APAR status
Closed as program error.
Error description
There are few thread pools that appear to be abandoned, when traced back the instance of the application that was still running. That pool appears to have been created not by the application, but by the WAS CDI component: Class Name | Shallow Heap | Retained Heap --------------------------------------------------------------- ------------------------------------------------- workers java.util.concurrent.ThreadPoolExecutor @ 0x8155b180 | 80 | 488 '- executorService com.ibm.ws.cdi.impl.weld.ExecutorServicesImpl @ 0x84118358 | 16 | 16 --------------------------------------------------------------- ------------------------------------------------- Looks like ExecutorServicesImpl is creating thread pools with application class loaders as their thread context class loaders
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: All users of IBM WebSphere Application * * Server * **************************************************************** * PROBLEM DESCRIPTION: Memory Leak in Executor Service * **************************************************************** * RECOMMENDATION: * **************************************************************** A memory leek can be seen, when analysing the memory you see that the thread is created by com.ibm.ws.cdi.impl.weld.ExecutorServicesImpl
Problem conclusion
ExecutorServicesImpl was modified to ensure it cleans up its thread pools properly The fix for this APAR is targeted for inclusion in fix pack 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
PH50582
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
2022-11-01
Closed date
2023-04-06
Last modified date
2023-04-06
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
[{"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:
07 April 2023