APAR status
Closed as program error.
Error description
The WebSphere Servant or Adjunct Region does not come down quickly after a 5C6 abend if there are threads waiting for work from WLM that can not be interrupted by a signal.
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: All users of IBM WebSphere Application * * Server V9.0 for z/OS * **************************************************************** * PROBLEM DESCRIPTION: The WebSphere servant or adjunct * * region does not come down quickly * * after a ABEND5C6/ABENDS5C6 if there * * are threads waiting for work from WLM. * **************************************************************** * RECOMMENDATION: * **************************************************************** The WebSphere servant or adjunct region does not come down quickly after a 5C6 abend or a call to exit if there are threads waiting for work from WLM. The threads that are waiting for work from WLM can not be interrupted by a signal until they return from WLM. The servant region does not come down until enough work requests come in to release all the threads waiting for work from WLM.
Problem conclusion
The code was updated to abend the servant region main with ABENDEC3/ABENDSEC3 reason code 04020019 when the atexit routine detects that threads are still active. A new custom property servant_region_suppress_hung_thread_abend has been added. The default is 0 which causes the servant region main to be abended when active threads are detected by the atexit routine. If you set this property to 1, the atexit routine does not abend the servant region main. To set servant_region_suppress_hung_thread_abend using the admin console you can use Servers > Server Types > WebSphere application servers > select the server > Server Infrastructure > Administration > Custom properties > new or Environment > WebSphere variables > select scope > New The fix for this APAR is targeted for inclusion in fix pack 8.5.5.20 and 9.0.5.8. 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
PH35522
Reported component name
WEBSPHERE FOR Z
Reported component ID
5655I3500
Reported release
900
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2021-03-18
Closed date
2021-04-27
Last modified date
2021-04-27
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
[{"Line of Business":{"code":"LOB45","label":"Automation"},"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SS7K4U","label":"WebSphere Application Server for z\/OS"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"900"}]
Document Information
Modified date:
28 April 2021