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Posted to users@tomcat.apache.org by Liang Xiao Zhu <ub...@goldigolino.com.es> on 2008/06/11 13:21:17 UTC
Jconsole or JMXPROXY monitoring memory usage of the system
Hi,
I would like to know if there is some way which I can monitoring of the
memory usage through of Tomcat. I mean, I have currently running a
Tomcat 6 server, and through that I want to know not only the memory
usage of JVM also the memory usage of the system.
Thanks in advance
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Re: Jconsole or JMXPROXY monitoring memory usage of the system
Posted by Liang Xiao Zhu <ub...@goldigolino.com.es>.
Can anyone help me?
Liang Xiao Zhu escribió:
> Hi,
>
> I would like to know if there is some way which I can monitoring of
> the memory usage through of Tomcat. I mean, I have currently running a
> Tomcat 6 server, and through that I want to know not only the memory
> usage of JVM also the memory usage of the system.
>
> Thanks in advance
>
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> To start a new topic, e-mail: users@tomcat.apache.org
> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
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>
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Re: Jconsole or JMXPROXY monitoring memory usage of the system
Posted by Liang Xiao Zhu <ub...@goldigolino.com.es>.
Thanks for your answer!!!
Christopher Schultz escribió:
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>
> Liang,
>
> Liang Xiao Zhu wrote:
> | I would like to know if there is some way which I can monitoring of the
> | memory usage through of Tomcat. I mean, I have currently running a
> | Tomcat 6 server, and through that I want to know not only the memory
> | usage of JVM also the memory usage of the system.
>
> I don't believe the JVM has access to this information directly. You'd
> have to write your own native code to interrogate the operating system
> for this information. I wouldn't be surprised if something like this
> already exists somewhere.
>
> Note that this would not be a Tomcat-specific library -- it would be
> applicable in any Java program, not just a web application.
>
> - -chris
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> =+6fS
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Re: Jconsole or JMXPROXY monitoring memory usage of the system
Posted by André Warnier <aw...@ice-sa.com>.
Christopher Schultz wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
> Liang,
>
> Liang Xiao Zhu wrote:
> | I would like to know if there is some way which I can monitoring of the
> | memory usage through of Tomcat. I mean, I have currently running a
> | Tomcat 6 server, and through that I want to know not only the memory
> | usage of JVM also the memory usage of the system.
>
> I don't believe the JVM has access to this information directly. You'd
> have to write your own native code to interrogate the operating system
> for this information. I wouldn't be surprised if something like this
> already exists somewhere.
>
> Note that this would not be a Tomcat-specific library -- it would be
> applicable in any Java program, not just a web application.
>
To offer a solution idea that would on the other hand be very specific
and non-portable, but maybe usable if this is for one server and you do
not find anything more elegant :
It must be possible in a servlet to execute a system-level command, grab
its output and filter it to get what you want to know.
I could tell you how to do this under Apache and perl, but unfortunately
I don't know under Tomcat and Java. But I am sure that someone on this
list can give us a tip.
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Re: Jconsole or JMXPROXY monitoring memory usage of the system
Posted by Christopher Schultz <ch...@christopherschultz.net>.
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Hash: SHA1
Liang,
Liang Xiao Zhu wrote:
| I would like to know if there is some way which I can monitoring of the
| memory usage through of Tomcat. I mean, I have currently running a
| Tomcat 6 server, and through that I want to know not only the memory
| usage of JVM also the memory usage of the system.
I don't believe the JVM has access to this information directly. You'd
have to write your own native code to interrogate the operating system
for this information. I wouldn't be surprised if something like this
already exists somewhere.
Note that this would not be a Tomcat-specific library -- it would be
applicable in any Java program, not just a web application.
- -chris
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Version: GnuPG v1.4.9 (MingW32)
Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org
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f3gAn3s99h/jWf4TUzIeqswdBviWWecp
=+6fS
-----END PGP SIGNATURE-----
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Re: Jconsole or JMXPROXY monitoring memory usage of the system
Posted by Christopher Schultz <ch...@christopherschultz.net>.
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André,
André Warnier wrote:
| Is there some kind of general source of information, or registry or
| repository, where one could find [...] a list of already-developed
add-on modules for Tomcat?
Not really. Most of the Tomcat-specific stuff actually comes with
Tomcat. Outside of that, there are tons of tools out there that are
built for generic (servlet-spec-conforming) web applications.
A good example is url-rewrite (http://tuckey.org/urlrewrite/) which is
often mentioned on this list. It is by no means Tomcat-specific, so it
doesn't really belong on a "Tomcat Add-Ons" page. Rather, it belongs on
a "useful web application libraries" page. I can think of about 100
libraries myself that could go on that list, and there are surely
thousands more. Google is a better list keeper than anyone here would be.
| I can consult the list of add-ons at httpd.apache.org
Yes, but these are modules supplied by Apache directly. Anything that is
Tomcat-related actually comes with Tomcat (except for mod_jk, which is
easily findable on the website as well).
| when I want to know the same for perl modules, I go to www.cpan.org.
| What about Tomcat ?
Tomcat just doesn't have that kind of community infrastructure. Are you
volunteering? ;)
- -chris
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Re: Jconsole or JMXPROXY monitoring memory usage of the system
Posted by André Warnier <aw...@ice-sa.com>.
Hi.
May I take the opportunity and ride on the question below, to ask :
Is there some kind of general source of information, or registry or
repository, where one could find the answer to the question below, but
also get a list of already-developed add-on modules for Tomcat ?
I mean, when I need to find out if there already exists an add-on to
Apache for authentication via a post-gothic chocolate cookie server, I
can consult the list of add-ons at httpd.apache.org; and when I want to
know the same for perl modules, I go to www.cpan.org.
What about Tomcat ?
Thanks in advance,
André
Liang Xiao Zhu wrote:
> Hi,
>
> I would like to know if there is some way which I can monitoring of the
> memory usage through of Tomcat. I mean, I have currently running a
> Tomcat 6 server, and through that I want to know not only the memory
> usage of JVM also the memory usage of the system.
>
> Thanks in advance
>
> ---------------------------------------------------------------------
> To start a new topic, e-mail: users@tomcat.apache.org
> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
> For additional commands, e-mail: users-help@tomcat.apache.org
>
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