STREAMMGRDELAY

The STREAMMGRDELAY parameter is used to delay change stream assignment for subscriptions to allow multiple subscriptions to use the same change stream.

Description

STREAMMGRDELAY is an optional parameter that controls how long the capture service waits to assign a subscription to a change stream.

If your environment has one subscription, you should use the default and not wait for change stream assignment because no grouping occurs. Also, if your environment contains only VSAM subscriptions you should use the default because VSAM uses a change stream per subscription and no grouping occurs.

The drawback is a longer delay on restarts.

For more detail, see Best practices.

A recommended value is 1M, but you must evaluate the results in your environment. With a higher number of subscriptions, it will take longer to retrieve bookmark information at restart and a longer delay might be needed. The goal is to restart all subscriptions on the primary change stream if possible.

Specifications

Use: Configuration parameter for the capture service.

Service class: CAP

Service task: CECCAP

Data type: TIME

Default: 0H

Valid values:
nMS
n milliseconds
nS
n seconds
nM
n minutes
nH
n hours