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Special Forums UNIX and Linux Applications How to Monitor Tomcat App Server? Post 302990350 by stomp on Wednesday 25th of January 2017 07:04:35 AM
Old 01-25-2017
I recommend these options:
  • Keep track at the Tomcat memory usage. E. g. with the nagios or any other plugin:

    check_tomcat.pl - Nagios Exchange
  • Check the web-site the tomcat is providing(if it is a website) or use simple application requests to your tomcat whatever that maybe. If the tomcat does not respond it's obviously dead.
  • Check for a running java-process meeting the criteria of you tomcat process
Maybe one want not only to know when an application is dead, but also how healthy that application is(memory usage, response time,...)
 

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nagios(8)							      Nagios								 nagios(8)

NAME
Nagios - network/systems status monitoring daemon SYNOPSIS
nagios [-h] [-v] [-s] [-d] <main_config_file> DESCRIPTION
nagios is a daemon program that monitors the status of various network accessible systems, devices, and more. For more information, please consult the online documentation available at http://www.nagios.org, or on your nagios server's web page. OPTIONS
main_config_file The main configuration file. On openSUSE systems this defaults to /etc/nagios/nagios.cfg -h A helpful usage message -v Reads all data in the configuration files and performs a basic verification/sanity check. Always make sure you verify your config data before (re)starting Nagios. You can also use the Nagios init script to verify your configuration - try: rcnagios check_verbose -s Shows projected/recommended check scheduling information based on the current data in the configuration files. -d Starts Nagios in daemon mode (instead of as a foreground process). FILES
/etc/nagios Default configuration directory for nagios AUTHOR
Nagios is written and maintained by Ethan Galstad <nagios@nagios.org>. This manual page was written by sean finney <seanius@debian.org> for the Debian GNU/Linux operating system (but it may be freely used, modified, and redistributed by others) and adapted by Lars Vogdt for openSUSE. sean finney, Lars Vogdt February 2006, May 2010 nagios(8)
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