Collect troubleshooting data for a Publish and Subscribe problem in WebSphere MQ for i5/OS

Technote (troubleshooting)


Problem(Abstract)

You are experiencing a Publish / Subscribe (PubSub Pub/Sub) problem in WebSphere MQ for i5/OS. You would like to know what documentation you must collect (MustGather) so that the WebSphere MQ Support team can diagnose your problem. If you gather this documentation before contacting support it will expedite the troubleshooting process, and save you time.

NOTE: Any reference within this document to OS/400 can be read as being equally applicable to iSeries or i5/OS.

Resolving the problem

Gather this MustGather data before contacting IBM Support:

Collecting general data for all problems
Collecting troubleshooting data for this problem
Troubleshooting hints and tips
Exchanging data with IBM Support

Go back to: WebSphere MQ (MustGather) Read First

Collecting general data for all problems

A complete description of the problem, including the following:

  • WebSphere MQ version, release, and maintenance level
  • Operating system version, release, and maintenance level
  • Related products version, and release levels if applicable

Collecting troubleshooting data for this problem

Required (MustGather) data:

For WMQ v6 ( See below for WMQ v7)


For WMQ v7 ( See above for WMQ v6)
  • WebSphere MQ for OS/400 documentation collection package
  • This information will be used to verify your subscriptions. Use STRSEU to create a source physical file member.
    1. CRTSRCPF FILE(QGPL/QMQSC) MBR(PUBSUB) TEXT('Websphere MQ').
    2. STRSEU SRCFILE(QGPL/QMQSC) SRCMBR(PUBSUB) OPTION(2).
    3. Now you can add the MQSC script commands.
      • DISPLAY TOPIC(*) ALL
      • DISPLAY SUB(*) ALL
      • DISPLAY SBSTATUS(*) ALL
      • DISPLAY PUBSUB TYPE(ALL) ALL Use the line option command I(insert) to add additional lines. If you are not familiar with SEU press the HELP or F1 to review the online help information.
    4. Once the MQSC commands have been added, Press the F3 key to EXIT.
    5. Next, press Enter to save the member.
    6. To execute the script for a particular queue manager use the STRMQMMQSCcommand. Example: STRMQMMQSC SRCMBR(PUBSUB) SRCFILE(QGPL/QMQSC) MQMNAME(<QMGR_NAME>).
    7. A QSYSPRT spoolfile will be generated. To view the spoolfile, use the WRKSPLF command, and select the spoolfile by using option 5 (Display).
  • The amqldmpa dump tool captures other information about subscriptions:
    1. From the command line, type QSH (QShell)
    2. Type, touch /tmp/topic.dump to create dump file
    3. Type, /qsys.lib/qmqm.lib/amqldmpa.pgm -m <queue_manager> -c t -f /tmp/topic.dump
      NOTE: where <queue_manager> is your queue manager name and /tmp/topic.dump is the path and file name you select to use for the output file.

Optional (MustGather) data:

Troubleshooting hints and tips


Learn more about this component
Exchanging data with IBM Support

If you need to speak to an IBM technical support representative call your country representative. If you need to speak to an IBM technical support representative in the US call 1-800-IBM-SERV.

Keywords: publish subscribe pub sub pubsub pub/sub publish/subscribe

Cross reference information
Segment Product Component Platform Version Edition
Business Integration WebSphere MQ Documentation i5/OS, OS/400 7.1, 7.0.1, 6.0 All Editions

Product Alias/Synonym

WMQ MQ MQSeries

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Document information


More support for:

WebSphere MQ
PubSub

Software version:

6.0, 6.0.1, 6.0.2, 7.0, 7.0.1, 7.1

Operating system(s):

IBM i, OS/400, i5/OS

Software edition:

All Editions

Reference #:

1568661

Modified date:

2013-09-25

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