When does Tomcat throw an OutOfMemory exception?

Greetings all, I would like someone to shed a bit of light on when exactly Tomcat throws an OutOfMemory exception. Is it when its physical memory usage (working set) reaches the maximum limit configured in the JVM startup parameters, or are other conditions that can cause this? I've noticed

Re: When does Tomcat throw an OutOfMemory exception?

hi, there are many occasions. 1. if there is no memory left (-Xmx) 2. if there is no perm gen space left (for example to many jsps) 3. if there is not enough space in the current heap and no time to enlarge the heap (xms xmx) 4. if a new thread couldn't be created 5-10 whatever the jvm vendor

RE: When does Tomcat throw an OutOfMemory exception?

Thanks for the clarification. The JVM doesn't indicate which of these conditions actually caused the exception, though, does it? -Original Message- From: Leon Rosenberg [mailto:[EMAIL PROTECTED] Sent: Sunday, November 30, 2008 3:55 PM To: Tomcat Users List Subject: Re: When does Tomcat

Re: Manager app language

Caldarale, Charles R wrote: From: André Warnier [mailto:[EMAIL PROTECTED] Subject: Re: Manager app language Personally, I don't see anything in there that looks like it is setting the global JVM user.language property. So what was the basis of your previous statement that the JSP is doing

Memory pool Survivor space

Hi. I am monitoring a Tomcat during startup, using jconsole. This Tomcat's JVM is started with the switches -Xms200M -Xmx200M, and it starts a rather heavy webapp that just about occupies Tomcat 100% during 5 minutes whenever I start it. (*) In the memory tab of jconsole, I observe that one

RE: When does Tomcat throw an OutOfMemory exception?

From: Karim Zaki [mailto:[EMAIL PROTECTED] Subject: RE: When does Tomcat throw an OutOfMemory exception? The JVM doesn't indicate which of these conditions actually caused the exception, though, does it? Depends on the JVM version and vendor. Newer ones from Sun are much better at

RE: Memory pool Survivor space

From: André Warnier [mailto:[EMAIL PROTECTED] Subject: Memory pool Survivor space This Tomcat's JVM is started with the switches -Xms200M -Xmx200M That's rather small for these days; I presume this is the toy machine you use to test with. In the memory tab of jconsole, I observe that one

Re: When does Tomcat throw an OutOfMemory exception?

Dear Chuck, To add to Leon's list: running out of file descriptors. Actually, in such situations you get 'java.io.IOException: Too many open files' or 'java.net.SocketException: Too many open files'. Not an OutOfMemory error. /nitpick -- Kees Jan http://java-monitor.com/forum/ [EMAIL

RE: When does Tomcat throw an OutOfMemory exception?

From: Kees Jan Koster [mailto:[EMAIL PROTECTED] Subject: Re: When does Tomcat throw an OutOfMemory exception? Actually, in such situations you get 'java.io.IOException: Too many open files' or 'java.net.SocketException: Too many open files'. Not an OutOfMemory error. Only if it's related to

Re: When does Tomcat throw an OutOfMemory exception?

Dear Chuck, Actually, in such situations you get 'java.io.IOException: Too many open files' or 'java.net.SocketException: Too many open files'. Not an OutOfMemory error. Only if it's related to an application-initiated action, such as opening a stream. If FD exhaustion is detected