Tomcat (Legacy)
The Tomcat plugin lets you monitor a number of metrics on your web server. If you can not find this plugin in the /usr/lib/fm-agent/plugins folder, then your version of the Agent is out of date and you should update it to gain access to this feature.
Agent Configuration
Once the agent is installed, you will need to add the following information to the agent config file (/etc/fm-agent/fm_agent.cfg):
[tomcat]
username = <USERNAME>
password = <PASSWORD>
console_url = http://<IP>:<PORT>
The console_url is the URL that you use to access your Tomcat web server. Replace <IP> with your server’s IP address, and <PORT> with the port tomcat is listening to (this will be 8080 by default).
If you do not know the username and password required to sign in to your Tomcat URL, then you can find them in the conf/tomcat-users.xml file. The user you choose must be of the manager-gui role.
Control Panel Configuration
To use the Tomcat plugin, first select “Tomcat” from the monitoring catalog.
There are a number of metrics available to monitor.
|
Metric |
Unit |
|---|---|
|
Action/Classloadingtime |
|
|
Action/Errorcount |
|
|
Action/Loadtime |
|
|
Action/Maxtime |
|
|
Action/Processingtime |
|
|
Action/Requestcount |
|
|
Average total memory |
seconds |
|
Count of errors |
errors |
|
Count of expired sessions |
sessions |
|
Count of requests |
requests |
|
Current count of busy threads |
threads |
|
Current count of threads |
threads |
|
Default/Classloadingtime |
|
|
Default/Errorcount |
|
|
Default/Loadtime |
|
|
Default/Maxtime |
|
|
Default/Processingtime |
|
|
Default/Requestcount |
|
|
DynamicJAXWSServlet/Classloadingtime |
|
|
DynamicJAXWSServlet/Errorcount |
|
|
DynamicJAXWSServlet/Loadtime |
|
|
DynamicJAXWSServlet/Maxtime |
|
|
DynamicJAXWSServlet/Processingtime |
|
|
DynamicJAXWSServlet/Requestcount |
|
|
GC/Classloadingtime |
|
|
GC/Errorcount |
|
|
GC/Loadtime |
|
|
GC/Maxtime |
|
|
GC/Processingtime |
|
|
GC/Requestcount |
|
|
HTMLManager/Classloadingtime |
|
|
HTMLManager/Errorcount |
|
|
HTMLManager/Loadtime |
|
|
HTMLManager/Maxtime |
|
|
HTMLManager/Processingtime |
|
|
HTMLManager/Requestcount |
|
|
J4p-agent/Classloadingtime |
|
|
J4p-agent/Errorcount |
|
|
J4p-agent/Loadtime |
|
|
J4p-agent/Maxtime |
|
|
J4p-agent/Processingtime |
|
|
J4p-agent/Requestcount |
|
|
JMXProxy/Classloadingtime |
|
|
JMXProxy/Errorcount |
|
|
JMXProxy/Loadtime |
|
|
MXProxy/Maxtime |
|
|
JMXProxy/Processingtime |
|
|
JMXProxy/Requestcount |
|
|
Jsp/Classloadingtime |
|
|
Jsp/Errorcount |
|
|
Jsp/Loadtime |
|
|
Jsp/Maxtime |
|
|
Jsp/Processingtime |
|
|
Jsp/Requestcount |
|
|
JVM maximum memory |
megabytes |
|
JVM total memory |
megabytes |
|
Longest sessions alive time |
seconds |
|
Manager/Classloadingtime |
|
|
Manager/Errorcount |
|
|
Manager/Loadtime |
|
|
Manager/Maxtime |
|
|
Manager/Processingtime |
|
|
Manager/Requestcount |
|
|
Maximum number of active sessions |
sessions |
|
Maximum number of threads |
threads |
|
Maximum processing time |
milliseconds |
|
Mem/Classloadingtime |
|
|
Mem/Errorcount |
|
|
Mem/Loadtime |
|
|
Mem/Maxtime |
|
|
Mem/Processingtime |
|
|
Mem/Requestcount |
|
|
Memory used |
MB |
|
Number of loaded JSPs |
JSPs |
|
Number of reloaded JSPs |
JSPs |
|
Params/Classloadingtime |
|
|
Params/Errorcount |
|
|
Params/Loadtime |
|
|
Params/Maxtime |
|
|
Params/Processingtime |
|
|
Params/Requestcount |
|
|
Rejected sessions creations |
sessions |
|
RSDispatcher/Classloadingtime |
|
|
RSDispatcher/Errorcount |
|
|
RSDispatcher/Loadtime |
|
|
RSDispatcher/Maxtime |
|
|
RSDispatcher/Processingtime |
|
|
RSDispatcher/Requestcount |
|
|
ShutdownRestart/Classloadingtime |
|
|
ShutdownRestart/Errorcount |
|
|
ShutdownRestart/Loadtime |
|
|
ShutdownRestart/Maxtime |
|
|
ShutdownRestart/Processingtime |
|
|
ShutdownRestart/Requestcount |
|
|
Status/Classloadingtime |
|
|
Status/Errorcount |
|
|
Status/Loadtime |
|
|
Status/Maxtime |
|
|
Status/Processingtime |
|
|
Status/Requestcount |
|
|
Time to start up |
milliseconds |
|
Total active sessions |
sessions |
|
Total bytes received |
bytes |
|
Total bytes sent |
bytes |
|
Total number of active sessions since startup |
|
|
Total number of rejected sessions since startup |
|
|
Total number of requests served since startup |
|
|
Total processing time |
seconds |
|
Total processing time (in milliseconds) since startup |
|
|
Total sessions count |
sessions |
|
Total/Averagesessionalivetime |
|
|
Total/Bytesreceived |
|
|
Total/Bytessent |
|
|
Total/Currentthreadbusy |
|
|
Total/Currentthreadcount |
|
|
Total/Errorcount |
|
|
Total/Expiredsessions |
|
|
Total/Freememory |
|
|
Total/JSPsloaded |
|
|
Total/JSPsreloaded |
|
|
Total/Longestsessionalivetime |
|
|
Total/Maxactivesessions |
|
|
Total/Maxmemory |
|
|
Total/Maxprocessingtime |
|
|
Total/Maxthreads |
|
|
Total/Requestcount |
|
|
Total/Totalmemory |
|
|
WSServlet/Classloadingtime |
|
|
WSServlet/Errorcount |
|
|
WSServlet/Loadtime |
|
|
WSServlet/Maxtime |
|
|
WSServlet/Processingtime |
|
|
WSServlet/Requestcount |
If you would like to inspect the Tomcat plugin in more detail you can find the python script for it in the /usr/lib/fm-agent/plugins folder.