLoader.defineClass(URLClassLoader.java:277) at java.net.URLClassLoader.access$000(URLClassLoader.java:73) at java.net.URLClassLoader$1.run(URLClassLoader.java:212) at java.net.URLClassLoader.findClass(URLClassLoader.java:205) at org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:134) at org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:66) at org.apache.jasper.JspCompilationContext.load(JspCompilationContext.java:628) at org.apache.jasper.servlet.JspServletWrapper.getServlet(JspServletWrapper.java:144) at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:329) at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313) at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260) at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:646) at org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:551) at org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:488) at com.liferay.taglib.util.IncludeTag.include(IncludeTag.java:175)11:35:57,071 ERROR [IncludeTag:231] Current URL / generates exception: java.lang.OutOfMemoryError: PermGen space11:35:57,072 ERROR [IncludeTag:154] java.lang.OutOfMemoryError: PermGen space11:35:59,656 ERROR [IncludeTag:231] Current URL / generates exception: java.lang.OutOfMemoryError: PermGen space11:35:59,657 ERROR [IncludeTag:154] java.lang.OutOfMemoryError: PermGen space Please sign in to reply. Reply as... Cancel Shuyang Zhou Riccardo Rotondo 13 Years Ago You should increase your perm space size to 256mb, liferay 60x has larger code base.-XX:MaxPermSize=256m Please sign in to reply. Reply as... Cancel
Shuyang Zhou Riccardo Rotondo 13 Years Ago This supposed to be general, not tie to any app-server. But since you are asking about tomcat, here are some tomcat only tricks you can do to improve GC.1)In conf/web.xml, set Jasper property genStrAsCharArray = false. This may seem a little odd, most people will tell you set it to true. But if you take a look at our StringBundler and JspFactorySwapper, you will see why.2)In conf/server.xml, add socketBuffer="-1" to your connector setting. This will trun off that connector's out going socket buffer. The upper logic has done all buffer, no need to buffer again.3)If you are using a newer version of tomcat which support Servlet Sepc2.5, in webapps/ROOT/WEB-INF/web.xml change the root element define to <web-app xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/j2ee/web-app_2_5.xsd" version="2.5" metadata-complete="true">. This tells tomcat to skip JavaEE standard annotations dependency lookup, since liferay is not using them.With these 3 settings, you can see a significant GC difference. Try it yourself Please sign in to reply. Reply as... Cancel Neon Liu Shuyang Zhou 13 Years Ago Great post on jvm tuning Please sign in to reply. Reply as... Cancel Riccardo Rotondo Shuyang Zhou 13 Years Ago Thank you, I set parameter as you suggested. Despite the fact my server has only 4 GB RAM now it works better. Thank you very much for your help! Please sign in to reply. Reply as... Cancel Riccardo Rotondo Riccardo Rotondo 13 Years Ago Hi all. Can this option be used for Liferay 6.0.5 ?? I have just tried but I get this error: INFO: Server startup in 22550 ms11:35:45,699 ERROR [IncludeTag:231] Current URL / generates exception: java.lang.OutOfMemoryError: PermGen space11:35:45,703 ERROR [IncludeTag:154] java.lang.OutOfMemoryError: PermGen space at java.lang.ClassLoader.defineClass(ClassLoader.java:632) at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) at java.net.URLClassLoader.defineClass(URLClassLoader.java:277) at java.net.URLClassLoader.access$000(URLClassLoader.java:73) at java.net.URLClassLoader$1.run(URLClassLoader.java:212) at java.net.URLClassLoader.findClass(URLClassLoader.java:205) at org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:134) at org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:66) at org.apache.jasper.JspCompilationContext.load(JspCompilationContext.java:628) at org.apache.jasper.servlet.JspServletWrapper.getServlet(JspServletWrapper.java:144) at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:329) at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313) at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260) at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:646) at org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:551) at org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:488) at com.liferay.taglib.util.IncludeTag.include(IncludeTag.java:175)11:35:49,196 ERROR [IncludeTag:231] Current URL / generates exception: java.lang.OutOfMemoryError: PermGen space11:35:49,197 ERROR [IncludeTag:154] java.lang.OutOfMemoryError: PermGen space at java.lang.ClassLoader.defineClass(ClassLoader.java:632) at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) at java.net.URLClassLoader.defineClass(URLClassLoader.java:277) at java.net.URLClassLoader.access$000(URLClassLoader.java:73) at java.net.URLClassLoader$1.run(URLClassLoader.java:212) at java.net.URLClassLoader.findClass(URLClassLoader.java:205) at org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:134) at org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:66) at org.apache.jasper.JspCompilationContext.load(JspCompilationContext.java:628) at