111 lines
6.2 KiB
HTML
111 lines
6.2 KiB
HTML
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<html>
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<head>
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<META http-equiv="Content-Type" content="text/html; charset=utf-8">
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<LINK rel="stylesheet" type="text/css" href="../../../rzahg/ic.css">
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<title>Troubleshoot: Web resources</title>
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</head>
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<BODY>
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<!-- Java sync-link -->
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<SCRIPT LANGUAGE="Javascript" SRC="../../../rzahg/synch.js" TYPE="text/javascript"></SCRIPT>
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<h3><a name="trwebresrc"></a>Troubleshoot: Web resources</h3>
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<p>Use the resources listed below to determine the cause of problems that occur
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when you are unable to access Web resources:</p>
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<p><strong>Unable to serve any Web resources</strong></p>
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<ul>
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<li>
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<p>See the <a href="../install/install.htm">installation of WebSphere Application
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Server - Express for iSeries</a> topic. The topic will guide you through
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the system verification and serving of a Web resource. </p>
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</li>
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<li>
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<p>If you are using HTTP Server (powered by Apache), generate a trace on
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your HTTP Server instance and look for errors. See <a href="trbappsrvtrace.htm">Use
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the application server trace service </a>for more information.</p>
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</li>
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<li>
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<p>Web server plug-in trace.</p>
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<p>The plug-in log records HTTP server-side processing and servlet request
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routing between the HTTP Server and WebSphere Application Server - Express.
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(The plug-in connects the HTTP Server and WebSphere Application Server
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- Express together.)</p>
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<p>Manage this log by editing the application server plugin-cfg.xml file.
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The plugin-cfg.xml file contains a tag near the beginning named Log. Log
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has two attributes: LogLevel and Name.</p>
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<ul>
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<li>
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<p>LogLevel specifies the amount and type of information that is logged
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to a file. Valid values are Trace, Warn, and Error.</p>
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</li>
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<li>
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<p>Name specifies the location and name of the file where logging information
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is written.</p>
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</li>
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</ul>
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</li>
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<LI>
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<p>Read the release notes:</p>
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<ul>
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<li><a href="http://www.ibm.com/servers/eserver/iseries/software/websphere/wsappserver/express/docs/relnotesexp51.html" target="_">WebSphere
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Application Server - Express V5.1.0.X Release Notes</a> <img src="www.gif" width="18" height="15" alt="Link outside Information Center" border="0"> (http://www.ibm.com/servers/eserver/iseries/software/websphere/wsappserver/<br>express/docs/relnotesexp51.html)</li>
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<li><a href="http://www.ibm.com/servers/eserver/iseries/software/websphere/wsappserver/express/docs/relnotesexp511.html" target="_">WebSphere
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Application Server - Express V5.1.1 Release Notes</a> <img src="www.gif" width="18" height="15" alt="Link outside Information Center" border="0"> (http://www.ibm.com/servers/eserver/iseries/software/websphere/wsappserver/<br>express/docs/relnotesexp511.html)</li>
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</ul>
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</LI>
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</ul>
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<p><strong>Unable to serve a particular Web resource</strong></p>
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<ul>
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<li>
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<p>Check the application server standard output and standard error log files
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for errors. For information on the application server log files and where
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they are located, see <a href="trblogs.htm">WebSphere Application Server
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- Express log files</a>. </p>
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</li>
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<LI>
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<p>Read the release notes:</p>
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<ul>
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<li><a href="http://www.ibm.com/servers/eserver/iseries/software/websphere/wsappserver/express/docs/relnotesexp51.html" target="_">WebSphere
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Application Server - Express V5.1.0.X Release Notes</a> <img src="www.gif" width="18" height="15" alt="Link outside Information Center" border="0"> (http://www.ibm.com/servers/eserver/iseries/software/websphere/wsappserver/<br>express/docs/relnotesexp51.html)</li>
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<li><a href="http://www.ibm.com/servers/eserver/iseries/software/websphere/wsappserver/express/docs/relnotesexp511.html" target="_">WebSphere
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Application Server - Express V5.1.1 Release Notes</a> <img src="www.gif" width="18" height="15" alt="Link outside Information Center" border="0"> (http://www.ibm.com/servers/eserver/iseries/software/websphere/wsappserver/<br>express/docs/relnotesexp511.html)</li>
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</ul>
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</LI>
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</ul>
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<p><strong>Servlet or JSP displays an error or Java exception instead of the
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expected output</strong></p>
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<ul>
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<li>
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<p>Check the application server standard output and standard error log files
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for errors. For information on the application server log files and where
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they are located, see <a href="trblogs.htm">WebSphere Application Server
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- Express log files</a>. </p>
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</li>
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<li>
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<p>Add logging and tracing to your application with the JRas framework. See <a href="trbappsrvtrace.htm">Use
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the application server trace service</a> for more information. </p>
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</li>
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<li>
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<p>Add output to your servlet, JSP, or Java code in the form of System.out.println()
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statements to aid in debugging. The output from any System.out.println()
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statements is written to the standard output log file for the application
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server in which the code is running. For information on the application
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server log files and where they are located, see <a href="trblogs.htm">WebSphere
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Application Server - Express log files</a>. </p>
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</li>
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<li>
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<p>If the failure occurs within a JSP, use the keepgenerated attribute to
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keep the generated servlet source file to inspect for errors.</p>
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</li>
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<LI>
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<p>Read the release notes:</p>
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<ul>
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<li><a href="http://www.ibm.com/servers/eserver/iseries/software/websphere/wsappserver/express/docs/relnotesexp51.html" target="_">WebSphere
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Application Server - Express V5.1.0.X Release Notes</a> <img src="www.gif" width="18" height="15" alt="Link outside Information Center" border="0"> (http://www.ibm.com/servers/eserver/iseries/software/websphere/wsappserver/<br>express/docs/relnotesexp51.html)</li>
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<li><a href="http://www.ibm.com/servers/eserver/iseries/software/websphere/wsappserver/express/docs/relnotesexp511.html" target="_">WebSphere
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Application Server - Express V5.1.1 Release Notes</a> <img src="www.gif" width="18" height="15" alt="Link outside Information Center" border="0"> (http://www.ibm.com/servers/eserver/iseries/software/websphere/wsappserver/<br>express/docs/relnotesexp511.html)</li>
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</ul>
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</LI>
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</ul>
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</body>
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</html>
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