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From Hari Mailvaganam <hari...@gmail.com>
Subject Re: tomcat hangs
Date Fri, 04 Feb 2005 17:40:39 GMT
Have you analyze the memory usage on the box? 


On Fri, 04 Feb 2005 14:35:37 +0530, Dhana Sekar Sugunan
<dhanasu@hotmail.com> wrote:
> Hi,
> 
> I am not sure i am posting this in the correct area. Please bear and advice.
> 
> My application needs to run a thread contiuously for every 1 hr. I have made
> the coding in servlet as
> package invservlet;
> import javax.servlet.*;
> import javax.servlet.http.*;
> import java.io.IOException;
> import java.util.Timer;
> import java.util.TimerTask;
> import java.util.Date;
> import java.util.Calendar;
> import sample.Reminder;
> public class SampleReminder extends HttpServlet{
> Timer timer;
> Date date=new Date();
> Calendar calc=Calendar.getInstance();
> public void init(){
> timer = new Timer();
> timer.schedule(new Reminder(),calc.getTime(),1*1000*60*60);
> }
> public void doService(HttpServletRequest request,HttpServletResponse
> response) throws ServletException,IOException{
> }
> public void destroy(){
> timer.cancel();
> super.destroy();
> }
> }
> 
> and the execution file is
> 
> package sample;
> import java.util.TimerTask;
> import java.util.Date;
> import box.util.SendMail;
> 
> public class Reminder extends TimerTask{
> SendMail sendMail=new SendMail();
> public void run() {
> taskBody();
> }
> public void taskBody()
> {
> 
> try{
> sendMail.SendMail("192.168.0.33","mail@abc.com","mail1@abc.com","","","Test
> log mail","This is a test mail for every 1 hour"+new Date());
> }catch(Exception e){System.out.println("ERROR IN Remainder");}
> 
> }
> }
> 
> BUT EVERY 2 - 3 DAYS I AM GETTING MY TOMCAT HANGING. I THINK THE PROBLEM IS
> IN THE THREAD. PLEASE ADVICE. THANKS.
> 
> Sorry, forget to add some more points which may help for analysation.
> My application will fetch more than 1000 records for single transaction.
> And also some times in will be transferred (sendRedirect) to another page
> with nearly 20 fields of data.
> 
> Will this also create problem?
> 
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