Service Templates – How to control on which Agent to create Service

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Hello all

I have a cluster of 4 dataminers, when applying a service template almost all services are created on the same Dataminer Agent (3), is there a way of controlling on which Dataminer to create the service when applying the service template ?

I thougth it migth be related to which one i was connected with Cube but I tried from Cube connected for example to Dataminer 1 but it still service gets created on 3.

How are the services assigned by Dataminer ?

Thanks a lot

Tiago Pinhao [SLC] [DevOps Enabler] Selected answer as best 1st February 2023

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I believe by default the hosting agent is automatically determined based on the elements included in the service.

Via the service template CSV file, you can assign an agent by adding a “forceDMA” column with the id of the agent.

In case the service is programmatically created via a 'TryCreateServiceMessage', this can be passed via an ExtraData array property. Add a TCSExtraData object in there with Name=”forceDMA” and Value=[dma id].

Wouter Demuynck [SLC] [DevOps Enabler] Posted new comment 2nd February 2023
Tiago Pinhao [SLC] [DevOps Enabler] commented

Thanks a lot for the clarification
Wouter Demuynck [SLC] [DevOps Enabler] commented

As additional info: when not using “forceDMA”, the hosting agent for a generated service is a decision based on where the majority of child elements/services live. Reasoning there is to limit the amount of inter-agent traffic of child elements bubbling up state to the parent service.