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Delays rendering protected resource pages on Access Gateway under heavy load

This document (7011568) is provided subject to the disclaimer at the end of this document.

Environment

NetIQ Access Manager 3.2
NetIQ Access Manager 3.2 Access Gateway Appliance

Situation

Access Manager 3.2 setup and working fine. All users can access protected resources behind the Access Gateway (AG) after having authenticated successfully at the Identity (IDP) Server. After about 4 or 5 days, some users would start complaining about delays rendering application level pages viewed through the AG, which typically became worse at peak load times during the day. Restarting the Access Gateway proxy (/etc/init.d/novell-apache2 restart) would solve the problem for a few days.

Resolution

Edit the /etc/opt/novell/ag/mod_disk_cache_monitor.conf file on the AG and comment out the line with 'LoadModule disk_cache_monitor_module /opt/novell/ag/lib/mod_disk_cache_monitor.so'

This prevents the NetIQ disk caching monitoring that provides some caching stats to the Admin Console, but has no impact whatsoever on functionality. The overhead with the disk cache monitoring caused delays of up to 2 minutes on the AG before sending the object back to the browser, causing the delays visible at the browser level.

Disclaimer

This Support Knowledgebase provides a valuable tool for NetIQ/Novell/SUSE customers and parties interested in our products and solutions to acquire information, ideas and learn from one another. Materials are provided for informational, personal or non-commercial use within your organization and are presented "AS IS" WITHOUT WARRANTY OF ANY KIND.

  • Document ID:7011568
  • Creation Date:02-JAN-13
  • Modified Date:02-JAN-13
    • NetIQAccess Manager (NAM)

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