Fixes are available
APAR status
Closed as program error.
Error description
Using WebSphere MQ V7 on Windows, a queue manager hangs after multiple large FDC files are generated in a loop for different processes with the following information: Probe Id :- XC457000 Component :- xcsRefreshMTime Major Errorcode :- xecU_E_TIME_ERROR The stack trace shows: xcsQueryMTimeFn xcsRefreshMTime xcsFFST The only way to recover from this situation is to restart the Windows system, neither a stop of the queue manager nor a stop of the WebSphere MQ service resolved the problem. The use of the environment variable AMQ_USE_SYSTEM_TIME did not help prevent the hang from reoccurring.
Local fix
LOCAL FIX: none
Problem summary
**************************************************************** USERS AFFECTED: Anyone using a time server to synchronize the time of their queue manager system. Platforms affected: Windows **************************************************************** PROBLEM SUMMARY: The problem was caused by a logic error in the MQ routines responsible for ensuring the accuracy of the current time to microsecond granularity. A change to the system time of a machine caused MQ to be unable to calculate the time to microsecond granularity, but it then began to infinitely loop in this state, producing many large FDC files.
Problem conclusion
The MQ routines responsible for ensuring the accuracy of the current time to microsecond granularity have been altered not to loop when microsecond time cannot be calculated. A single FDC file will still be generated. --------------------------------------------------------------- The fix is targeted for delivery in the following PTFs: v7.0 Platform Fix Pack 7.0.1.9 -------- -------------------- Windows U200337 v7.1 Platform Fix Pack 7.1.0.2 -------- -------------------- Windows 7.1.0.2 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
IC80980
Reported component name
WMQ WINDOWS V7
Reported component ID
5724H7220
Reported release
701
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2012-01-25
Closed date
2012-02-28
Last modified date
2012-02-28
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
WMQ WINDOWS V7
Fixed component ID
5724H7220
Applicable component levels
R701 PSY
UP
[{"Business Unit":{"code":"BU059","label":"IBM Software w\/o TPS"},"Product":{"code":"SSDEZSF","label":"IBM WebSphere MQ Managed File Transfer for z\/OS"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"7.0.1","Edition":"","Line of Business":{"code":"LOB45","label":"Automation"}}]
Document Information
Modified date:
31 March 2023