Thanks I will follow that On Tue, Aug 17, 2010 at 6:12 PM, Pid <p...@pidster.com> wrote:
> On 17/08/2010 10:48, sasidhar prabhakar wrote: > > Tomcat hangs ever few hours. > > *Exact* Tomcat, JVM and OS versions? > > > In server.xml maxThreads are 300. > > > > In thread dump I observed every thread doing the same thing. > > In my code I sends sms to users by using HttpURLConnection. > > I am using this code for months I didn't get the problem earlier. > > For few days I am getting this problem consistently. Whenever tomcat > hangs I > > takes the thread dump, > > every time it shows the same results. > > > > Here is my one of threads dump. this is common for all remaining threads. > > > > Somebody guide me to solve this problem. I am trying but unable to do > this > > If each request processor thread is dependent on an inline request to an > external resource, and that resource is unavailable or otherwise slow to > respond then your app will inevitably run out of threads. > > You should consider offloading the request to a thread pool (see the > Java Concurrency API in recent JVMs) with appropriate timeouts. > > > p > > > "http-80-300" daemon prio=1 tid=0x76890ef0 nid=0x6bb6 runnable > > [0x6def0000..0x6def0db0] > > at java.net.SocketInputStream.socketRead0(Native Method) > > at java.net.SocketInputStream.read(SocketInputStream.java:129) > > at java.io.BufferedInputStream.fill(BufferedInputStream.java:218) > > at java.io.BufferedInputStream.read1(BufferedInputStream.java:256) > > at java.io.BufferedInputStream.read(BufferedInputStream.java:313) > > - locked <0xb1332658> (a java.io.BufferedInputStream) > > at sun.net.www.http.HttpClient.parseHTTPHeader(HttpClient.java:681) > > at sun.net.www.http.HttpClient.parseHTTP(HttpClient.java:626) > > at > > > sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:983) > > - locked <0xb1332690> (a sun.net.www.protocol.http.HttpURLConnection) > > at SendSms.sendToSingleRecipientNoNpri(SendSms.java:89) > > at CreateAccountAction.execute(CreateAccountAction.java:86) > > at > > > org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:425) > > at > > > org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:228) > > at > > org.apache.struts.action.ActionServlet.process(ActionServlet.java:1913) > > at > org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:462) > > at javax.servlet.http.HttpServlet.service(HttpServlet.java:637) > > 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 > com.amulyam.servlet.RedirectFilter.doFilter(RedirectFilter.java:56) > > 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.StandardWrapperValve.invoke(StandardWrapperValve.java:233) > > at > > > org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191) > > at > > > org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:433) > > at > > > org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128) > > at > > > org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) > > 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:849) > > at > > > org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583) > > at > > org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:454) > > at java.lang.Thread.run(Thread.java:595) > > > >
