DDMCNV parameter considerations

 

The DDMCNV parameter is a job-related parameter that controls whether Advanced Program-to-Program Communication (APPC) or iSeries™ conversations in the job that is allocated for DDM use (that is, DDM conversations) are to be automatically dropped or kept active for the source job.

The default is to keep the conversation active.

This parameter can drop a conversation when it has no active users. The conversation is unused when:

1. All the DDM files and remote files used in the conversation are closed and unlocked (deallocated).

2. No other DDM-related functions (like the Submit Remote Command (SBMRMTCMD) command or the Display File Description (DSPFD) command to access the target server) are being done.

3. No DDM-related function has been interrupted (by a break program, for example) while running.

The DDMCNV parameter values are:

*KEEP

Specifies that once each DDM conversation is started for the source job it is kept active at the completion of a source program request, and it waits for another request to be received from the same or another program running in the job. This is the default value.

*DROP

Specifies that each DDM conversation started in the source job is to be automatically dropped when both of the following items are true: no request from the source server program(s) running in the job is being processed in the conversation, and all the DDM files are closed and all objects that were allocated are now deallocated.

The DDMCNV parameter is changed by the Change Job (CHGJOB) command and is displayed by the Work with Job (WRKJOB) command. Also, if the Retrieve Job Attributes (RTVJOBA) command is used, you can get the value of this parameter and use it within a CL program.

 

Parent topic:

DDM-related CL parameter considerations

 

Related concepts

iSeries server as the source server for DDM

 

Related reference

Additional considerations: SBMRMTCMD command
CHGJOB (Change Job) command
WRKJOB (Work with Job) command
Control DDM conversations