APAR status
Closed as new function.
Error description
Port Liberty change Better handling of connection error events on free connections #19063 to twas. (https://github.com/OpenLiberty/open-liberty/pull/19063)
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: All users of IBM WebSphere Application * * Server * * using resource adapters with heart beat * * connection health checks. * **************************************************************** * PROBLEM DESCRIPTION: When a connection error event occurs * * from * * a heart beat thread, multithreaded * * access * * to the same connection can occur. * **************************************************************** * RECOMMENDATION: * **************************************************************** Multithreaded access to the same connection can cause connection pool state to report incorrect total connection count values or unexpected behavior while the application is using the connection. Assuming the heart beat thread checking connection and only using connection error event on bad connections, it's likely the application would have experiences error. The main focus of this apar is on the state of the connection pools total connection count.
Problem conclusion
The multithreaded access to the connection pool when using connection error event has been fixed to handle the heart beat connection health check threads that call connection error event without knowing the current usage of the connection. The fix for this APAR is targeted for inclusion in fix pack 8.5.5.24 and 9.0.5.15. For more information, see 'Recommended Updates for WebSphere Application Server': https://www.ibm.com/support/pages/node/715553
Temporary fix
Comments
APAR Information
APAR number
PH47898
Reported component name
WEBSPHERE APP S
Reported component ID
5724J0800
Reported release
850
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2022-07-13
Closed date
2023-03-23
Last modified date
2023-03-23
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
[{"Business Unit":{"code":"BU059","label":"IBM Software w\/o TPS"},"Product":{"code":"SSEQTP","label":"WebSphere Application Server"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"8.5","Line of Business":{"code":"LOB45","label":"Automation"}}]
Document Information
Modified date:
24 March 2023