Apache Tomcat

Table 1-19 Supported Configuration Metrics for Java Application Server

Metric Group	Name	Unit	Description
Server	Listen Port	N/A	The value of the server listening port
SSL Server	SSL Listen Port	N/A	The value of the secure server listening port
Datasource Config Metrics	Datasource Name	N/A	Name of the Datasource
Datasource Config Metrics	Datasource Connection URL	N/A	URL of Datasource Connection
JDBC Connection Pool	Maximum JDBC Connections	N/A	The maximum pool size of JDBC connections
JDBC Connection Pool	Minimum JDBC Connections	N/A	The minimum pool size of JDBC connections
JVM Configuration	Maximum Heap Size	GB	Maximum heap size configured
JVM Configuration	Operating System Name	N/A	Name of the operating system
JVM Configuration	Operating System Version	N/A	Version of the operating system
JVM Configuration	Java Vendor	N/A	The company that created this Java implementation
JVM Configuration	Java Version	N/A	The version of this Java implementation

Table 1-20 Supported Configuration Metrics for Hosted Target

Metric Group	Name	Unit	Description
Resource Allocation	Total CPUs	N/A	Total number of CPUs allocated or available to the entity
Resource Allocation	Total Memory	GB	Total amount of usable Physical RAM allocated or available to the entity

Table 1-21 Status and Performance Metrics for Java Application Server

Metric Group	Category	Name	Unit	Description
JVM Memory Usage	Load	Heap Usage	GB	Current size of the JVM memory heap in GB
JVM Memory Usage	N/A	Heap Utilization	%	Current size of the JVM memory heap in percent
JVM Memory Usage	N/A	Non-Heap Memory Usage	GB	Current size of the JVM non-heap memory in GB
Threads	Load	Active Threads	N/A	The number of active threads running in JVM
JVM Garbage Collection	N/A	Garbage Collector Name	N/A	Name of the Garbage Collector
JVM Garbage Collection	Load	Heap Usage After GC	GB	Heap memory after garbage collection
JVM Garbage Collection	Utilization	Heap Utilization After GC	%	Heap memory used as a percentage of maximum heap memory after garbage collection
JVM Garbage Collection	Load	Max Heap After GC	GB	Maximum heap memory after garbage collection in GB, that can be used by Java virtual machine for memory management
JVM Garbage Collection	N/A	Committed Heap After GC	GB	Committed heap memory after garbage collection in GB. Committed memory is guaranteed to be available for use by the Java virtual machine
JVM Garbage Collection	N/A	Non-Heap Usage After GC	GB	Non-heap memory usage after garbage collection
JVM Garbage Collection	Response	Garbage Collection Execution Time	ms	The average time in milliseconds per garbage collector invocation during the last collection interval
JVM Garbage Collection	Load	Garbage Collection Throughput	ops/min	The average rate at which garbage collection ran during the last collection interval
JVM Garbage Collection	Utilization	Garbage Collection Overhead	%	The percentage of time spent in garbage collection during the last collection interval
JVM Garbage Collection	N/A	Old HeapSize After GC	GB	Size in GB of the old generation heap after garbage collection
JVM Garbage Collection	N/A	Old Heap Utilization After GC	%	Percentage of the old generation heap that is free after garbage collection
JVM Garbage Collection Rollup	Response	Avg GC Execution Time	ms	The average time in milliseconds per garbage collector invocation across all garbage collectors
JVM Garbage Collection Rollup	N/A	GC Collection Overhead	%	The percentage of time spent in garbage collection during the last collection interval across all garbage collectors
JVM Garbage Collection Rollup	Load	Avg GC Throughput	ops/min	The average rate at which garbage collection ran during the last collection interval across all garbage collectors

Table 1-22 Status and Performance Metrics for Database Connectable Web Application Server

Metric Group	Category	Name	Unit	Description
Datasource Metrics	Load	JDBC Connectino Pool Size	N/A	Size of the Datasource connection pool
Datasource Metrics	Load	JDBC Connections in Use	N/A	Datasource connections in use

Table 1-23 Supported Status and Performance Metrics for Web Application Server

Metric Group	Category	Name	Unit	Description
Web Requests	Load	Web Request Processing Time	ms	Average processing time per web request since the last collection
Web Requests	N/A	Web Request Rate	ops/min	Number of web requests per minute since the last collection
Web Application Component	Load	Open HTTP Sessions	N/A	Current total number of open HTTP sessions for all the web applications on this web application server

Table 1-24 Supported Status and Performance Metrics for Hosted Target

Metric Group	Category	Name	Unit	Description
CPU	Utilization	CPU Usage	sec	All CPUs usage during the interval
CPU	N/A	CPU Utilization	%	Percentage of CPU that was utilized
CPU	N/A	Interval	sec	Interval of metric collection
Memory	Load	Memory Usage	GB	Memory used in GB
Memory	Utilization	Memory Utilization	%	Percentage of memory that is utilized
Memory	N/A	Interval	sec	Interval of metric collection

Table 1-25 Status and Performance Metrics for Generic Target

Metric Group	Category	Name	Unit	Description
Response	Availability	Status	N/A	Status of the target