Thanks Chris & others for your input, I am planning to do same now and may be we will use the property
*server.tomcat.basedir* But this may create another issue ,it will grow the size of the folder . Is this possible in the coming release tomcat/embedded tomcat give a feature to delete the basedir at the tomcat restart/start and recreate it? One more thing is unanswered after deleting the tomcat folder why first page clicked is throwing 500 error with ClassNotFoundException if its not accessed before deleting the tomcat folder? On Fri, Mar 22, 2024 at 7:01 PM Christopher Schultz < ch...@christopherschultz.net> wrote: > Subodh, > > On 3/22/24 01:36, Subodh Joshi wrote: > > Hi Chris > > > > Thanks for your response. > > > > So i added below properties in application.properties file > > > >> spring.mvc.cache-control.cache-allowed=false > >> > >> and then Deleted the /tmp/tomcat directory . So now when i restart the > > server A.jsp only fail with 500 error (ClassNotFoundException) as this is > > first page which i was trying to load, rest JSP pages working fine > without > > any issue . > > > > Why i am doing this exercise? > > In our some of the deployed linux environment many clients are > complaining > > about this issue , We tried to monitor who actually deleting these > > /tmp/tomcat folder but still we are not able to figure it out and we are > > not able to reproduce it . So i have to do reproduce it manually deleting > > the /tmp/tomcat directory. > > What if you don't use /tmp as your work directory location? /tmp is > supposed to be for actually temporary files. These files could live for > decades if you never changed your source .jsp files or re-deployed your > application. > > -chris > > > On Thu, Mar 21, 2024 at 7:24 PM Christopher Schultz < > > ch...@christopherschultz.net> wrote: > > > >> Subudh, > >> > >> On 3/21/24 07:32, Subodh Joshi wrote: > >>> Expert, > >>> > >>> Recently i came across a issue and i was getting no clue what was going > >> on > >>> wrong with the Application. > >>> > >>> So here is the issue , we were getting following issue in our web > >>> application(Springboot+Embedded Tomcat) which is deployed into Linux > >> machine > >>> > >>> java.lang.ClassNotFoundException: > >>>> org.apache.jsp.WEB_002dINF.jsp.ImportTab_jsp > >>>> at > >>>> java.base/java.net.URLClassLoader.findClass(URLClassLoader.java:445) > >>>> at > >>>> > org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:129) > >>>> at > >>>> org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:58) > >>>> at > >>>> > >> > org.apache.catalina.core.DefaultInstanceManager.newInstance(DefaultInstanceManager.java:151) > >>>> at > >>>> > >> > org.apache.jasper.servlet.JspServletWrapper.getServlet(JspServletWrapper.java:189) > >>>> at > >>>> > >> > org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:410) > >>>> at > >>>> > org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:380) > >>>> at > >>>> org.apache.jasper.servlet.JspServlet.service(JspServlet.java:328) > >>>> at > >> jakarta.servlet.http.HttpServlet.service(HttpServlet.java:658) > >>>> at > >>>> > >> > org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:205) > >>>> at > >>>> > >> > org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:149) > >>>> at > >>>> org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51) > >>>> at > >>>> > >> > org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:174) > >>>> at > >>>> > >> > org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:149) > >>>> at > >>>> > >> > org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:110) > >>>> at > >>>> > >> > org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:174) > >>>> at > >>>> > >> > org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:149) > >>>> at > >>>> > >> > org.springframework.web.filter.CompositeFilter$VirtualFilterChain.doFilter(CompositeFilter.java:108) > >>>> at > >>>> > >> > org.springframework.security.web.FilterChainProxy.lambda$doFilterInternal$3(FilterChainProxy.java:231) > >>>> at > >>>> > >> > org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:365) > >>>> at > >>>> > >> > org.springframework.security.web.access.intercept.AuthorizationFilter.doFilter(AuthorizationFilter.java:100) > >>>> at > >>>> > >> > org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:374) > >>>> at > >>>> > >> > org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:126) > >>>> at > >>>> > >> > org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:120) > >>>> at > >>>> > >> > org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:374) > >>>> at > >>>> > >> > org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:100) > >>>> at > >>>> > >> > org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:374) > >>>> at > >>>> > >> > org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:179) > >>>> at > >>>> > >> > org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:374) > >>>> at > >>>> > >> > org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:63) > >>>> at > >>>> > >> > org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:374) > >>>> at > >>>> > >> > com.comptel.catalog.support.filter.OperationClientRestFilter.doFilter(OperationClientRestFilter.java:86) > >>>> at > >>>> > >> > org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:374) > >>>> at > >>>> > >> > com.comptel.catalog.support.filter.JwtSecurityChainFilter.doFilter(JwtSecurityChainFilter.java:100) > >>>> at > >>>> > >> > org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:374) > >>>> > >>> > >>> but how to reproduce this issue we were not able to get any clue. > >>> > >>> But Recently i got to know how to reproduce this issue > >>> 1- Start the web-application. > >>> 2- Tomcat will create a directory under /tmp/tomcat.*/.././...... > >>> 3- Now access web-application through browser. > >>> 4- But dont access all JSP pages. > >>> 5- Suppose application have A,B,C,D.jsp pages . > >>> 6- User accesses A,B.jsp only > >>> 7- Now user or any cron job deleted /tmp/tomcat directory > >> > >> Don't do that. > >> > >>> 8- Now user click on C.jsp it is throwing above given exception. > >>> 9- Now click on D.jsp it will work fine as tomcat will create > /tmp/tomcat > >>> ..... directory again. > >>> 10. But C.jsp which was failed with 500 error will never come upto the > >> time > >>> tomcat will not start. > >>> > >>> Can someone please explain how tomcat works here and why it throws an > >>> exception and wont allow that jsp page to come up without restart? > >> > >> Tomcat is caching resources and does not expect another process to come > >> around and delete its files. I'm not sure exactly why the C.jsp/C.class > >> file ends up getting "stuck" while D.jsp/D.class does not. > >> > >> You vould try setting cachingAllowed="false" in your <Resources> element > >> in META-INF/context.xml (or embedded equivalent) to disable caching. > >> Performance will likely suffer, but perhaps it will reolve this issue. > >> > >> Why not just _stop deleting Tomcat's work directory_? > >> > >> -chris > >> > >> --------------------------------------------------------------------- > >> To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org > >> For additional commands, e-mail: users-h...@tomcat.apache.org > >> > >> > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org > For additional commands, e-mail: users-h...@tomcat.apache.org > > -- Subodh Chandra Joshi subodh1_josh...@yahoo.co.in http://www.trendsinnews.com
