PQ71648: DOC APAR TO DESCRIBE SYNTAX AND BEHAVIOR OF INVOCATIONCACHESIZE PARAMETER FOR WEBSPHERE APPLICATION SERVER FOR Z/OS V4.01 | |||||||||||||||||||||||||
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APAR status Closed as documentation error. Error description Currently there is no documentation to describe the syntax and the behavior of the parameter invocationCacheSize.Local fix Problem summary **************************************************************** * USERS AFFECTED: All users of WebSphere Application Server * * V4.0.1 for z/OS and OS/390 * * * **************************************************************** * PROBLEM DESCRIPTION: Appendix A of "WebSphere Application * * Server V4.0.1 forz/OS and OS/390 does * * not include a description of the * * invocationCacheSize JVM property. * * * **************************************************************** * RECOMMENDATION: * **************************************************************** The sections "JVM property use" and " Properties descriptions in Appendix A of "WebSphere Application Server V4.0.1 for z/OS and OS/390: Assembling J2EE Applications" does not include a description of the invocationCacheSize JVM property.Problem conclusion The following information will be added to Appendix A of "WebSphere Application Server V4.0.1 for z/OS and OS/390: Assembling J2EE Applications," SA22-7836: 1. Table 24 will be updated to include the invocationCacheSize property, along with an indication that it applies to a J2EE server instance. 2. The following information will be added to the section "Properties descriptions: invocationCacheSize=<size of the cache> The invocation cache holds information for mapping request URLs to servlet resources. A cache of the requested size is created for each worker thread that is available to process a request. The number of worker threads is determined by the value specified for the BBOO_WORKLOAD_PROFILE environment variable If more than 50 unique URLs (JSPs) are actively being used, you should increase this parameter. Increasing this paramete enables a cached object to be used. This avoids the need to create a new java object, and results in improved performanc Note: A larger cache uses more of the Java heap, so you migh need to increase maximum Java heap size. For example, if eac cache entry requires 2KB, maximum number of worker threads size is set to 25, and the URL invocation cache size is 100, you must allow for 5MB of heap storage that will be dedicate to this cache and inaccessible by the application. NOTE: Periodically, we refresh the documentation on our Web site so the changes might have been made before youread this text. To access the latest on-line documentation, go to the product library page at: http://www.ibm.com/software/webservers/appserv/zos_os390/ library.htmlTemporary fix Comments
APAR is sysrouted FROM one or more of the following: APAR is sysrouted TO one or more of the following: Modules/Macros
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Document Information |
Product categories: Software > Application Servers >
Distributed Application & Web Servers > WebSphere Application
Server for z/OS
Operating system(s):
Software version: 401
Software edition:
Reference #: PQ71648
IBM Group: Software Group
Modified date: Jun 18, 2003
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