NonStop Servlets for JavaServer Pages (NSJSP) 7.0 System Administrator's Guide

Configuring NSJSP

NonStop Servlets for JavaServer Pages (NSJSP) 7.0 System Administrator’s Guide—674372-005

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The server.xml File

Example 3-49 shows the default values for the RequestTrackerValve.

Request Dumper Filter

The class name of this filter is

com.hp.tandem.nsjsp.valves.NSJSPRequestDumperFilter. This

filter dumps (that is, records) all the incoming requests and the outgoing

responses to the parent log file. For example, if this filter is configured under an

Engine and is turned on by setting the dumperOn property to true, the valve

dumps all the requests and responses for all the applications in all the Hosts

configured for the Engine. This filter too, like any other filter, can be configured

in an Engine, Host or a Context. The recordLength property indicates

the maximum size of the record printed to the log file. A record is printed for the

request and another for the response.

The default server.xml file does not have this valve configured. If this filter is

configured, the dumperOn and the recordLength properties can be changed

while the server is running using the MBeans feature of the NSJSP Manager

application.

Executor Element

The Executor represents a thread pool that can be shared between components

in Tomcat. Historically there has been a thread pool per connector created but this

allows you to share a thread pool, between (primarly) connector but also other

components when those get configured to support executors.

The Executor has to implement the org.apache.catalina.Executor

interface.

The Executor is a nested element to the Service element. And for it to be

picked up by the connectors, the Executor element has to appear prior to the

Connector element in server.xml.

Example 3-50

shows the default values for the Executor element.

Example 3-49. The Default Values for the RequestTrackerValve

<Host name="localhost" appBase="webapps" unpackWARs="true"

autoDeploy="true"

configClass="com.tandem.servlet.catalina.startup.NSJSPContextConfig">

</Host>