IMS Connectivity in an On Demand Environment: A Practical Guide to IMS Connectivity

Chapter 11. IMS Connect Extensions 195

At the IMS Connect system, IMS Connect Extensions defines transaction pacing using a

number of controls:

 Interval count

This defines the number of consecutive 20 second intervals that must be exceeded before

IMS Connect Extensions issues warning messages or rejects transactions. This value is

set for the whole of the IMS Connect system and applies to all levels of transaction pacing.

 Warning threshold

At this threshold, IMS Connect Extensions issues a warning message to the IMS Connect

Extensions Log and system console indicating that this threshold level has been

exceeded.

 Reject threshold

At this threshold, IMS Connect Extensions rejects incoming message requests. IMS

Connect Extensions issues a message to the IMS Connect Extensions Log and system

console indicating that maximum pacing rates have been reached.

The SET and REFRESH commands allow the transaction pacing definitions to be altered

dynamically.

11.4 Status Monitor

IMS Connect Extensions is constantly recording statistics about current activity and

processing rates. It collects statistics at the end of every 20 second interval and displays on

the Status Monitor for each IMS Connect system in an overview and detailed format.

Statistics displayed on the screen are delayed by as much as 20 seconds.

The Status Monitor is displayed when you invoke option 4

Status of the IMS Connect

Extensions Primary Options menu. Figure 11-22 shows the Status Monitor panel.

Figure 11-22 Status Monitor panel

The Status Monitor provides an overview of activity for a single IMS Connect system. You

have to specify its name. The Status Monitor has two views:

 System view: To select system information for IMS Connect systems, datastores,

datastore groups, and user exits.

Recommendation: Set pacing thresholds at the most granular level of datastores and

datastore groups rather than for the IMS Connect system. This minimizes the overall

number of incoming message requests that will be rejected.