Re: [jbpm-dev] Task Service -- Too many open files

Mauricio, thank you for the really fast response on this… after your suggestion, I came across this … http://mina.apache.org/faq.html#FAQ-Myserverfailswithjava.net.SocketExcep... but it appears that the connections on my system are not being closed at all, not sure why they aren't timing out. Unless I shutdown Tomcat and restart it, the file handlers do not get released. I could change my limit to something else, but I feel this would just delay the problem by a few seconds or minutes at the best. Any other suggestions? regards, * * On Nov 9, 2011, at 10:32 AM, Mauricio Salatino wrote: Yes, I saw that problem in a linux machine only. It's about the amount sockets that the system is able to open. I remember looking at the Mina documentation to see how to fix it, but something should be wrong there.. because it's not supposed to open a huge amount of sockets for working. Cheers On Wed, Nov 9, 2011 at 12:10 PM, Cracel, Rogerio <rcracel(a)cghtech.com&gt;wrote: > I have been experiencing constant 'Too many open files' exceptions on the > TaskClient during connect() > > For every operation, I connect and disconnect as such… > > TaskClient client = new TaskClient(new MinaTaskClientConnector("client 1", > newMinaTaskClientHandler(SystemEventListenerFactory.getSystemEventListener()))); > > …. invoke operation on the task server (complete, release, claim, …) > > client.disconnect(); > > The exception only manifests itself when attempting to connect to the > task client, the remaining of the application (database connections, > servlet requests, …) complete successfully. > > Any insight on this would be very much appreciated. > > Thank you. > > ---- > > > java.io.IOException: Too many open files > sun.nio.ch.IOUtil.initPipe(Native Method) > sun.nio.ch.EPollSelectorImpl.<init>(EPollSelectorImpl.java:49) > sun.nio.ch.EPollSelectorProvider.openSelector(EPollSelectorProvider.java:18) > java.nio.channels.Selector.open(Selector.java:209) > org.apache.mina.transport.socket.nio.NioProcessor.<init>(NioProcessor.java:56) > sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) > sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39) > sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27) > java.lang.reflect.Constructor.newInstance(Constructor.java:513) > org.apache.mina.core.service.SimpleIoProcessorPool.<init>(SimpleIoProcessorPool.java:156) > org.apache.mina.core.service.SimpleIoProcessorPool.<init>(SimpleIoProcessorPool.java:104) > org.apache.mina.core.polling.AbstractPollingIoConnector.<init>(AbstractPollingIoConnector.java:93) > org.apache.mina.transport.socket.nio.NioSocketConnector.<init>(NioSocketConnector.java:55) > org.jbpm.task.service.mina.MinaTaskClientConnector.connect(MinaTaskClientConnector.java:60) > org.jbpm.task.service.TaskClient.connect(TaskClient.java:745) > gov.faa.aim.utils.TaskUtils.connect(TaskUtils.java:52) > gov.faa.aim.utils.TaskUtils.getTasksForUser(TaskUtils.java:107) > gov.faa.aim.web.controllers.TaskViewController.listTasks(TaskViewController.java:179) > sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) > sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) > java.lang.reflect.Method.invoke(Method.java:597) > org.springframework.web.bind.annotation.support.HandlerMethodInvoker.invokeHandlerMethod(HandlerMethodInvoker.java:176) > org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.invokeHandlerMethod(AnnotationMethodHandlerAdapter.java:436) > org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.handle(AnnotationMethodHandlerAdapter.java:424) > org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:790) > org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:719) > org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:669) > org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:574) > javax.servlet.http.HttpServlet.service(HttpServlet.java:621) > javax.servlet.http.HttpServlet.service(HttpServlet.java:722) > org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:369) > org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:109) > org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:83) > org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:381) > org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:97) > org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:381) > org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:100) > org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:381) > org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:78) > org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:381) > org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:54) > org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:381) > org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:35) > org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:381) > org.springframework.security.web.authentication.www.BasicAuthenticationFilter.doFilter(BasicAuthenticationFilter.java:177) > org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:381) > org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:187) > org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:381) > org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:105) > org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:381) > org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:79) > org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:381) > org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:168) > org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:237) > org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:167) > > > > _______________________________________________ > jbpm-dev mailing list > jbpm-dev(a)lists.jboss.org > https://lists.jboss.org/mailman/listinfo/jbpm-dev > > -- - CTO @ http://www.plugtree.com - MyJourney @ http://salaboy.wordpress.com - Co-Founder @ http://www.jugargentina.org - Co-Founder @ http://www.jbug.com.ar - Salatino "Salaboy" Mauricio -