NonStop Servlets for JavaServer Pages (NSJSP) 6.1 System Administrator's Guide

Introduction to NSJSP
NonStop Servlets for JavaServer Pages (NSJSP) 6.1 System Administrator’s Guide—596210-006
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Architecture
Architecture
This section discusses the relevant components of Apache Tomcat that will help
describe how Apache Tomcat was ported onto the HP NonStop platform as NSJSP,
and the NSJSP architecture.
Apache Tomcat Components
The connector component of Apache Tomcat provides the capabilities of a web server
and the container component provides a servlets and JSP container. The connector
and the container components are called Coyote and Catalina respectively.
Coyote includes an HTTP connector and an Apache JServ Protocol (AJP) connector.
The HTTP connector implements the HTTP/1.1 protocol and the AJP connector
implements the AJP 1.3 protocol.
The HTTP Connector allows Apache Tomcat to function as a standalone web server,
by listening to and handling HTTP connection requests on a TCP port.
The AJP connector is used to integrate Apache Tomcat with an Apache Web Server. In
this case, the Apache Web Server acts as the front end web server for Apache Tomcat.
Apache Tomcat then only handles servlet and JSP requests.
Figure 1-7 illustrates a standalone Apache Tomcat servlet container using the HTTP
Connector.