Fixes are available
8.5.5.3: WebSphere Application Server V8.5.5 Fix Pack 3
8.5.5.4: WebSphere Application Server V8.5.5 Fix Pack 4
8.5.5.5: WebSphere Application Server V8.5.5 Fix Pack 5
8.5.5.6: WebSphere Application Server V8.5.5 Fix Pack 6
8.5.5.7: WebSphere Application Server V8.5.5 Fix Pack 7
8.5.5.8: WebSphere Application Server V8.5.5 Fix Pack 8
8.5.5.9: WebSphere Application Server V8.5.5 Fix Pack 9
8.5.5.10: WebSphere Application Server V8.5.5 Fix Pack 10
8.5.5.11: WebSphere Application Server V8.5.5 Fix Pack 11
8.5.5.12: WebSphere Application Server V8.5.5 Fix Pack 12
8.5.5.13: WebSphere Application Server V8.5.5 Fix Pack 13
8.5.5.14: WebSphere Application Server V8.5.5 Fix Pack 14
8.5.5.15: WebSphere Application Server V8.5.5 Fix Pack 15
8.5.5.14: WebSphere Application Server V8.5.5 Fix Pack 14
8.5.5.17: WebSphere Application Server V8.5.5 Fix Pack 17
8.5.5.20: WebSphere Application Server V8.5.5.20
8.5.5.18: WebSphere Application Server V8.5.5 Fix Pack 18
8.5.5.19: WebSphere Application Server V8.5.5 Fix Pack 19
8.5.5.16: WebSphere Application Server V8.5.5 Fix Pack 16
8.5.5.21: WebSphere Application Server V8.5.5.21
APAR status
Closed as program error.
Error description
Editing, browsing and manipulating EBAs and Composition Units is generally slow.
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: All users of IBM WebSphere Application * * Server OSGi Applications * **************************************************************** * PROBLEM DESCRIPTION: Working with EBAs and Composition * * Units exhibits poor performance and * * long delays. * **************************************************************** * RECOMMENDATION: * **************************************************************** OSGi applications must parse the contents of EBA files for modules, configuration XML etc. when they are manipulated. This takes a long time. Objects created during parsing of the EBAs are not cached, but are often needed repeatedly while manipulating and working with EBAs and Compsition Units. The operations are also performed on a single thread.
Problem conclusion
This APAR introduces two new JVM custom properties. When not set there is no change in behaviour. com.ibm.ws.eba.bla.proxies.archiveCacheSize (default 0, minimum 0, maximum 10000) - this property controls the size of a cache that is used for Archive objects parsed from an EBA. If an Archive is created, and the cache size is greater than 0, it may be cached so that it can later be reused. Typically a cache size of 500 is sufficient. The cache is a soft cache and so its efficiency is affected by the amount of free heap space. com.ibm.ws.eba.bla.concurrency (default 1, minimum 1, maximum 8) - this property controls the concurrency with which steps during the manipulation of EBAs might be performed. Typically, increasing this number from the default 1 will only have performance improvements if com.ibm.ws.eba.bla.proxies.archiveCacheSize is also set, and the EBAs being manipulated are sufficicently large in terms of the number of bundles. Increasing the concurrency does not result in linear performance improvement because each thread requires its own Archive which is expensive to create. Consequently, a concurrency of two often offers the optimum performance. The fix for this APAR is currently targeted for inclusion in fix pack 8.5.5.3. Please refer to the Recommended Updates page for delivery information: http://www.ibm.com/support/docview.wss?rs=180&uid=swg27004980
Temporary fix
Comments
APAR Information
APAR number
PI10107
Reported component name
WEBSPHERE APP S
Reported component ID
5724J0800
Reported release
850
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2014-01-22
Closed date
2014-03-28
Last modified date
2014-05-23
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
Fix information
Fixed component name
WEBSPHERE APP S
Fixed component ID
5724J0800
Applicable component levels
R850 PSY
UP
Document Information
Modified date:
28 April 2022