Limiting the amount of data downloaded

The CICS® IA plug-in limits the data returned from a search or query. You can change this limit using Preferences settings.

To prevent running a query or search that might potentially download too much information from the host to the client PC, the number of resources that are fetched per query or search is limited. To change the limit, click Window>Preferences to open the Preferences view and click CICS Interdependency Analyzer. The default limit is 10000.

A screen shot of the CICS IA plug-in Preferences window that shows the Resource types you can include, that it DB2, IMS, and MQ. Also a 'Maximum number of resources to retrieve' fields and Restore Defaults and Apply buttons.

When the limit is reached, the CICS IA plug-in stops reading any more data from the host and a window is opened at the bottom of the screen. In the screen capture below, for example, the limit is set to 200, which is displayed. The Resources view stops reading any more data after 200 are retrieved. Click Retrieve more to fetch more resources up to the limit. If the limit is set to 200, as in the example below, the query or search pauses again when 400 have been fetched.

A screen shot of the results showing the Resources results when the limit is set to 200.

The speed of the available connection determines the appropriate fetch size limit. As a general rule, make the limit as large as the memory allows without affecting performance.