On 24/04/2019 21:46, Simon Funnell wrote:
> Hi,
>
> I am looking at running a small ecommerce site with about 40-80 users at a
> time on a virtual private server with 4 cores and 1GB of memory, I am
> planning on running apache james, mysql and tomcat on this instance. My
> question is will 256MB
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Nagendra,
On 4/14/17 4:36 AM, nagendra.r...@wipro.com wrote:
> Problem statement: Memory usage increased form 500MB to 4 GB after
changing the tomcat process from 32 bit to 64 bit execution
Any other changes? For example, changes to the heap config
On 14.04.2017 10:36, nagendra.r...@wipro.com wrote:
Hi All,
Problem statement: Memory usage increased form 500MB to 4 GB after changing the
tomcat process from 32 bit to 64 bit execution
As tomcat memory has increased it is impacting available memory for other
applications on server
o Is thi
Hi
java on UNIX by default starts in 32 bit mode
to run java in 64 bit mode , java -d64 is specified
so for TOMCAT on catalina.sh
HOW TO for JAVA_HOME in 64 bit ?
with regards
Karthik
Mark Thomas wrote:
karthikn wrote:
Hi
Please need this Information
Memory Usage Differ fo
karthikn wrote:
Hi
Please need this Information
Memory Usage Differ for same TOMCAT5.5.23 on 32 / 64 bit Java Version ?
None.
Mark
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> From: Billy Ng [mailto:[EMAIL PROTECTED]
> Subject: Re: Memory usage in Tomcat 6
>
> Changing the -Xmsm and -Xmxm in the tomcatw.exe
That's tomcat6w.exe, not tomcatw.exe.
> If you still have problem, there must be some huge
> objects created from time to time.
It ca
9 out of 10 are the heap size problem. Changing the -Xmsm and -Xmxm
in the tomcatw.exe if you are using Windows. On the 32-bit Windows, you can
only allocate 1.2 GB max. If you still have problem, check all the static
vars to see any objects are growing forever. If you still have problem,
t
> From: Tuan Quan [mailto:[EMAIL PROTECTED]
> Subject: Memory usage in Tomcat 6
>
> Hi all, how do I adjust Memory allocation Tomcat 6, running
> as service in Windows?
Use the tomcat6w.exe program in Tomcat's bin directory.
Read the FAQ for memory usage information:
http://wiki.apache.org/tomcat
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
> Subject: memory usage of specific webapp with jmx
>
> I hope that I can also see the size of the web application
> without writing Java code.
Nope, and probably not even by writing Java code.
> I think so because web application classes are
> From: David Delbecq [mailto:[EMAIL PROTECTED]
> Subject: Re: memory usage increases on application stop
>
> Note that the PermSize is taken from the heap,
> so it should be lower than max heap size.
Not true in a HotSpot JVM; the heap and PermGen settings are
independent. Th
En l'instant précis du 11/01/08 09:34, Morten Matras s'exprimait en ces
termes:
Case:
I've deployed an application on a Tomcat 6.0 (current release). The
application is a Hibernate / Stripes application.
Almost no memory is allocated due to the deployed application.
Setting:
-Xmx64m -XX:Ma
> From: Jordi Prats [mailto:[EMAIL PROTECTED]
> Subject: memory usage
>
> There's any way to identify witch application and witch class
> is getting to many memory?
Read the FAQ:
http://wiki.apache.org/tomcat/FAQ/Memory
> How can I get some statistics about tomcat's memory usage?
The same way
> From: Christoph Sperle [mailto:[EMAIL PROTECTED]
> Subject: RE: Memory usage problem
>
> Do you have a hint to restrict/reduce the overall process
> memory tomcat uses.
1) Eliminate unnecessary items in server.xml (e.g., unused connectors).
2) Reduce the number of threads
strict/reduce the overall process memory tomcat
uses.
Thanks
Christoph
-Original Message-
From: Caldarale, Charles R [mailto:[EMAIL PROTECTED]
Sent: Mittwoch, 19. Dezember 2007 15:42
To: Tomcat Users List
Subject: RE: Memory usage problem
> From: Christoph Sperle [mailto:[EMAIL PROTECTED
> From: Christoph Sperle [mailto:[EMAIL PROTECTED]
> Subject: Memory usage problem
>
> As you can see, tomcat uses 138m, even though, it was start
> up with 64m restriction (-Xmx64m).
You're confusing heap size (-Xmx) with total process space. The total
process space includes many other things
Thank you Chuck and Chris for your help and advice. I will definitely be
reading your refs Chris
Regards
Peter
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Peter,
> 1. Does each tomcat instance use a separate 2 GB of memory, ie the 3
> instance use 6 GB between them ?
Each instance gets a separate, 2GB heap space.
> 2. or do they potentially share they same memory?
Since Java 1.5, "shared archive" cap
> From: Peter Sparkes [mailto:[EMAIL PROTECTED]
> Subject: Re: Memory usage with multiple instances of tomcat
>
> The commands -Xms3g -Xmx3g will set the min/max heap to
> 3 GB, please how do I set the RAM for each instance of
> Tomcat5.5 to 2 GB
You can't set the amount
Thanks Chuck,
I am using a 64-bit versions of the OS and JVM and I was confusing
virtual memory with RAM.
I have 8 GB of RAM and a 80 GB disc.
The commands -Xms3g -Xmx3g will set the min/max heap to 3 GB,please how
do I set the RAM for each instance of Tomcat5.5 to 2 GB
Regards
Peter
From
> From: Peter Sparkes [mailto:[EMAIL PROTECTED]
> Subject: Memory usage with multiple instances of tomcat
>
> 1. Does each tomcat instance use a separate 2 GB of memory, ie the 3
> instance use 6 GB between them ?
