Fixes are available
9.0.0.8: WebSphere Application Server traditional V9.0 Fix Pack 8
9.0.0.9: WebSphere Application Server traditional V9.0 Fix Pack 9
9.0.0.10: WebSphere Application Server traditional V9.0 Fix Pack 10
9.0.0.11: WebSphere Application Server traditional V9.0 Fix Pack 11
9.0.5.0: WebSphere Application Server traditional Version 9.0.5 Refresh Pack
9.0.5.1: WebSphere Application Server traditional Version 9.0.5 Fix Pack 1
9.0.5.2: WebSphere Application Server traditional Version 9.0.5 Fix Pack 2
9.0.5.3: WebSphere Application Server traditional Version 9.0.5 Fix Pack 3
9.0.5.4: WebSphere Application Server traditional Version 9.0.5 Fix Pack 4
9.0.5.5: WebSphere Application Server traditional Version 9.0.5 Fix Pack 5
WebSphere Application Server traditional 9.0.5.6
9.0.5.7: WebSphere Application Server traditional Version 9.0.5 Fix Pack 7
9.0.5.8: WebSphere Application Server traditional Version 9.0.5.8
9.0.5.9: WebSphere Application Server traditional Version 9.0.5.9
9.0.5.10: WebSphere Application Server traditional Version 9.0.5.10
9.0.5.11: WebSphere Application Server traditional Version 9.0.5.11
APAR status
Closed as program error.
Error description
Session Affinity can be broken and result in erroneous 503s when multiple editions of a single application are simultaneously active.
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: All users of IBM WebSphere Application * * Server WAS ND edition (Virtual * * Enterprise/IM Component) that leverage the * * On-Demand Router. * **************************************************************** * PROBLEM DESCRIPTION: Session affinity is broken when * * multiple editions of a single * * application are simultaneously active. * **************************************************************** * RECOMMENDATION: * **************************************************************** When routing affinity requests through the On-Demand Router (ODR) in environment with multiple editions of a single application simultaneously active session affinity is lost resulting in 503 http status codes.
Problem conclusion
The On-Demand Router (ODR) logic has been corrected to properly maintain affinity when multiple editions of the same application are present and active. The fix for this APAR is currently targeted for inclusion in fix packs 8.5.5.14 and 9.0.0.8. 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
PI93374
Reported component name
WEBSPHERE FOR Z
Reported component ID
5655I3500
Reported release
850
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2018-02-05
Closed date
2018-05-14
Last modified date
2018-05-14
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 FOR Z
Fixed component ID
5655I3500
Applicable component levels
R850 PSY
UP
Document Information
Modified date:
04 May 2022