APAR status
Closed as program error.
Error description
Some unknown application sent a message to the queue server. The message had some garbage content. The queue server reported an FDC complaining about IPC problems. It was then rendered inoperable. A restart of the queue server solved the problem.
Local fix
NA
Problem summary
If the Queueserver processes a random message, which passed the message check, the Queueserver can become unresponsive. That can happen when a process (a customer application for instance) accidentally opens the Queueserver and sends an application message. The garbage message has not been stored in the filesystem. A root cause analysis is then no longer possible. If the message content were present, this can help to identify the application that sent the message.
Problem conclusion
The Queueserver creates an FDC and dumps the message content if the message check identified a garbage message. If a follow up garbage message passes the message check and makes the Queuserver unresponsive, there are at least FDCs containing formerly received garbage messages. Their content enables the user to identify the application which sent the garbage message.
Temporary fix
There is no workaround for this problem.
Comments
APAR Information
APAR number
IT28065
Reported component name
WEBS MQ NSS MIP
Reported component ID
5724A3901
Reported release
531
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2019-02-11
Closed date
2019-07-30
Last modified date
2019-07-30
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 MQ NSS MIP
Fixed component ID
5724A3901
Applicable component levels
[{"Business Unit":{"code":"BU059","label":"IBM Software w\/o TPS"},"Product":{"code":"SSFKSJ","label":"WebSphere MQ"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"5.3.1","Edition":"","Line of Business":{"code":"LOB45","label":"Automation"}}]
Document Information
Modified date:
31 March 2023