APAR status |
Closed as program error.
| Error description
There is a performance problem with the classloader where
EJB Dependent Classpath classloader does not appear to
cache the classes that have already been loaded.
.
This is defect 130592 in WAS code library. Local fixProblem summary
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* USERS AFFECTED: WebSphere Application Server users with a *
* dependent classpath and EJBs installed or *
* who use JSPs with jsp:usebean tag *
****************************************************************
* PROBLEM DESCRIPTION: EJB ClassLoader incorrectly added *
* duplicated paths, causing performance *
* degradation. *
****************************************************************
* RECOMMENDATION: *
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The dependent classpath for a node was repeatedly added into the
EJB ClassLoader resulting in a significant performance
degradation proportional to the size of the dependent classpath
and number of EJBs installed. Symptoms of the problem include
excessive disk I/O and slow loading of classes and resources.
This also contains a fix for the Web Application classloader to
short circuit the search for unfound resources. Problem conclusion
EJB ClassLoader was modified to eliminate duplicate paths.
Servlet classloader was modified to short circuit the search
for resources that were previously not found. Temporary fixComments
APAR information | APAR number | PQ61304 | Reported component name | WAS ADVANCED AI | Reported component ID | 5648C8400 | Reported release | 350 | Status | CLOSED PER | PE | NoPE | HIPER | NoHIPER | Submitted date | 2002-05-17 | Closed date | 2002-05-21 | Last modified date | 2003-08-28 |
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:APAR is sysrouted FROM one or more of the following:
Modules/Macros APAR is sysrouted TO one or more of the following:Modules/Macros
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Fix information |
Fixed component name | WAS ADVANCED AI | Fixed component ID | 5648C8400 |
Applicable component levels | R350 PSY | UP |
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