PQ74399: IIS WEBSERVER LOCKS UP AND RECEIVES 404 ERRORS ON WIN2000 WITH WAS 3.5.6 WHEN ADDHEADER AND SETHEADER FAILS | |||||||||||||||||||||||||||||||||||||||
![]() |
|||||||||||||||||||||||||||||||||||||||
APAR status Closed as program error. Error description Websphere Application Server V3.5.6 on Windows 2000 MS IIS Webserver V5.0 Websphere is horizonally cloned across two boxes. After user traffic reaches a peak, IIS locks up and users receive 404 errors. .... Customer ran the iis20.dll debug module from L3 plugin team: AddHeader and SetHeader are failing with error 14 (not enough storage is available to complete this operation). So it appears that the customer's system is having resource issues. This apar will fix that we do not continue processing when the add/setheader fails (the debug module included this feature). It appears that this will prevent the crash, however it will do nothing to resolve the customer's resource issues. The request will return with error 500 when the storage error is encountered.Local fix Problem summary **************************************************************** * USERS AFFECTED: All WebSphere Application Server users who * * use IIS webserver. * **************************************************************** * PROBLEM DESCRIPTION: Setting of plugin specific headers * * fails but the plugin continues to * * process the request resulting in 404 * * being returned to the browser instead * * of error 500. * **************************************************************** * RECOMMENDATION: * **************************************************************** Under load IIS may experience resource issues causing setheader and addheader functions to fail. The plugin was not checking the return code for these functions so processing continued. However since these plugin specific headers were not set request processing eventually fails resulting in 404 being returned to the browser. The error that should be returned is error 500.Problem conclusion Checked the return code for addheader and setheader functions. If an error occurs the system error message is logged in the plugin log and error 500 is returned to the webserver.Temporary fix Comments
APAR is sysrouted FROM one or more of the following: PQ68213 APAR is sysrouted TO one or more of the following: Modules/Macros
Publications Referenced
|
Product categories: Software > Application Servers >
Distributed Application & Web Servers > WebSphere Application
Server > General
Operating system(s):
Software version: 00W
Software edition:
Reference #: PQ74399
IBM Group: Software Group
Modified date: May 21, 2003
(C) Copyright IBM Corporation 2000, 2008. All Rights Reserved.