APAR status
Closed as program error.
Error description
WebSocket write thread could spin indefinitely on race condition Needed in tWAS 9.5.0.3 and above and tWAS 9.0.0.11, it basically supercedes PH18898. There is an issue for a hard to hit race condition.
Local fix
N/A
Problem summary
**************************************************************** * USERS AFFECTED: All users of IBM WebSphere Application * * Server * **************************************************************** * PROBLEM DESCRIPTION: WebSocket write thread(s) could * * spin/hang indefinitely on hard to hit * * race condition * **************************************************************** * RECOMMENDATION: * **************************************************************** Threads appear to be hung when doing websocket write calls, this can most easily be seen when looking at a javacore.
Problem conclusion
The race condition was fixed via a simple code addition. The fix for this APAR is targeted for inclusion in fix pack 9.0.5.7. 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
PH30163
Reported component name
WEBS APP SERV N
Reported component ID
5724H8800
Reported release
900
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2020-10-02
Closed date
2020-12-16
Last modified date
2021-01-28
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
WEBS APP SERV N
Fixed component ID
5724H8800
Applicable component levels
R900 PSY
UP
[{"Business Unit":{"code":"BU059","label":"IBM Software w\/o TPS"},"Product":{"code":"SSEQTP","label":"WebSphere Application Server"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"9.0","Line of Business":{"code":"LOB45","label":"Automation"}}]
Document Information
Modified date:
02 November 2021