PQ70459: WEBSPHERE THROWS 500 ERRORS WHEN ATTEMPTING TO HANDLE REQUESTS | |||||||||||||||||||||||||||||||||||||||||||||||||||
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![]() APAR status Closed as program error. Error description WebSphere throws 500 errors when attempting to handle requests WebSphere's plugin marks the application server as down and fail s to handle any future requests to the application server until the applications server is recycled. When looking at trace, onl y one transport thread is being allocated to receive requests a nd the request is never passed to the webcontainer.Local fix Problem summary **************************************************************** * USERS AFFECTED: WebSphere Application Server installations * * handling http requests from clients. * **************************************************************** * PROBLEM DESCRIPTION: WebSphere's pooling of transport * * threads becomes corrupted causing * * user requests to fail with http status * * codes of 500. * **************************************************************** * RECOMMENDATION: * **************************************************************** WebSphere allocates a pool of http transport threads to handle requests. Due to a bug in the freeing of a thread back to the pool, a thread could be added to the list of free threads multiple times. If the thread is added to the list incorrectly, the pool could get corrupted causing WebSphere to not properly allocate threads to handle http requests.Problem conclusion Modified the pooling of threads to not add a thread to the list more than once.Temporary fix Comments
APAR is sysrouted FROM one or more of the following: PQ70202 APAR is sysrouted TO one or more of the following: Modules/Macros
Publications Referenced
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Product categories: Software > Application Servers >
Distributed Application & Web Servers > WebSphere Application
Server > General
Operating system(s):
Software version: 00A
Software edition:
Reference #: PQ70459
IBM Group: Software Group
Modified date: Jan 30, 2003
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