org.apache.jasper.servlet.JspServletWrapper.getServlet(JspServletWrapper.java:144) at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:329) at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313) at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260) at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:646) at org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:551) at org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:488) at com.liferay.taglib.util.IncludeTag.include(IncludeTag.java:175)11:35:53,370 ERROR [IncludeTag:231] Current URL / generates exception: java.lang.OutOfMemoryError: PermGen space11:35:53,372 ERROR [IncludeTag:154] java.lang.OutOfMemoryError: PermGen space at java.lang.ClassLoader.defineClass(ClassLoader.java:632) at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) at java.net.URLClassLoader.defineClass(URLClassLoader.java:277) at java.net.URLClassLoader.access$000(URLClassLoader.java:73) at java.net.URLClassLoader$1.run(URLClassLoader.java:212) at java.net.URLClassLoader.findClass(URLClassLoader.java:205) at org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:134) at org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:66) at org.apache.jasper.JspCompilationContext.load(JspCompilationContext.java:628) at org.apache.jasper.servlet.JspServletWrapper.getServlet(JspServletWrapper.java:144) at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:329) at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313) at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260) at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:646) at org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:551) at org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:488) at com.liferay.taglib.util.IncludeTag.include(IncludeTag.java:175)11:35:57,071 ERROR [IncludeTag:231] Current URL / generates exception: java.lang.OutOfMemoryError: PermGen space11:35:57,072 ERROR [IncludeTag:154] java.lang.OutOfMemoryError: PermGen space11:35:59,656 ERROR [IncludeTag:231] Current URL / generates exception: java.lang.OutOfMemoryError: PermGen space11:35:59,657 ERROR [IncludeTag:154] java.lang.OutOfMemoryError: PermGen space Please sign in to reply. Reply as... Cancel Shuyang Zhou Riccardo Rotondo 13 Years Ago You should increase your perm space size to 256mb, liferay 60x has larger code base.-XX:MaxPermSize=256m Please sign in to reply. Reply as... Cancel
Neon Liu Shuyang Zhou 13 Years Ago Great post on jvm tuning Please sign in to reply. Reply as... Cancel
Riccardo Rotondo Shuyang Zhou 13 Years Ago Thank you, I set parameter as you suggested. Despite the fact my server has only 4 GB RAM now it works better. Thank you very much for your help! Please sign in to reply. Reply as... Cancel Riccardo Rotondo Riccardo Rotondo 13 Years Ago Hi all. Can this option be used for Liferay 6.0.5 ?? I have just tried but I get this error: INFO: Server startup in 22550 ms11:35:45,699 ERROR [IncludeTag:231] Current URL / generates exception: java.lang.OutOfMemoryError: PermGen space11:35:45,703 ERROR [IncludeTag:154] java.lang.OutOfMemoryError: PermGen space at java.lang.ClassLoader.defineClass(ClassLoader.java:632) at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) at java.net.URLClassLoader.defineClass(URLClassLoader.java:277) at java.net.URLClassLoader.access$000(URLClassLoader.java:73) at java.net.URLClassLoader$1.run(URLClassLoader.java:212) at java.net.URLClassLoader.findClass(URLClassLoader.java:205) at org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:134) at org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:66) at org.apache.jasper.JspCompilationContext.load(JspCompilationContext.java:628) at org.apache.jasper.servlet.JspServletWrapper.getServlet(JspServletWrapper.java:144) at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:329) at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313) at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260) at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:646) at org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:551) at org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:488) at com.liferay.taglib.util.IncludeTag.include(IncludeTag.java:175)11:35:49,196 ERROR [IncludeTag:231] Current URL / generates exception: java.lang.OutOfMemoryError: PermGen space11:35:49,197 ERROR [IncludeTag:154] java.lang.OutOfMemoryError: PermGen space at java.lang.ClassLoader.defineClass(ClassLoader.java:632) at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) at java.net.URLClassLoader.defineClass(URLClassLoader.java:277) at java.net.URLClassLoader.access$000(URLClassLoader.java:73) at java.net.URLClassLoader$1.run(URLClassLoader.java:212) at java.net.URLClassLoader.findClass(URLClassLoader.java:205) at org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:134) at org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:66) at org.apache.jasper.JspCompilationContext.load(JspCompilationContext.java:628) at org.apache.jasper.servlet.JspServletWrapper.getServlet(JspServletWrapper.java:144) at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:329) at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313) at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260) at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:646) at