Miscellaneous Notes - Call-Level Interface Version 2

Teradata Call-Level Interface Version 2 Reference for Mainframe-Attached Systems

Product
Call-Level Interface Version 2
Release Number
16.10
Published
May 2017
Language
English (United States)
Last Update
2018-05-07
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B035-2417
lifecycle
previous
Product Category
Teradata Tools and Utilities

Open-requests is a count of requests that have not been ended. These requests do not necessarily still have spool files.

As long as the application keeps Open-requests less than or equal to 16, the number of spool files on the Teradata Database will be less than or equal to 16.

The Teradata Database allows no more than 16 spool files at one time per session.

For optimal performance, the application should operate so that Open-requests is no more than 16.

You should program your applications to close requests explicitly with a call to DBCHCL for the End Request function as soon as the response generated by the request is no longer needed.

DBCHCL updates Open-requests in the DBCAREA as soon as DBCHCL is called for a request-generating function.

Open-requests is available after the application regains control from DBCHCL, even for a connect operation.