WebSphere Message Broker, Version 8.0.0.7 Operating Systems: AIX, HP-Itanium, Linux, Solaris, Windows, z/OS

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Resource statistics

Resource statistics are collected by a broker to record performance and operating details of resources that are used by execution groups.

As a system administrator, you can use the resource statistics to ensure that your systems are using the available resources in the most efficient manner. By monitoring systems and analyzing statistical trends, you can keep system resource usage within boundaries that you consider acceptable, and help to pre-empt situations where system resources are overstretched and might become unavailable. Analysis of the data returned potentially requires specialist skills and knowledge of each resource type.

If you detect that system resources are under pressure, you can examine the statistics collected by the broker to assess whether the cause of the concern is the use of those resources by processes in WebSphere® Message Broker.

You must activate statistics collection; by default, collection is not active. If you activate statistics, you might experience a minor degradation in operating performance of the broker or brokers for which you are collecting data. You can collect data on one or more execution groups, as well as all execution groups on a broker, so that you can limit the statistics gathering activity if appropriate.

Resource statistics complement the accounting and statistics data that you can collect on message flows, which are also available in the WebSphere Message Broker Explorer; for details, see Analyzing message flow performance.

To start, stop, or check the status of resource statistics collection, use one or more of the following options:
  • The WebSphere Message Broker Explorer
  • The mqsichangeresourcestats and mqsireportresourcestats commands
  • A CMP application
To view the output that is generated by statistics collection, use one or more of the following options:
  • The WebSphere Message Broker Explorer; numeric data and graphs are displayed for each execution group for which you have activated statistics collection.
  • An application that subscribes to a publication, in the form of an XML message, that is published by the broker every 20 seconds. The message contains the data collected for each execution group for which you have activated statistics collection.

    The topic for each message has the following structure:

    $SYS/Broker/broker_name/ResourceStatistics/execution_group_name

    You can set up subscriptions for a specific execution group on a specific broker. For example:

    $SYS/Broker/MB8BROKER/ResourceStatistics/default

    You can also use wildcards in the subscriptions to broaden the scope of what is returned. For example, to subscribe to reports for all execution groups on all brokers, use the following values:

    $SYS/Broker/+/ResourceStatistics/#

For details of all the statistics that are reported for each resource manager, and the publication content, see Resource statistics data.

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        Last updated: 2016-05-23 14:48:15


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