APAR status
Closed as program error.
Error description
MQ processes or services(e.g. AMQP) intermittently fail to connect to the QM causing unexpected failures(e.g. termination of process and/or service), one or more failure data capture files are generated prior to failures, with identifying characteristics as follows: * FDCs with Probe Ids XC501006 and XC015003 * MQ services(e.g. AMQP) if running and affected might terminate unexpectedly Probeid: XC501006 Component name: xlsThreadPreInitialization Error: xecS_E_INVALID_HQCB. FDC Summary: 2019/12/26 11:02:24.377489 amqrmppa 9780 10 XC015003 xcsFreeQuickCell xecL_E_INVALID_HANDLE 2019/12/26 11:02:24.383503 amqrmppa 9780 10 XC501006 xlsThreadPreInitialization xecS_E_INVALID_HQCB 2019/12/26 11:02:24.390367 amqrmppa 9780 10 XC015003 xcsFreeQuickCell xecL_E_INVALID_HANDLE 2019/12/26 11:02:24.397458 amqrmppa 9780 10 XC501006 xlsThreadPreInitialization xecS_E_INVALID_HQCB 2019/12/26 11:02:24.403949 amqrmppa 9780 10 XC501006 xlsThreadPreInitialization xecS_E_INVALID_HQCB 2019/12/26 11:02:38.789683 amqrmppa 9780 11 XC501006 xlsThreadPreInitialization xecS_E_INVALID_HQCB QM Error message: 12/26/2019 11:08:42 AM - Process(9780.10) User(mqm) Program(amqrmppa) Host(host1) Installation(Installation1) VRMF(8.0.0.4) QMgr(QM1) AMQ9508: Program cannot connect to the queue manager. EXPLANATION: The connection attempt to queue manager 'QM1 failed with reason code 2195. ACTION: Ensure that the queue manager is available and operational.
Local fix
Problem summary
**************************************************************** USERS AFFECTED: Users using AMQP service. Platforms affected: MultiPlatform **************************************************************** PROBLEM DESCRIPTION: The workload pattern of the AMQP listener within the MQ queue manager could cause an internal variable to overflow over time. Such an overflow caused unexpected failures and resulted in the abnormal termination of the AMQP service.
Problem conclusion
The MQ queue manager has been updated, such that the logic handling this variable prevents the overflow. --------------------------------------------------------------- The fix is targeted for delivery in the following PTFs: Version Maintenance Level v8.0 8.0.0.8 v9.0 LTS 9.0.0.2 The latest available maintenance can be obtained from 'WebSphere MQ Recommended Fixes' http://www-1.ibm.com/support/docview.wss?rs=171&uid=swg27006037 If the maintenance level is not yet available information on its planned availability can be found in 'WebSphere MQ Planned Maintenance Release Dates' http://www-1.ibm.com/support/docview.wss?rs=171&uid=swg27006309 ---------------------------------------------------------------
Temporary fix
Comments
APAR Information
APAR number
IT21151
Reported component name
WMQ BASE MULTIP
Reported component ID
5724H7251
Reported release
800
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2017-06-23
Closed date
2017-07-17
Last modified date
2020-01-13
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
WMQ BASE MULTIP
Fixed component ID
5724H7251
Applicable component levels
[{"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SSYHRD","label":"IBM MQ"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"8.0.0.0","Edition":"","Line of Business":{"code":"LOB45","label":"Automation"}}]
Document Information
Modified date:
13 January 2020