APAR status
Closed as program error.
Error description
MQTT server fails to publish a 'last will and testament' (LWT) message to subscribers when client loses connectivity. The following errors may be observed in mqxr.log: AMQXR0021W: Client ''XYZ'' at network address ''/1.2.3.4'' disconnected abnormally Messages would be stored in SYSTEM.MQTT.PERSISTENT.STATE queue and processed when the connection is restored.
Local fix
Problem summary
**************************************************************** USERS AFFECTED: This issue affects users specifying last will and testament messages while connecting MQTT clients to queue managers. Platforms affected: MultiPlatform **************************************************************** PROBLEM DESCRIPTION: A last will and testament message specified when connecting a MQTT client to a queue manager was not sent to the specified topic if that client's connection was unexpectedly broken. The message remained on the SYSTEM.MQTT.PERSISTENT.STATE queue.
Problem conclusion
Any last will and testament message specified when a MQTT client connects is now sent to the specified topic if that client's connection breaks unexpectedly. --------------------------------------------------------------- The fix is targeted for delivery in the following PTFs: Version Maintenance Level v7.5 7.5.0.9 v8.0 8.0.0.8 v9.0 CD 9.0.4 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
IT17751
Reported component name
WMQ BASE MULTIP
Reported component ID
5724H7241
Reported release
750
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2016-10-31
Closed date
2017-06-25
Last modified date
2017-06-25
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
5724H7241
Applicable component levels
[{"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":"7.5","Edition":"","Line of Business":{"code":"LOB45","label":"Automation"}}]
Document Information
Modified date:
31 March 2023