Monitor：Apache Tomcat
Collect and monitor the general performance Metrics of Apache Tomcat.
Protocol Use：JMX
Configuration parameter
| Parameter name | Parameter help description |
|---|---|
| Monitoring Host | Monitored IPV4, IPV6 or domain name. Note⚠️Without protocol header (eg: https://, http://) |
| Monitoring name | Identify the name of this monitoring. The name needs to be unique |
| Port | Port provided by JMX |
| Username | JMX connection user name, optional |
| Password | JMX connection password, optional |
| Collection interval | Interval time of monitor periodic data collection, unit: second, and the minimum interval that can be set is 30 seconds |
| Whether to detect | Whether to detect and check the availability of monitoring before adding monitoring. Adding and modifying operations will continue only after the detection is successful |
| Description remarks | For more information about identifying and describing this monitoring, users can note information here |
Collection Metrics
Metrics Set：memory_pool
| Metric name | Metric unit | Metric help description |
|---|---|---|
| name | metrics name | |
| committed | kb | total size |
| init | kb | init size |
| max | kb | max size |
| used | kb | used size |
Metrics Set：code_cache
| Metric name | Metric unit | Metric help description |
|---|---|---|
| committed | kb | total size |
| init | kb | init size |
| max | kb | max size |
| used | kb | used size |
Metrics Set：class_loading
| Metric name | Metric unit | Metric help description |
|---|---|---|
| LoadedClassCount | Loaded Class Count | |
| TotalLoadedClassCount | Total Loaded Class Count | |
| UnloadedClassCount | Unloaded Class Count |
Metrics Set：thread
| Metric name | Metric unit | Metric help description |
|---|---|---|
| TotalStartedThreadCount | Total Started Thread Count | |
| ThreadCount | Thread Count | |
| PeakThreadCount | Peak Thread Count | |
| DaemonThreadCount | Daemon Thread Count | |
| CurrentThreadUserTime | ms | Current Thread User Time |
| CurrentThreadCpuTime | ms | Current Thread Cpu Time |
Tomcat Enable JMX Protocol
After building tomcat, enter the bin directory under tomcat and modify the catalina.sh file
vim catalina.sh Attention⚠️ Replace Hostname And Port
CATALINA_OPTS="$CATALINA_OPTS -Dcom.sun.management.jmxremote -Djava.rmi.server.hostname=10.1.1.52 -Dcom.sun.management.jmxremote.port=1099 -Dcom.sun.management.jmxremote.ssl=false -Dcom.sun.management.jmxremote.authenticate=false"