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JMX access tools and modules
Home Page: http://search.cpan.org/~roland/jmx4perl/
License: Other
This project forked from rhuss/jmx4perl
JMX access tools and modules
Home Page: http://search.cpan.org/~roland/jmx4perl/
License: Other
Jmx4Perl ======== INTRODUCTION Jmx4Perl provides an alternate way for accessing Java JEE Server management interfaces which are based on JMX (Java Management Extensions). It is an agent based approach, where a small Java Webapplication deployed on the application server provides an HTTP/JSON based access to JMX MBeans registered within the application server. HOW IT WORKS For the agent mode a small Java Agent WAR (web archive) needs to be deployed on the Java application server. This agent is provided by the Jolokia project (www.jolokia.org). There is no need to add any startup parameters to the application server and to open any additional ports. All communication takes places via HTTP where JSON objects are exchanged. Additionally, the agent benefits from the security infrastructure in place which every application server provides for web application. More information about the agent can be found at http://www.jolokia.org The Perl module JMX::Jmx4Perl accesses the deployed agent servlet and transform the request's results from JSON into a simple Perl object. TOOLS This distribution comes with several tools, which uses the JMX::Jmx4Perl for accessing the server: jmx4perl - Command line tool for gathering JMX information check_jmx4perl - Full featured Nagios Plugin j4psh - Interactive, readline based JMX shell with context sensitive command completion jolokia - Utility for downloading and managing Jolokia agents. INSTALLATION The Perl part installs as any other module via Module::Build, which you need to have installed. Using perl Build.PL ./Build installdeps # If there are dependencies missing and you # have Module::Build >= 0.36 installed. ./Build ./Build test ./Build install will install the modules. It is highly recommended to install the recommended dependent modules, too to get the full jmx4perl power. The set of 'required' modules is kept small and guarantees only that 'jmx4perl' and the modules around JMX::Jmx4Perl are working properly. The other tools (check_jmx4perl, j4psh and jolokia) require the recommended modules for proper working. Look into Build.PL for which tool requires which module. In order to download the Jolokia WAR agent into the local directory as jolokia.war, use the following command jolokia This agent "jolokia.war" needs to be deployed on the JEE Server to monitor. Please consult http://www.jolokia.org/agent.html for more information how to install the agent. E.g. for Tomcat this war file needs to be copied into the webapps directory. To test it, you can use 'jmx4perl' with the URL of the deployed agent: jmx4perl http://<jeeserver>:<port>/jolokia Consult 'man jmx4perl' for more information about this command utility. RESOURCES * Jmx4perl's source is hosted on github.com. You can clone the repository with git://github.com/rhuss/jmx4perl.git as URL * Interesting articles around Jmx4Perl, JMX and Nagios can be found at http://labs.consol.de Checkout the various post categories for selecting a specific topic. * https://metacpan.org/pod/distribution/jmx4perl is the canonical entry point for jmx4perl related information. NOTE For you convenience, the latest Module::Build is included in this distribution, so there is no need of a locally install Module::Build for installing this suite. More information about Module::Build can be found http://search.cpan.org/~dagolden/Module-Build/ LICENSE Copyright (C) 2009-2011 Roland Huss ([email protected]) Jmx4perl is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 2 of the License, or (at your option) any later version. jmx4perl is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with jmx4perl. If not, see <http://www.gnu.org/licenses/>. A commercial license is available as well. You can either apply the GPL or obtain a commercial license for closed source development. Please contact [email protected] for further information. PROFESSIONAL SERVICES Just in case you need professional support for this module (or Nagios, JMX or JEE in general), you might want to have a look at http://www.consol.com/nagios-monitoring . Contact [email protected] for further information (or use the contact form at http://www.consol.com/contact/ ) ACKNOWLEDGMENTS Big thanks go to ... * Gerhard Lausser, who initially pushed me to think harder about a better way for monitoring JEE Servers with Nagios. * Danijel Tasov for patching, patching, patching and keeping an eye on contemporary perl styling. * All bug reporters and blog commenters for helping me to increase the overall quality (and for letting me know that this is not software for the ivory tower) BUGS Please report any bugs and/or feature requests at http://rt.cpan.org/Public/Bug/Report.html?Queue=jmx4perl AUTHOR [email protected]
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