[ale] Tomcat Monitoring

[Jerald Sheets]

If JMX is on, you can throw periodic calls at the endpoint and get back metrics you’d like to see.  Check this out:

using the free package “check_jmx”
https://exchange.nagios.org/directory/Plugins/Java-Applications-and-Servers/check_jmx/details:


./check_jmx -U service:jmx:rmi://10.212.212.37:44444/jndi/rmi://10.212.212.37:1099/karaf-root -O java.lang:type=Memory -A HeapMemoryUsage -K used -I HeapMemoryUsage -J used -vvvv -w 4248302272 -c 5498760192 -username XXXXX -password XXXXX

Eden Space Used
./check_jmx -U service:jmx:rmi:///jndi/rmi://localhost:1099/jmxrmi -O java.lang:type=MemoryPool,name="Eden Space" -A Usage -K used -username XXXXX  -password XXXXX

Perm Gen Used
./check_jmx -U service:jmx:rmi:///jndi/rmi://localhost:1099/jmxrmi -O java.lang:type=MemoryPool,name="Perm Gen" -A Usage -K used -username XXXXX -password XXXXX

Survivor Space Used
./check_jmx -U service:jmx:rmi:///jndi/rmi://localhost:1099/jmxrmi -O java.lang:type=MemoryPool,name="Survivor Space" -A Usage -K used -username XXXXX -password XXXXX

Tenured Gen Used
./check_jmx -U service:jmx:rmi:///jndi/rmi://localhost:1099/jmxrmi -O java.lang:type=MemoryPool,name="Tenured Gen" -A Usage -K used -username XXXXX -password XXXXX



> On Oct 4, 2016, at 6:20 AM, Chuck Payne <terrorpup at gmail.com> wrote:
> 
> Guys,
> 
> I got a couple of Tomcat Apps that when Jenkins does a build the app
> stop responding.
> 
> I can't use tcp port monitor with Nagios, because tomcat is up.
> 
> So is there a way to monitor an app with Nagios, that is the pages
> stop responding. I can get an alert, if I have to write my own jsp
> page to monitor.
> --
> Terror PUP a.k.a
> Chuck "PUP" Payne
> -----------------------------------------
> Discover it! Enjoy it! Share it! openSUSE Linux.
> -----------------------------------------
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> 
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> to package and distribute , or create your own linux distro. Give SUSE
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