ENABLE NPCOMM - Teradata Director Program

Teradata® Director Program Reference - 17.20

Deployment
VantageCloud
VantageCore
Edition
Enterprise
IntelliFlex
Lake
VMware
Product
Teradata Director Program
Release Number
17.20
Published
June 2022
Language
English (United States)
Last Update
2023-11-17
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Product Category
Teradata Tools and Utilities

Purpose

The ENABLE NPCOMM command is used to produce messages related to the reasons, the loss, and the resumption of communication for an NP. The DISABLE NPCOMM command may be used to suppress the messages permitted by this command. The DISPLAY TDP command may be used to obtain the current settings.

Syntax



STATUS
Requests that a message be produced if a communication problem requires that communication with the database be restored or initialized.
DETAIL
Requests that messages be produced detailing the communication problem, detailing the affected processing, and indicating when communication has been restored or initialized

Usage Notes

NPCOMM STATUS is enabled by default.

Restoring communication occurs in response to a communication problem from which it may be possible to recover without disrupting requests to, and responses from, the database. If restoring communication fails, then communication is initialized.

Initializing communication occurs when the NP is started, and thereafter in response to a communication problem which cannot be recovered without disrupting requests to, and responses from, the database.

Example: ENABLE NPCOMM

ENABLE NPCOMM DETAIL

Completion Message

The following message indicates successful completion of the command:

TDP0401 NPCOMM DETAIL HAS BEEN ENABLED

Resulting Messages

When NPCOMM STATUS is ENABLEd, one or more of the following messages is produced when communication must be restored or initialized:

TDP3511 "npname" IS WAITING FOR COMMUNICATION TO BE ESTABLISHED
TDP3513 "npname" COMMUNICATION HAS BEEN RE-INITIALIZED
TDP3514 "npname" COMMUNICATION HAS BEEN RESTORED

When NPCOMM DETAIL is ENABLEd, one or more of the following messages is returned when communication must be, or has been, restored or initialized:

TDP3508 NPxxxx direction: COMMUNICATION PROBLEM, "USE REFUSED"
TDP3510 NPxxxx direction: WHEN "ESTABLISHING COMMUNICATION"
TDP3509 NPxxxx direction: FAILED TO RESTORE COMMUNICATION, "NOT OPERATIONAL"
TDP3512 "npname" COMMUNICATION PROBLEM PERSISTS, CURRENTLY RETRIED count TIMES