RE: Tomcat web application stops automatically
These application are running inside tomcat because I was under the impression that Tomcat is an application server and I need tomcat to run Java dynamic web applications. -Original Message- From: André Warnier [mailto:a...@ice-sa.com] Sent: 15 April 2013 11:14 To: Tomcat Users List Subject: Re: Tomcat web application stops automatically Rishad Ali wrote: I have a dedicated server running CentOS 5.9, Apache-Tomcat 5.5.36. I have written a JAVA web applications which runs every minute to collect the data from multiple sensors. I am using ScheduledExecutorService to execute the threads. (one thread for each sensor every minute and there can be more than hundred sensors) The flow of the thread is 1.Collect sensor information from the database. 2.Sends the command to the instrument to collect data. 3.Update the database with the data values. There is another application that checks the database every minute and send the alerts to the users (if necessary). I have monitored the application using jvisualVM, I cant find any memory leak. for every thread. The applications work fine but after some time(24 Hour - 48 Hours) the applications stop working. I can't find out what the problem could be, is it server configuration problem, too many threads or what? This might not be a Tomcat server problem but this could be Does anyone have any idea what might be going wrong or is there anyone who has done think kind of work? Please help, Thanks [.. snip .. ] This may be a naive question, but from your description above it is not clear if any of these applications have anything to do with Tomcat, or with a webserver environment. Why would it/they be running inside Tomcat ? - 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
RE: Tomcat web application stops automatically
I think I mentioned this in the question that I am using ScheduledExecutorService to start threads every minute. This is not the application running every minute, these are the threads I create. And as I said It works fine for some time then it stops. Yes I checked the log but there is no sign of stopping application or nothing about Too many database connections. -Original Message- From: Ralph Plawetzki [mailto:ra...@purejava.org] Sent: 15 April 2013 13:11 To: Tomcat Users List Subject: Re: Tomcat web application stops automatically Am 15.04.2013 11:31, schrieb Rishad Ali: I have a dedicated server running CentOS 5.9, Apache-Tomcat 5.5.36. I have written a JAVA web applications which runs every minute to collect the data from multiple sensors. I am using ScheduledExecutorService to execute the threads. (one thread for each sensor every minute and there can be more than hundred sensors) The flow of the thread is A web application can be deployed to tomcat and when it is deployed it can be running or not. It can't run every minute. snip/ thread. The applications work fine but after some time(24 Hour - 48 Hours) the applications stop working. I can't find out what the problem What does that mean? Did you take a look at the tomcat logfiles? Ralph - 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
How to start a continuous java application in tomcat
Hi, The scenario is: I have a java application which collects some data from sensors and stores in the database. This java application has to run continuously. On the other hand I have a web application which I am running on tomcat which collects the data from database and display it on the web. Database is same for both applications. I don't mind whether the application runs inside tomcat or outside tomcat. I've tried to make a jar file of the java application and created a simple web application which uses some classes of the jar file. But it is not working. Can anyone please tell me how do I do this. I am sure there should be an easy way to do that. Thank you. Regards.
RE: How to start a continuous java application in tomcat
Hi Hassan, I don't want to run mash them. I just want to run the java application. On the local server it is working fine but when I try it in the dedicated linux server it does not work. Thank you -Original Message- From: Hassan Schroeder [mailto:hassan.schroe...@gmail.com] Sent: 14 May 2012 15:30 To: Tomcat Users List Subject: Re: How to start a continuous java application in tomcat On Mon, May 14, 2012 at 6:46 AM, Rishad Ali rishad@turnkey-instruments.com wrote: I have a java application which collects some data from sensors and stores in the database. This java application has to run continuously. On the other hand I have a web application which I am running on tomcat which collects the data from database and display it on the web. They sound like 2 independent applications then, which should *run* independently. The fact that they're using the same DB, or sharing some classes, is not really a good enough reason to mash them together, IMO. -- Hassan Schroeder hassan.schroe...@gmail.com http://about.me/hassanschroeder twitter: @hassan - 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
