PQ99045; 5.0.2.9,5.1.0.5,5.1.1.3: "Internal Server
Error" with CacheMonitor
Downloadable files
Abstract
"Internal Server Error" may appear after installing
CacheMonitor or Dynamic Cache
Download Description
PQ99045 resolves the following problem:
ERROR DESCRIPTION:
After installing the CacheMonitor and DynaCacheESI applications on the
server, Cache Monitor shows "Internal Server Error".
In the SystemOut.log, it includes:
[10/28/04 19:06:23:882 PDT] 4f97362 OSEListenerDi E PLGN0021E: Servlet
Request Processor Exception: Virtual Host/WebGroup Not Found:
The web group /_DynaCacheEsi/esiInvalidator has not been defined
PROBLEM SUMMARY:
USERS AFFECTED:
All WebSphere® Application Server users
PROBLEM DESCRIPTION:
Application Server implements java.io.InputStream.read(byte[ ] b, int off,
int len) method. When len is 0, Application Server does not return 0
immediately.
RECOMMENDATION:
Application Server implements java.io.InputStream.read(byte[ ] b, intoff,
int len) method.
Java™ SDK 1.4 and Java SDK1.3 require when len is 0, this method should
return 0. Application Server's implementation fails to do that.
This may cause some performance issues.
PROBLEM CONCLUSION:
Application Server implements java.io.InputStream.read(byte[ ] b, int off,
int len)method. When len is 0, it will now return 0 immediately.
The fix for this APAR is currently targeted for inclusion in fix pack
5.1.1.4.