Viewing information about the GAS

Statistics computed by the Genero Application Server (GAS) dispatcher are fed into the monitor URL page. Use this page to monitor and troubleshoot GAS operations.

When you open the monitor page, the dispatcher gathers information from all the proxies it has launched such as: number of DVM started by a proxy, the process IDs (PIDs) of each DVM, date and time of the last request, and so on. This information is then put together and displayed in the monitor page.
Note:

The information displayed represents the state of the dispatcher and proxies at the time of the request. This may change over time if you do the same request one second later for instance.

Tip:

Data is displayed in XML format. You can modify the way statistics are presented by customizing the monitor.xslt file located in $FGLASDIR/web/fjs.

Use this list to check the current status and operations of the GAS:
  • If, for example, you are troubleshooting HTTP request failures, use the Dispatcher logs file link found at the top of the page to open a page where logs are displayed.

  • If you need statistics about the CPU usage of the dispatcher, go to the Dispatcher resources usage section of the page. See Dispatcher resources usage.

  • If you need to manage Genero Archives and Genero Browser Clients deployed on the GAS, use the Deployment portal link to access a tool for this purpose.
  • Your GAS may have invalid configuration files for Web services. You can check for this by using a link to the Invalid configuration files tool in the General information section.
  • If you are monitoring or troubleshooting Web services, go to the Monitoring for GWS proxies section of the page. See Monitoring for GWS proxies.
  • If you are monitoring or troubleshooting Web applications, go to the Monitoring for UA proxies section of the page. See Monitoring for UA proxies.
  • If you are monitoring statistics by HTTP type requests, go to the Monitoring for HTTP requests section of the page. See Monitoring for HTTP requests.
Figure: Monitoring: GAS

The images shows a screenshot of the GAS monitor page
General information
Use this section to check details about the dispatcher in use:
  • Dispatcher name (for example, httpdispatch, fastcgidispatch, or isapidispatch)
  • Date and time launched
  • Version
  • Build date

A link to Invalid configuration files provides you with access to a tool to check for invalid configuration files for Web services in the GAS.

Monitoring for GWS proxies
If you are monitoring Web services running on the GAS, the number of active Web services (GWS) sessions is shown. If sessions are active they are listed by session id, and within that by application ids and number of connections. If you need to troubleshoot or view log details, you can access the logs by clicking on links:
  • Detailed monitoring… opens a Genero Session Monitoring page where you can monitor information about the session, such as the proxy, the environment, the DVM, etc.
  • Proxy logging... opens a page showing the gwsproxy log, which contains a chronology of activity since the proxy started.
If sessions are not active, you see the following message. No links are shown:
Number of active sessions: 0
Monitoring for UA proxies

Use this section to get information about the number of active Web application sessions.

If sessions are active, a list of the session ids are shown. You can see what applications (application id) are running and how many connections are used in a session. If you need further details, you can access the relevant logs by clicking on these links:
  • Detailed monitoring… opens a Genero Session Monitoring page where you can monitor information about the session: the proxy, the environment, the DVM, etc.
  • Proxy logging... opens a page showing the uaproxy logs containing a chronology of activity since the proxy started.
If sessions are not active, you see the following message. No links are shown:
Number of active sessions: 0
Dispatcher resources usage
Monitoring the dispatcher resource usage provides you with the following details:
  • Process id
  • Resources used since startup
  • Resources used since last check
  • Number of running threads:
  • Process environment variables
Monitoring for HTTP requests
If you need to know, for example, how many requests for Web services are being handled by the GAS, monitoring HTTP requests for /ws/r in this section, provides you with the following information:
  • Handled requests
  • In-progress requests
  • Successful requests
  • Average time
  • Last request time

Use this section to monitor the HTTP requests for Web applications, Web services, and monitoring.