Administering portlet preferences for Portlet load monitoring

You can set portlet preferences to influence in which cases Portlet load monitoring blocks or reenables JSR portlets.

About this task

You can configure parameters for the following:
  • Maximum number of concurrent requests
  • Reactivation limit of concurrent requests for reactivating the portlet
  • Allowed average response time. You can configure the sample number of requests by which this average response time for portlets is calculated as mentioned in configuration tasks.
For more information about these three parameters and their meaning, refer to the topic about Portlet configuration parameters for Portlet load monitoring. For information about setting the sample by which the average response time is calculated refer to the topic about Portal configuration parameters for Portlet load monitoring.

Procedure

  1. Log in to the portal by using a portal administrator user ID.
  2. Click the Administration menu icon. Then, click Portlet Management > Portlets.
    The Manage Portlets portlet is displayed. It lists the portlets in your portal.
  3. Search for the portlet for which you want to set portlet preferences.
  4. Select the Configure Portlet icon.
  5. Add a portlet preference, and type number for the new portlet preference:
    • To set the maximum number of requests that you want to allow for this portlet, add com.ibm.wps.pe.plm.maxrequest = xyz for the new portlet preference. For example, if you want to allow this portlet no more than 15 concurring requests, specify com.ibm.wps.pe.plm.maxrequest = 15.
    • To set the reactivation limit for this portlet, add com.ibm.wps.pe.plm.minrequest = xyz for the new portlet preference. For example, if you want this portlet to be reenabled when its concurrent requests fall back to 5 or less, specify com.ibm.wps.pe.plm.minrequest = 5.
    • To set the allowed average response time for this portlet, add com.ibm.wps.pe.plm.average.time.processing = xyz, where xyz is the average response time in milliseconds. For example, if you specify com.ibm.wps.pe.plm.average.time.processing = 3000 and the average response time for this portlet exceeds 3 seconds, then Portlet load monitoring blocks further requests to this portlet.
  6. Click Add to add the preference.
  7. Save your changes by clicking OK.

What to do next

As an alternative, you can define a portlet preference before you deploy the portlet. In this case add the portlet preference to the portlet.xml deployment descriptor of your WAR file.