APAR status
Closed as program error.
Error description
An MQ channel will not connect and DISPLAY CHS shows the channel in STATUS(INITIALIZING). The amqrmppa process issues initial failure data capture (FDC) file with a Probeid XC130003. Subsequent FDC files are issued with the following pattern: amqrmppa 42240 33 XC130003 xehExceptionHandler STOP amqrmppa 42240 33 RM042101 rrxReportError STOP amqzxma0 80262 1 ZX005022 zxcProcessChildren lrcW_S_FAST_PATH_APP_DEAD This FDC pattern repeats as channel attempts to start. These external symptoms are same as APAR IT12477 but the underlying root cause is different to that APAR.
Local fix
Disable the message suppression function to prevent this scenario. Unset the following environment variables to disable the message suppression function: MQ_CHANNEL_SUPPRESS_MSGS MQ_CHANNEL_SUPPRESS_INTERVAL
Problem summary
**************************************************************** USERS AFFECTED: Users using channels and queue managers configured to suppress error messages. Platforms affected: MultiPlatform **************************************************************** PROBLEM DESCRIPTION: A coding error meant that it was possible for the channel process to access an uninitialized internal channel attribute used when suppressing messages. This in turn caused a memory exception when attempting to suppress error messages.
Problem conclusion
The MQ queue manager channel code has been updated to add a new check to prevent the memory exception. Another APAR fixed in this area was IT12477 and it is recommended to apply the fix for both IT15599 and IT12477 if these symptoms are observed. --------------------------------------------------------------- The fix is targeted for delivery in the following PTFs: Version Maintenance Level v8.0 8.0.0.6 v9.0 CD 9.0.2 v9.0 LTS 9.0.0.1 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
IT15599
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
2016-06-06
Closed date
2016-07-28
Last modified date
2017-06-01
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
R800 PSY
UP
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Document Information
Modified date:
01 June 2017