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Cisco Unified Communications Manager Managed Services Guide
OL-22523-01
Chapter 5 Cisco Unified Real-Time Monitoring Tool Tracing, PerfMon Counters, and Alerts
Performance Monitoring in RTMT
Cisco Tomcat JVM
The Cisco Tomcat Java Virtual Machine (JVM) object provides information about the Tomcat JVM,
which represents, among other things, a pool of common resource memory that Cisco Unified
Communications Manager related web applications such as Cisco Unified Communications Manager
Administration, Cisco Unified Serviceability, Cisco Unity Connection Administration, and more use.
Table 5-44 contains information on the Tomcat JVM counters.
ThreadsTotal This counter represents the current total number of request processing threads,
including available and in-use threads, for the connector. A Tomcat HTTP
connector represents an endpoint that receives requests and sends responses. The
connector handles HTTP/HTTPS requests and sends HTTP/HTTPS responses
that occur when Cisco Unified Communications Manager related windows are
accessed. The Secure Socket Layer (SSL) status of the URLs for the web
application provides basis for the instance name for each Tomcat HTTP
connector. For example, https://<IP Address>:8443 for SSL or http://<IP
Address>:8080 for non-SSL.
ThreadsMax This counter represents the maximum number of request processing threads for
the connector. Each incoming request on a Cisco Unified Communications
Manager related window requires a thread for the duration of that request. If more
simultaneous requests are received than the currently available request processing
threads can handle, additional threads will get created up to the configured
maximum shown in this counter. If still more simultaneous requests are received,
they accumulate within the server socket that the connector created, up to an
internally specified maximum number. Any further simultaneous requests will
receive connection refused messages until resources are available to process them.
A Tomcat HTTP connector represents an endpoint that receives requests and
sends responses. The connector handles HTTP/HTTPS requests and sends
HTTP/HTTPS responses that occur when Cisco Unified Communications
Manager related windows are accessed. The Secure Socket Layer (SSL) status of
the URLs for the web application provides basis for the instance name for each
Tomcat HTTP connector. For example, https://<IP Address>:8443 for SSL or
http://<IP Address>:8080 for non-SSL.
ThreadsBusy This counter represents the current number of busy/in-use request processing
threads for the connector. A Tomcat Connector represents an endpoint that
receives requests and sends responses. The connector handles HTTP/HTTPS
requests and sends HTTP/HTTPS responses that occur when web pages that are
related to Cisco Unified Communications Manager are accessed. The Secure
Sockets Layer (SSL) status of the URLs for the web application provides the basis
for the instance name for each Tomcat connector. For example, https://<IP
Address>:8443 for SSL or http://<IP Address>:8080 for non-SSL.
Table 5-43 Cisco Tomcat Connector (continued)
Counters Counter Description
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