PK03907; 4.0.5: Invalidation need to be moved to jsp/servlet destroy method
 Downloadable files
 
Abstract
Invalidation need to be moved to JSP/Servlet destroy method when application shares cache across clones.
 
Download Description
PK03907 resolves the following problem:

ERROR DESCRIPTION:
While processing the jsp initialization Dynamic Cache sends out an invalidateByTemplate to each server's cache to remove any potential old copies of this jsp. Once the init methods for the jsp has been called on each server this invalidationByTemplate will not get called on any subsequent requests.

PROBLEM SUMMARY:

USERS AFFECTED:
Dynamic Cache users using servlet caching in a multiserver environment.

PROBLEM DESCRIPTION:
While processing the servlet/jsp initialization Dynamic Cache sends out an invalidation by template to each server's cache to remove any potential old copies of this servlet or jsp. This can cause unnecessary invalidations in a clustered environment.

RECOMMENDATION:
Template invalidation needs to be moved from servlet/jsp initialization method to the destroy method.

PROBLEM CONCLUSION:
Moved the invalidation by templates from the servlet/jsp initialization method to the destroy method to eliminate the unnecessary in-validation that can occur when the fragment is requested for the first time.
 
Prerequisites
NONE
 
 
Installation instructions
Please review the readme.txt for detailed installation instructions.
 
URL LANGUAGE SIZE(Bytes)
Readme US English 2260
 
Download package
What is DD?
DOWNLOAD RELEASE DATE LANGUAGE SIZE(Bytes) Download Options
PK03907_Fix 5/10/2005 US English 1052125 FTP DD
 
Technical support
1-800-IBM-SERV (U.S. Only)
 
Problems (APARs) fixed
PK03907
 
 


Document Information


Product categories: Software > Application Servers > Distributed Application & Web Servers > WebSphere Application Server > Dynamic Cache
Operating system(s): HP-UX
Software version: 4.0.5
Software edition:
Reference #: 4009602
IBM Group: Software Group
Modified date: May 10, 2005