IT29854: IBM MQ Console chart widgets stop updating

APAR status

• Closed as program error.

Error description

• A user adds some chart widgets for different queue managers to
  their IBM MQ Console dashboard. After running for a period of
  time, the chart widgets for one or more of the queue managers
  stop being updated, even though the IBM MQ Console shows that
  the queue managers are running.
  

Local fix

• Ensure that all users have logged out of the IBM MQ Console.
    - Log into the IBM MQ Appliance.
    - From the mqcli, enter the command:
        mqwebui stop
      This will stop the IBM MQ web server hosting the IBM MQ
  Console
    - Restart the IBM MQ web server, by entering the command:
        mqwebui start
      from the mqcli.
  

Problem summary

• ****************************************************************
  USERS AFFECTED:
  This issue affects users of the IBM MQ Console who have a
  dashboard containing one or more chart widgets associated with
  different queue managers.
  
  
  Platforms affected:
  MultiPlatform
  
  ****************************************************************
  PROBLEM DESCRIPTION:
  Every chart widget that is added to the IBM MQ Console dashboard
  has an internal "com.ibm.mq.ui.collector.ResourceTopic" object
  associated with it. The ResourceTopic object contains
  information about the resource being monitored, such as:
  
  - The name of the queue manager.
  - The topic string for the monitoring topic on the queue manager
  that contains the data.
  - The name of the non-durable subscription on the topic string
  that collects the monitoring data.
  - The JMS Connection and Session used to create the
  subscription.
  - Whether the ResourceTopic is collecting data or not.
  - The last time that data was collected.
  
  The subscription associated with the ResourceTopic is created
  when the chart widget is first added to the dashboard, and
  remains in place until the IBM MQ web server hosting the IBM MQ
  Console is stopped.
  
  Periodically, the IBM MQ Console will perform a "refresh
  operation". As part of this operation, it will look at each
  ResourceTopic object in turn to see if they are collecting any
  data. If it finds a ResourceTopic that is not collecting any
  data, then it will attempt to restart it. This involves
  recreating a new JMS Connection, and non-durable subscription if
  necessary.
  
  
  If a dashboard contained multiple chart widgets for different
  queue managers, and one or more of the queue managers that was
  being monitored became unavailable for some reason, then the
  ResourceTopics associated with the chart widgets for those queue
  managers would be put in a "not collecting" state. The IBM MQ
  Console would then attempt to restart them during the next
  "refresh operation". However, if the attempt to restart a
  ResourceTopic for a chart widget failed (because a JMS
  Connection could not be created to the queue manager, for
  example), then the IBM MQ Console would not attempt to restart
  any of the other ResourceTopics that were also in the "not
  collecting" state.
  
  As a result, these chart widgets associated with this
  ResourceTopic objects would not be updated.
  

Problem conclusion

• The IBM MQ Console has been updated to try and restart all of
  the ResourceTopics that are in a "not collecting" state during
  each "refresh operation".  This means that chart widgets
  associated with ResourceTopics for queue managers that are
  currently running will now be updated as part of each "refresh
  operation".
  
  ---------------------------------------------------------------
  The fix is targeted for delivery in the following PTFs:
  
  Version    Maintenance Level
  v9.1 CD    9.1.4
  v9.1 LTS   9.1.0.4
  
  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 is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

Fix information

• Fixed component name

  IBM MQ BASE MP

• Fixed component ID

  5724H7271

Applicable component levels