eG Monitoring
 

Measures reported by TomcatConnectorTest

The Http connector in the Tomcat Web server, represents a Connector component that supports the HTTP/1.1 protocol, which enables Catalina to function as a stand-alone web server, besides its ability to execute servlets and JSP pages. A particular instance of this component listens for connections on a specific TCP port number on the server to perform request processing and response creation. You can have one or more such Connectors configured to form a part of a single Service with each forwarding service to the associated engine.

The TomcatConnectorTest observes the data traffic on each connector and measures the connector's processing ability.

Measurement Description Measurement Unit Interpretation
Request_count Indicates the number of requests received by the connector, since the last measurement period Number  
Avg_processing_time Indicates the average time taken by the connector to process requests Secs This measure is a clear indicator of the Connector health. Ideally, this value should be low. A very high value indicates processing bottlenecks.  
Data_sent Reports the data that was sent by the connector since the last measurement period KB  
Data_received Reports the data that was received by the connector since the last measurement period KB Both the Data_sent and Data_received measures together indicate the load on the Tomcat server.
Error_count Indicates the number of errors that were reported by the connector since the last measurement period Number Ideally, the value of this measure should be 0. A non-zero value warrants further investigation.