504问题

如题, 请问504问题如何改善?

时常会有502或504问题的发生.  因为发生时都是在工作需要的时候,所以没有办法查看报错根据报错来解决问题. 服务器的机型配置和带宽远远超出系统最佳环境配置.  因此想请问一下如何改善该状况?

您好，为什么不能看报错呢，您可以到Tomcat上看看报什么错

Jay 发表于 2017-11-13 11:31
您好，为什么不能看报错呢，您可以到Tomcat上看看报什么错

十一月 02, 2017 5:46:22 下午 org.apache.catalina.core.ApplicationDispatcher invoke
严重: Servlet.service() for servlet jsp threw exception
java.sql.SQLException: Couldn't perform the operation getAutoCommit: You can't perform any operations on this connection. It has been automatically closed by Proxool for some reason (see logs).
        at org.logicalcobwebs.proxool.WrappedConnection.invoke(WrappedConnection.java:207)
        at org.logicalcobwebs.proxool.WrappedConnection.intercept(WrappedConnection.java:87)
        at $java.io.Serializable$$EnhancerByProxool$$4f9deed1.getAutoCommit(<generated>)
        at org.hibernate.jdbc.ConnectionManager.isAutoCommit(ConnectionManager.java:189)
        at org.hibernate.jdbc.JDBCContext.afterNontransactionalQuery(JDBCContext.java:239)
        at org.hibernate.impl.SessionImpl.afterOperation(SessionImpl.java:417)
        at org.hibernate.impl.SessionImpl.get(SessionImpl.java:820)
        at org.hibernate.impl.SessionImpl.get(SessionImpl.java:808)
        at cn.myapps.base.dao.HibernateBaseDAO.find(HibernateBaseDAO.java:588)
        at cn.myapps.base.ejb.AbstractDesignTimeProcessBean.doView(AbstractDesignTimeProcessBean.java:313)
        at cn.myapps.core.style.repository.ejb.StyleRepositoryProcessBean.doView(StyleRepositoryProcessBean.java:113)
        at cn.myapps.core.style.repository.ejb.StyleRepositoryProcessBean$$EnhancerByCGLIB$$f42a9b70.CGLIB$doView$1(<generated>)

天闻数媒 发表于 2017-11-13 11:42
十一月 02, 2017 5:46:22 下午 org.apache.catalina.core.ApplicationDispatcher invoke
严重: Servlet. ...

第一个是2号的 ,这是今天重启的之后的
十一月 13, 2017 9:56:14 上午 org.apache.catalina.core.ApplicationDispatcher invoke
严重: Servlet.service() for servlet jsp threw exception
java.lang.OutOfMemoryError: Java heap space
        at java.util.Arrays.copyOfRange(Arrays.java:2694)
        at java.lang.String.<init>(String.java:203)
        at org.apache.jasper.runtime.BodyContentImpl.getString(BodyContentImpl.java:546)
        at cn.myapps.base.web.tag.MultiLanguageTag.doEndTag(MultiLanguageTag.java:46)
        at org.apache.jsp.portal.H5.dynaform.work.list_jsp._jspx_meth_o_005fMultiLanguage_005f0(list_jsp.java:188)
        at org.apache.jsp.portal.H5.dynaform.work.list_jsp._jspService(list_jsp.java:103)
        at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:723)
        at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:388)
        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:723)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:96)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
        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.processRequest(ApplicationDispatcher.java:436)
        at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:374)
        at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:302)
        at org.apache.struts2.dispatcher.ServletDispatcherResult.doExecute(ServletDispatcherResult.java:164)
        at cn.myapps.base.web.ServletResult.OBPMServletDispatcherResult.doExecute(OBPMServletDispatcherResult.java:34)
        at org.apache.struts2.dispatcher.StrutsResultSupport.execute(StrutsResultSupport.java:191)
        at com.opensymphony.xwork2.DefaultActionInvocation.executeResult(DefaultActionInvocation.java:372)
        at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:276)
        at com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:229)
        at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)
        at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:245)
        at org.apache.struts2.impl.StrutsActionProxy.execute(StrutsActionProxy.java:54)
        at org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:575)
        at org.apache.struts2.dispatcher.ng.ExecuteOperations.executeAction(ExecuteOperations.java:81)