org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:551) at org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:488) at com.liferay.taglib.util.IncludeTag.include(IncludeTag.java:175)11:35:53,370 ERROR [IncludeTag:231] Current URL / generates exception: java.lang.OutOfMemoryError: PermGen space11:35:53,372 ERROR [IncludeTag:154] java.lang.OutOfMemoryError: PermGen space at java.lang.ClassLoader.defineClass(ClassLoader.java:632) at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) at java.net.URLClassLoader.defineClass(URLClassLoader.java:277) at java.net.URLClassLoader.access$000(URLClassLoader.java:73) at java.net.URLClassLoader$1.run(URLClassLoader.java:212) at java.net.URLClassLoader.findClass(URLClassLoader.java:205) at org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:134) at org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:66) at org.apache.jasper.JspCompilationContext.load(JspCompilationContext.java:628) at org.apache.jasper.servlet.JspServletWrapper.getServlet(JspServletWrapper.java:144) at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:329) at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313) at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260) at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:646) at org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:551) at org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:488) at com.liferay.taglib.util.IncludeTag.include(IncludeTag.java:175)11:35:57,071 ERROR [IncludeTag:231] Current URL / generates exception: java.lang.OutOfMemoryError: PermGen space11:35:57,072 ERROR [IncludeTag:154] java.lang.OutOfMemoryError: PermGen space11:35:59,656 ERROR [IncludeTag:231] Current URL / generates exception: java.lang.OutOfMemoryError: PermGen space11:35:59,657 ERROR [IncludeTag:154] java.lang.OutOfMemoryError: PermGen space Please sign in to reply. Reply as... Cancel Shuyang Zhou Riccardo Rotondo 13 Years Ago You should increase your perm space size to 256mb, liferay 60x has larger code base.-XX:MaxPermSize=256m Please sign in to reply. Reply as... Cancel
Riccardo Rotondo Riccardo Rotondo 13 Years Ago Hi all. Can this option be used for Liferay 6.0.5 ?? I have just tried but I get this error: INFO: Server startup in 22550 ms11:35:45,699 ERROR [IncludeTag:231] Current URL / generates exception: java.lang.OutOfMemoryError: PermGen space11:35:45,703 ERROR [IncludeTag:154] java.lang.OutOfMemoryError: PermGen space at java.lang.ClassLoader.defineClass(ClassLoader.java:632) at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) at java.net.URLClassLoader.defineClass(URLClassLoader.java:277) at java.net.URLClassLoader.access$000(URLClassLoader.java:73) at java.net.URLClassLoader$1.run(URLClassLoader.java:212) at java.net.URLClassLoader.findClass(URLClassLoader.java:205) at org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:134) at org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:66) at org.apache.jasper.JspCompilationContext.load(JspCompilationContext.java:628) at org.apache.jasper.servlet.JspServletWrapper.getServlet(JspServletWrapper.java:144) at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:329) at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313) at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260) at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:646) at org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:551) at org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:488) at com.liferay.taglib.util.IncludeTag.include(IncludeTag.java:175)11:35:49,196 ERROR [IncludeTag:231] Current URL / generates exception: java.lang.OutOfMemoryError: PermGen space11:35:49,197 ERROR [IncludeTag:154] java.lang.OutOfMemoryError: PermGen space at java.lang.ClassLoader.defineClass(ClassLoader.java:632) at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) at java.net.URLClassLoader.defineClass(URLClassLoader.java:277) at java.net.URLClassLoader.access$000(URLClassLoader.java:73) at java.net.URLClassLoader$1.run(URLClassLoader.java:212) at java.net.URLClassLoader.findClass(URLClassLoader.java:205) at org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:134) at org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:66) at org.apache.jasper.JspCompilationContext.load(JspCompilationContext.java:628) at org.apache.jasper.servlet.JspServletWrapper.getServlet(JspServletWrapper.java:144) at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:329) at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313) at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260) at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:646) at org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:551) at org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:488) at com.liferay.taglib.util.IncludeTag.include(IncludeTag.java:175)11:35:53,370 ERROR [IncludeTag:231] Current URL / generates exception: java.lang.OutOfMemoryError: PermGen space11:35:53,372 ERROR [IncludeTag:154] java.lang.OutOfMemoryError: PermGen space at java.lang.ClassLoader.defineClass(ClassLoader.java:632) at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) at java.net.URLClassLoader.defineClass(URLClassLoader.java:277) at java.net.URLClassLoader.access$000(URLClassLoader.java:73) at