Manual Servce Map with load balancer

[Amar_Be]

Hi,

I need to manually build the service map of an Application Service using a load balancer (F5-BIG-IP).

I'm trying to reproduce the exemple provided in the Servicenow training ;

An application service, with a load balancer entry point  and 3 tomcats in cluster with impact relations of type 'Application cluster member'

In my test service, I've added the load balancer as entry point, then from the service map added the tomcats. But I can not add the Application Cluster in the map. And the impact relation between my tomcats and loadbalancer is not of type "cluster".

My problem is that Discovery and Service Mapping are not able to discover the load balancer. We have to add it manually to the service map.

So, I'm asking if there is a way to manually create a service map of a load balanced service.

If yes, what am I missing to have a clustered impact of the tomcats on the service?

Thank you for your time and answers.

[James Hammond]

Hello @Amar_Be

I can see where you're coming from, but you will encounter these problems trying replicate the cluster setup without being able to discover the relevant sections of the load balancer.

The application cluster you can see in the example is actually a record on the cmdb_ci_application_cluster table that is constructed from the Load Balancer Services found during Discovery, I would suggest using the demo data within your PDI as an example to help you construct the right cluster setup for your application. 

[Prabu Velayutha]

Hi Amar,

Yes, you can manually add nodes to Service Map. Do you have Tomact application CIs discovered and classified in the respective class or you the sample data of those CIs? If you have the CI data you can add it. Try Add a CI on the load balancer node and select the CI type to add.

[Amar_Be]

Thank you for your answers.

I've seen the application cluster CI but, from the service map, I'm not able to add a CI of this type.

I've also tried to add it in the dependency map that update the service with with change from the CMDB, but without success.

I'm trying to do it manually because our discovery is failing (for some internal reason) and cannot discover correctly all the items. SO, if I can reproduce the result of the Service Mapping top-down discovery we can bypass the fail of the discovery process.