这是十月27日的一段报错信息
严重: Servlet.service() for servlet jsp threw exception
java.lang.OutOfMemoryError: Java heap space

十月 27, 2017 12:37:39 下午 org.apache.catalina.core.ApplicationDispatcher invoke
严重: Servlet.service() for servlet jsp threw exception
java.lang.OutOfMemoryError: Java heap space

十月 27, 2017 12:51:49 下午 org.apache.catalina.core.ApplicationDispatcher invoke
严重: Servlet.service() for servlet jsp threw exception
java.lang.OutOfMemoryError: Java heap space

十月 27, 2017 12:52:26 下午 org.apache.catalina.core.ApplicationDispatcher invoke
严重: Servlet.service() for servlet jsp threw exception
java.lang.OutOfMemoryError: Java heap space

十月 27, 2017 12:56:25 下午 org.apache.catalina.core.ApplicationDispatcher invoke
严重: Servlet.service() for servlet jsp threw exception
java.lang.OutOfMemoryError: Java heap space

十月 27, 2017 12:56:32 下午 org.apache.catalina.core.ApplicationDispatcher invoke
严重: Servlet.service() for servlet jsp threw exception
java.lang.OutOfMemoryError: Java heap space

十月 27, 2017 12:57:17 下午 org.apache.catalina.core.ApplicationDispatcher invoke
严重: Servlet.service() for servlet jsp threw exception
java.lang.OutOfMemoryError: Java heap space

十月 27, 2017 12:57:20 下午 org.apache.catalina.core.ApplicationDispatcher invoke
严重: Servlet.service() for servlet jsp threw exception
java.lang.OutOfMemoryError: Java heap space

十月 27, 2017 12:57:39 下午 org.apache.catalina.core.ApplicationDispatcher invoke
严重: Servlet.service() for servlet jsp threw exception
java.lang.OutOfMemoryError: Java heap space

十月 27, 2017 12:59:17 下午 org.apache.catalina.core.ApplicationDispatcher invoke
严重: Servlet.service() for servlet jsp threw exception
java.lang.OutOfMemoryError: Java heap space

十月 27, 2017 1:02:05 下午 org.apache.catalina.core.ApplicationDispatcher invoke
严重: Servlet.service() for servlet jsp threw exception
java.lang.OutOfMemoryError: Java heap space
十月 27, 2017 1:12:04 下午 org.apache.catalina.core.StandardHostValve custom
严重: Exception Processing ErrorPage[errorCode=500, location=/common/errorpage/500.html]
javax.servlet.ServletException: Servlet execution threw an exception
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:313)
        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.processRequest(ApplicationDispatcher.java:438)
        at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:374)
        at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:302)
        at org.apache.catalina.core.StandardHostValve.custom(StandardHostValve.java:421)
        at org.apache.catalina.core.StandardHostValve.status(StandardHostValve.java:342)
        at org.apache.catalina.core.StandardHostValve.throwable(StandardHostValve.java:286)
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:141)
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
        at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:861)
        at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:606)
        at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
        at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.OutOfMemoryError: Java heap space

您好，您的第一个报错是连接池初始容量太小了，把它设置大一点就好了。第二个报错是您的Tomcat的内存溢出了，您可以参考一下这个帖子http://www.teemlink.com/bbs/foru ... ht=OutOfMemoryError

Jay 发表于 2017-11-13 12:08
您好，您的第一个报错是连接池初始容量太小了，把它设置大一点就好了。第二个报错是您的Tomcat的内存溢出了 ...

好的. 我试试看. 谢谢.

谢谢帮助.可以结贴