Re: tomcat 5.5, jdk1.5 on user mode debian stable hangs after a few days
Just to let people know that my application has been running happily for nearly a week now. I actually replaced the JDK1.5 with the blackdown 1.4.2 and installed the compatibility extensions for tomcat. since then its been fine. martin - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: tomcat 5.5, jdk1.5 on user mode debian stable hangs after a few days
Good for you! Glad it all worked out. On Mon, 2005-08-08 at 02:25 +0100, Martin Wood wrote: Just to let people know that my application has been running happily for nearly a week now. I actually replaced the JDK1.5 with the blackdown 1.4.2 and installed the compatibility extensions for tomcat. since then its been fine. martin - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
tomcat 5.5, jdk1.5 on user mode debian stable hangs after a few days
Hello, I've searched far and wide for a definitive answer to this problem, but have found nothing that relates to my situation. I did find a few similar issues, but 1. I have no System.exit in my code 2. I am not using the root context and still after a few days tomcat stops responding. The problem also doesnt go away after i stop and re-start tomcat. And occasionally it wont stop with ./bin/shutdown.sh so i have to kill -9 the first process to stop it. when it is running, the CPU usage runs at over 90% and the memory usage goes up to 50% or so. It doesnt even respond when i telnet to localhost 8080. does anyone know a viable fix for this problem ? thanks, martin - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: tomcat 5.5, jdk1.5 on user mode debian stable hangs after a few days
Hi, Hanging, memory up 50%, sounds very much like an OutOfMemoryException to me. I know from experience that Tomcat can hang with no memory and not log to stdout either (although most of the time it does). Have you profiled your application under a load test? Cheers, Allistair. -Original Message- From: MDK [mailto:[EMAIL PROTECTED] Sent: 02 August 2005 10:23 To: tomcat-user@jakarta.apache.org Subject: tomcat 5.5, jdk1.5 on user mode debian stable hangs after a few days Hello, I've searched far and wide for a definitive answer to this problem, but have found nothing that relates to my situation. I did find a few similar issues, but 1. I have no System.exit in my code 2. I am not using the root context and still after a few days tomcat stops responding. The problem also doesnt go away after i stop and re-start tomcat. And occasionally it wont stop with ./bin/shutdown.sh so i have to kill -9 the first process to stop it. when it is running, the CPU usage runs at over 90% and the memory usage goes up to 50% or so. It doesnt even respond when i telnet to localhost 8080. does anyone know a viable fix for this problem ? thanks, martin - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] FONT SIZE=1 FACE=VERDANA,ARIAL COLOR=BLUE --- QAS Ltd. Registered in England: No 2582055 Registered in Australia: No 082 851 474 --- /FONT - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: tomcat 5.5, jdk1.5 on user mode debian stable hangs after a few days
no, the odd thing is, it wasnt even being used (and its a very simple application, of course, thats a relative term) i installed the app, tested it once and logged out. I came back to it a few days later and the whole thing is hanging. If you can recommed any tools i can use to detect what is happening that would be much appreciated the app itself uses spring, openamf (an open source flash remoting connector) with some jdbc (mysql) so i guess that any one of these (and my code) could be the culprit. I'll look into each of these individually and see if they could be causing the problem. thanks. martin Allistair Crossley wrote: Hi, Hanging, memory up 50%, sounds very much like an OutOfMemoryException to me. I know from experience that Tomcat can hang with no memory and not log to stdout either (although most of the time it does). Have you profiled your application under a load test? Cheers, Allistair. -Original Message- From: MDK [mailto:[EMAIL PROTECTED] Sent: 02 August 2005 10:23 To: tomcat-user@jakarta.apache.org Subject: tomcat 5.5, jdk1.5 on user mode debian stable hangs after a few days Hello, I've searched far and wide for a definitive answer to this problem, but have found nothing that relates to my situation. I did find a few similar issues, but 1. I have no System.exit in my code 2. I am not using the root context and still after a few days tomcat stops responding. The problem also doesnt go away after i stop and re-start tomcat. And occasionally it wont stop with ./bin/shutdown.sh so i have to kill -9 the first process to stop it. when it is running, the CPU usage runs at over 90% and the memory usage goes up to 50% or so. It doesnt even respond when i telnet to localhost 8080. does anyone know a viable fix for this problem ? thanks, martin - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] FONT SIZE=1 FACE=VERDANA,ARIAL COLOR=BLUE --- QAS Ltd. Registered in England: No 2582055 Registered in Australia: No 082 851 474 --- /FONT - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: tomcat 5.5, jdk1.5 on user mode debian stable hangs after a few days
Hi, You can get JProbe freeware for profiling and use JMeter to issue load to your web application. Does the same phenoneneneneom occur with a vanilla Tomcat 5.5 install with included webapps like jsp-examples. First figure out if it is your webapp that's causing it. Allistair. -Original Message- From: MDK [mailto:[EMAIL PROTECTED] Sent: 02 August 2005 12:29 To: Tomcat Users List Subject: Re: tomcat 5.5, jdk1.5 on user mode debian stable hangs after a few days no, the odd thing is, it wasnt even being used (and its a very simple application, of course, thats a relative term) i installed the app, tested it once and logged out. I came back to it a few days later and the whole thing is hanging. If you can recommed any tools i can use to detect what is happening that would be much appreciated the app itself uses spring, openamf (an open source flash remoting connector) with some jdbc (mysql) so i guess that any one of these (and my code) could be the culprit. I'll look into each of these individually and see if they could be causing the problem. thanks. martin Allistair Crossley wrote: Hi, Hanging, memory up 50%, sounds very much like an OutOfMemoryException to me. I know from experience that Tomcat can hang with no memory and not log to stdout either (although most of the time it does). Have you profiled your application under a load test? Cheers, Allistair. -Original Message- From: MDK [mailto:[EMAIL PROTECTED] Sent: 02 August 2005 10:23 To: tomcat-user@jakarta.apache.org Subject: tomcat 5.5, jdk1.5 on user mode debian stable hangs after a few days Hello, I've searched far and wide for a definitive answer to this problem, but have found nothing that relates to my situation. I did find a few similar issues, but 1. I have no System.exit in my code 2. I am not using the root context and still after a few days tomcat stops responding. The problem also doesnt go away after i stop and re-start tomcat. And occasionally it wont stop with ./bin/shutdown.sh so i have to kill -9 the first process to stop it. when it is running, the CPU usage runs at over 90% and the memory usage goes up to 50% or so. It doesnt even respond when i telnet to localhost 8080. does anyone know a viable fix for this problem ? thanks, martin - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] FONT SIZE=1 FACE=VERDANA,ARIAL COLOR=BLUE --- QAS Ltd. Registered in England: No 2582055 Registered in Australia: No 082 851 474 --- /FONT - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: tomcat 5.5, jdk1.5 on user mode debian stable hangs after a few days
On 8/2/05, MDK [EMAIL PROTECTED] wrote: no, the odd thing is, it wasnt even being used (and its a very simple application, of course, thats a relative term) i installed the app, tested it once and logged out. I came back to it a few days later and the whole thing is hanging. If you can recommed any tools i can use to detect what is happening that would be much appreciated the app itself uses spring, openamf (an open source flash remoting connector) with some jdbc (mysql) so i guess that any one of these (and my code) could be the culprit. I'll look into each of these individually and see if they could be causing the problem. When something like Tomcat is hung, the first thing you should do is get a thread dump, which may give very useful information. -- x Rémy Maucherat Developer Consultant JBoss Group (Europe) SàRL x - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
