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HP NonStop Shadowbase Command Definitions

Consumer Command Descriptions

HP NonStop Shadowbase Command Reference Manual—785421-002

174

has generally been replaced by the use of the RESOLVETRANS

parameter. Extended Consumers should not be used unless

directed by HP Shadowbase Support.

Specifies whether Consumer is a basic or an extended type. BASIC

Consumers are the main Consumer processes for which DBS

Specifications are added (see Section 0 - Database Specification

Command Descriptions for more information). EXTENDED Consumers

are those that are attached, via the BASICCONSNAME parameter, to a

previously defined and added basic Consumer. They are responsible for

the same files/tables as the basic Consumer to which they relate. The

basic and related extended Consumers can be seen as a common

process, although they are multiple processes. They can be used to get

past an OS imposed limitation of 100 or 1000 simultaneous transactions

per process (see the TMFTRANS parameter for more details as this mode

generally makes the BASIC/EXTENDED Consumer mode obsolete).

Unless there is a requirement that the target data be written to the

files/tables in the precise order that the application (source) files/tables

were written to, the recommended CONTROLTYPE for an extended

environment is PARALLEL. If CONTROLTYPE is set to SERIAL, data will

be written into individual files/tables in the original sequence. The default

is BASIC.

Note: If you have multiple files/tables (fileset) being updated within one

transaction by an application(s), this fileset should all be attached to

the same Consumer. You can configure basic and related

extended Consumers to process this fileset. The CONTROLTYPE

is set to SERIAL to ensure that modifications to the target database

are processed in the same order as they were in the source

database. This may be important for some applications that use

the target database especially those that are time oriented.

USEREXITCOLCHECK { ON }

{ OFF }

Initial Changed

Version Version Values Default Minimum Maximum Alter

3.980C ON OFF ON No

Client Server Extended Open Target

The Consumer process requires column names for “get’s” and “put’s” to

be in upper case with “_” (underscore) characters instead of “-“ (hyphen)

characters. By default, the API functions will up-shift all lower case

characters and replace all hyphen characters with underscores

characters. This requires a scan of the column name. If your user exit

code uses all upper case column names with underscore characters, you

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