A transaction group is an association of logically similar transactions. The similarity
can be based on workload management (WLM) or affinity requirements, common shared processing
requirements, or any other user-determined characteristic.
About this task
For workload management, any WLM information you
specify in the transaction group, including the routing algorithm
type, overrides the defaults supplied in the associated workload specification
(WLMSPEC). If you specify alternative WLM attributes in a transaction
group, you can change workload routing characteristics for the associated
transactions dynamically without stopping your routing region.
Procedure
- Click to open the Transaction
group definitions view.
This view displays
a list of existing transaction group definitions. You can create,
update, and remove transaction group definitions, and add a transaction
to a transaction group.
- Optional: To use information from an existing
definition when you create a new definition, select the check box
in the Record column next to the required existing definition.
- Click Create.
- Provide the appropriate information to create your transaction
group definition.
- Click Yes to create the new definition
and add it to the data repository.
The Transaction
group definitions view is displayed again with an entry
for the new definition.
What to do next
If you modify the WLM information for an installed
transaction group, you must discard its associated WLM definition
(WLMDEF) then reinstall it, so that the transaction group named by
the WLM definition is also refreshed. However, if you want to change
the routing algorithm type (the ALGTYPE attribute), you can change
it immediately without discarding and reinstalling the associated
WLMDEF by using the Active workload transaction groups (WLMATGRP)
views and the SET command.