> 2. or do they potentially share they same memory?
Don't confuse virtual memory
Thanks Adrian
Regards
Peter
You'll need to allocate 2GB to each Tomcat instance. As long as you
use the standard Tomcat startup scripts each Tomcat instance will run
in a separate JVM (you'd have to be pretty deliberate about making it
run any other way).
Regards,
Adrian Sutton
http://www.
You'll need to allocate 2GB to each Tomcat instance. As long as you
use the standard Tomcat startup scripts each Tomcat instance will run
in a separate JVM (you'd have to be pretty deliberate about making it
run any other way).
Regards,
Adrian Sutton
http://www.symphonious.net
On 04/08/
s not advisable.
On 11/22/06, Caldarale, Charles R <[EMAIL PROTECTED]> wrote:
> From: Daniel L. Gross [mailto:[EMAIL PROTECTED]
> Subject: Re: Memory Usage
>
> I have tried various times in the tomcat configuration
> file, but nothing seems to matter.
This isn't a Tomcat
> From: Daniel L. Gross [mailto:[EMAIL PROTECTED]
> Subject: Re: Memory Usage
>
> I have tried various times in the tomcat configuration
> file, but nothing seems to matter.
This isn't a Tomcat configuration value - it's for the specific JDBC
driver that your app is us
In MySql the timeout is 10 seconds. I have tried various times in the
tomcat configuration file, but nothing seems to matter.
-- Dan
Caldarale, Charles R wrote:
From: Daniel L. Gross [mailto:[EMAIL PROTECTED]
Subject: Re: Memory Usage
The tomcat start/stop manager has a dump threads
> From: Daniel L. Gross [mailto:[EMAIL PROTECTED]
> Subject: Re: Memory Usage
>
> The tomcat start/stop manager has a dump threads option,
> it doesn't seem to do anything when I click it.
Start Tomcat using catalina run, and then do whatever your OS needs to
send an inte
$ControlRunnable.run()
I think we have found the problem. Every time I make a connection, it
leaves one of these threads hanging. Now whats the solution? That's
the $50. question.
Thanks, Dan
Caldarale, Charles R wrote:
From: Daniel L. Gross [mailto:[EMAIL PROTECTED]
Subject: Re: M
DATABASE_PASSWORD);
System.out.println("Connection made"); //debug
}
Caldarale, Charles R wrote:
From: Daniel L. Gross [mailto:[EMAIL PROTECTED] Subject: Re:
Memory Usage
What appears to be happening is that every time I execute my app,
when it closes, Tomcat leaves a
> From: Daniel L. Gross [mailto:[EMAIL PROTECTED]
> Subject: Re: Memory Usage
>
> I looked at the profiler and it appears that there are many timer
> threads left hanging.
What do you mean by "timer threads"? What does a thread dump show about
them?
- Chuck
THIS
t; +
DATABASE_USERNAME + "&password=" +
DATABASE_PASSWORD);
System.out.println("Connection made"); //debug
}
Caldarale, Charles R wrote:
From: Daniel L. Gross [mailto:[EMAIL PROTECTED]
Subject: Re: Memor
See, tomcat doesn't create a thread per request. It uses one from the pool
and after doing its job the thread returns to the pool. What might be
happening in your case is that those threads are not going back to the pool
after processing the request. So you will need to find out where those
thread
> From: Daniel L. Gross [mailto:[EMAIL PROTECTED]
> Subject: Re: Memory Usage
>
> What appears to be happening is that every time I
> execute my app, when it closes, Tomcat leaves an
> inactive thread hanging.
I seriously doubt that Tomcat is doing this - much more likel
> From: Daniel L. Gross [mailto:[EMAIL PROTECTED]
> Subject: Re: Memory Usage
>
> I have run the lamda probe on the software, but it
> didn't show anything useful.
It's not a profiler, and was never intended to be.
> Where do I turn on the -verbose:gc? In the tom
> From: Daniel L. Gross [mailto:[EMAIL PROTECTED]
> Subject: Memory Usage
>
> I made a simple servlet that just opens a connection to my
> MYSQL database and then closes it and does nothing else.
> When I look at the windows task manager, the memory usage
> of Tomcat jumps each time I run the
Is there a way to force Tomcat 5.5 to run a garbage collection?
Thanks, Dan
Caldarale, Charles R wrote:
>>From: Daniel L. Gross [mailto:[EMAIL PROTECTED]
>>Subject: Re: Memory Usage
>>
>>I have run the lamda probe on the software, but it
>>didn't show any
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Dan,
Daniel L. Gross wrote:
> It appears to be running garbage collection, but it doesn't recover all
> the memory, so as we make and break connections to the database, the
> memory usage just keeps piling up. We never had this problem with the
> old
Is there a way to force Tomcat 5.5 to run a garbage collection?
Thanks, Dan
Caldarale, Charles R wrote:
From: Daniel L. Gross [mailto:[EMAIL PROTECTED]
Subject: Re: Memory Usage
I have run the lamda probe on the software, but it
didn't show anything useful.
It's not
[mailto:[EMAIL PROTECTED]
Subject: Re: Memory Usage
I have run the lamda probe on the software, but it
didn't show anything useful.
It's not a profiler, and was never intended to be.
Where do I turn on the -verbose:gc? In the tomcat start-up script?
It's
wrote:
From: Daniel L. Gross [mailto:[EMAIL PROTECTED]
Subject: Re: Memory Usage
I have run the lamda probe on the software, but it
didn't show anything useful.
It's not a profiler, and was never intended to be.
Where do I turn on the -verbose:gc? In the tomcat start-up scri
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