java.net.URLClassLoader$1.run(URLClassLoader.java:212) at java.net.URLClassLoader.findClass(URLClassLoader.java:205) at org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:134) at org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:66) at org.apache.jasper.JspCompilationContext.load(JspCompilationContext.java:628) at org.apache.jasper.servlet.JspServletWrapper.getServlet(JspServletWrapper.java:144) at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:329) at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313) at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260) at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:646) at org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:551) at org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:488) at com.liferay.taglib.util.IncludeTag.include(IncludeTag.java:175)11:35:57,071 ERROR [IncludeTag:231] Current URL / generates exception: java.lang.OutOfMemoryError: PermGen space11:35:57,072 ERROR [IncludeTag:154] java.lang.OutOfMemoryError: PermGen space11:35:59,656 ERROR [IncludeTag:231] Current URL / generates exception: java.lang.OutOfMemoryError: PermGen space11:35:59,657 ERROR [IncludeTag:154] java.lang.OutOfMemoryError: PermGen space Please sign in to reply. Reply as... Cancel Shuyang Zhou Riccardo Rotondo 13 Years Ago You should increase your perm space size to 256mb, liferay 60x has larger code base.-XX:MaxPermSize=256m Please sign in to reply. Reply as... Cancel
Shuyang Zhou Riccardo Rotondo 13 Years Ago You should increase your perm space size to 256mb, liferay 60x has larger code base.-XX:MaxPermSize=256m Please sign in to reply. Reply as... Cancel
Lulu Liu 12 Years Ago Nice! Thanks! Please sign in to reply. Reply as... Cancel Manish Kumar Jaiswal Lulu Liu DO Hung Thuan 11 Years Ago HiI have poblem, i run liferay 6.0.6, when i run about 3 days, PS old gen memory to full 100%, i run GC anytime but not reducedI run: -XX:UseParallelOldGC. Please sign in to reply. Reply as... Cancel Cosco SCJ 11 Years Ago Good article.I need to increase my PermGen parameter to 256m.Now, sometimes i have this error: "Attempt to allocate stack guard pages failed newsize" Could you please help me? thanks Please sign in to reply. Reply as... Cancel Muhammad Umer Zubair 10 Years Ago Thanks for the very informative article. I have tried the settings with -Xmx 2048m, but apache does not startup. I have 8 gb ram and corei7 machine. Server starts up with 1048 memory settings. Please sign in to reply. Reply as... Cancel (You) 9 Years Ago [...] 5 tips for proper Java Heap size. Young Generation. Liferay JVM Tuning. How to Monitor Java Garbage Collection. Liferay Tips: Liferay Performance Tuning. Tuning Tomcat Performance For Optimum Speed... [...] Read More Please sign in to reply. Reply as... Cancel Vishal Panchal 7 Years Ago Excellent explanation, thanks for sharing - Vishal Please sign in to reply. Reply as... Cancel
Manish Kumar Jaiswal Lulu Liu DO Hung Thuan 11 Years Ago HiI have poblem, i run liferay 6.0.6, when i run about 3 days, PS old gen memory to full 100%, i run GC anytime but not reducedI run: -XX:UseParallelOldGC. Please sign in to reply. Reply as... Cancel Cosco SCJ 11 Years Ago Good article.I need to increase my PermGen parameter to 256m.Now, sometimes i have this error: "Attempt to allocate stack guard pages failed newsize" Could you please help me? thanks Please sign in to reply. Reply as... Cancel Muhammad Umer Zubair 10 Years Ago Thanks for the very informative article. I have tried the settings with -Xmx 2048m, but apache does not startup. I have 8 gb ram and corei7 machine. Server starts up with 1048 memory settings. Please sign in to reply. Reply as... Cancel (You) 9 Years Ago [...] 5 tips for proper Java Heap size. Young Generation. Liferay JVM Tuning. How to Monitor Java Garbage Collection. Liferay Tips: Liferay Performance Tuning. Tuning Tomcat Performance For Optimum Speed... [...] Read More Please sign in to reply. Reply as... Cancel Vishal Panchal 7 Years Ago Excellent explanation, thanks for sharing - Vishal Please sign in to reply. Reply as... Cancel
DO Hung Thuan 11 Years Ago HiI have poblem, i run liferay 6.0.6, when i run about 3 days, PS old gen memory to full 100%, i run GC anytime but not reducedI run: -XX:UseParallelOldGC. Please sign in to reply. Reply as... Cancel
Cosco SCJ 11 Years Ago Good article.I need to increase my PermGen parameter to 256m.Now, sometimes i have this error: "Attempt to allocate stack guard pages failed newsize" Could you please help me? thanks Please sign in to reply. Reply as... Cancel
Muhammad Umer Zubair 10 Years Ago Thanks for the very informative article. I have tried the settings with -Xmx 2048m, but apache does not startup. I have 8 gb ram and corei7 machine. Server starts up with 1048 memory settings. Please sign in to reply. Reply as... Cancel
(You) 9 Years Ago [...] 5 tips for proper Java Heap size. Young Generation. Liferay JVM Tuning. How to Monitor Java Garbage Collection. Liferay Tips: Liferay Performance Tuning. Tuning Tomcat Performance For Optimum Speed... [...] Read More Please sign in to reply. Reply as... Cancel
Vishal Panchal 7 Years Ago Excellent explanation, thanks for sharing - Vishal Please sign in to reply. Reply as... Cancel