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Managing Application Processes

The platforms on which WebObjects can be installed have various means for monitoring running processes, including WebObjects application processes, and for terminating those processes (called rather violently, on UNIX platforms, "killing" processes). There can be many reasons for terminating processes, such as to upgrade to a modified version of an application or to debug a scripted application when page-recreation is turned off.

Solaris, HPUX, and Mach

Using a shell program (such as the Terminal application on Mach) enter the ps command on the command line. This command, without any arguments, lists minimal information about running processes. To narrow the search for a particular WebObjects application, give the following compound piped command on Solaris and HPUX:

  ps -eaf | grep ApplicationName

On Mach, the ps argumentsare different:

  ps -auxwww | grep ApplicationName

If you want to check on a scripted application, use WODefaultApp as ApplicationName. Here's some sample output:

  nobody    3012   0.0 11.7 5.49M 2.81M co S     0:13 WODefaultApp -d 
  /NextLibrary/WebServer/htdocs Examples/TimeOff

Note that the command-line arguments are shown, thereby allowing you to learn, in the case of WODefaultApp, which scripted applications are running.

To terminate an application, note its process ID (PID) number (3012 in the above example) and "kill" it:

  kill 3012

If you cannot kill the application from your own account, enter su, log into the superuser account, and try the kill command again.

Windows NT

On Windows NT 4.0 use the Task Manager program to monitor and terminate processes.

1. To activate the Task Manager, click the right mouse button on a blank area of the status bar (the rectangular strip containing the Start menu).
   

2. Choose Task Manager from the pop-up menu.
   

3. In the Task Manager window locate the WebObjects application process that you're interested in. If it's a scripted application, look for WODefaultApp. Task Manager presents options for customizing the information displayed, so if you're interested in a certain aspect of the process, be sure to select the appropriate option.
   

4. To terminate a process, select its name (so that it's highlighted) and click End Process.
   

On Windows NT 3.51, use Visual C++'s Pview program (if installed) to terminate processes.

Notes

If you cannot terminate an autostarted application on Windows NT, it is probably because it is started under an account for which you don't have privileges. See "Autostarting Applications" for instructions on rectifying this situation.

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