Version 7.5.1
 —  Introducing Adabas Parallel Services  —

Restricted Support for Adabas Features

This document describes facilities that are not supported for cluster nuclei running under Adabas Parallel Services or for which restricted support is provided.

The following facilities are supported normally for noncluster nuclei; however, for an Adabas cluster nucleus running in an Adabas Parallel Services environment, the following features are not available and cannot be specified:

The following features are not currently supported for an Adabas cluster nucleus running in an Adabas Parallel Services version 7.4 environment, but will be supported in subsequent versions of the product:

Enhanced error recovery is supported; however, option changes are effective only for the local nucleus. TCP/IP direct links are supported; however, the IP address/port is tied to an individual nucleus.


Triggers and Stored Procedures Facility

The triggers and stored procedures facility (SPT) is fully supported in a cluster environment:

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Limited Distributed Transaction Support

Adabas Parallel Services can in a limited way participate in distributed Adabas transactions coordinated by the Adabas Transaction Manager, as follows:

Full support by cluster databases for distributed transactions will be provided in a subsequent release of Adabas Parallel Services.

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User Table Cleanup

The operator command and AOS function CLUFREEUSER is available for situations where leftover User Table Elements in common storage need to be cleaned up. This function deletes such User Table Elements according to specified criteria.

By default, the cluster nucleus receiving this function deletes all User Table Elements assigned to itself which it does not know of (i.e., for which it has no User Queue Elements). If the GLOBAL option is specified, all User Table Elements are deleted that are assigned to nuclei that are no longer active, or that have no associated User Queue Elements in their assigned nuclei. For more information about the User Table Cleanup, see Maintain the User Table.

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