Home

 

ClusterSenderStatistics (MQLONG)

Because cluster sender channels can be automatically defined from the definition of CLUSRCVR in the repository, we cannot alter the setting of the STATCHL attribute for these auto-defined cluster sender channels using ALTER channel. For these channels the decision of whether to collect online monitoring data is based on the setting of this queue manager attribute.

The value is one of the following:

MQMON_Q_MGR

Statistics data collection for auto-defined cluster sender channels is based on the value of the queue manager attribute STATCHL. This is the default value.

MQMON_OFF

Switch off statistics data collection for auto-defined cluster sender channels.

MQMON_LOW

Switch on statistics data collection for auto-defined cluster sender channels with a low ratio of data collection.

MQMON_MEDIUM

Switch on statistics data collection for auto-defined cluster sender channels with a moderate ratio of data collection.

MQMON_HIGH

Switch on statistics data collection for auto-defined cluster sender channels with a high ratio of data collection.

For most systems we recommend MEDIUM. However, for an auto-defined cluster sender channel that processes a high volume of messages each second, you might want to reduce the sampling level by selecting LOW. Also, for a channel that processes only a few messages, and for which the most current information is important, you might want to select HIGH.

To determine the value of this attribute, use the MQIA_STATISTICS_AUTO_CLUSSDR selector with the MQINQ call.

 

Home