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Application Service (cmdb_ci_service_discovered vs. cmdb_ci_service)

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J Shone
Tera Expert

‎04-20-2020 06:26 AM

Looking at the white paper I am a little confused on Application Service.

 

Application Service is defined as "Logical representation of a deployed application stack"

It maps to cmdb_ci_service_discovered and the white paper does not mention cmdb_ci_service (classification=application).

That said the PDI examples of Application Service are using cmdb_ci_service.  And the service classification is available on cmdb_ci_service for Application Service.

What are ServiceNow saying or what is your real-world experience?

If you haven't enabled Discovery do you use cmdb_ci_service (classification=application)?  

Once you enable discovery do you convert to use cmdb_ci_service_discovered?  

Or are both tables meant to be used in parallel?

 

 

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Giles Lewis
Giga Guru

‎04-20-2020 06:49 AM

Great question!

cmdb_ci_service_discovered is a legacy table that was created several years ago as part of the Service Mapping product. When CSDM was introduced they decided to repurpose the existing table. You are supposed to ignore the fact that "discovered" is part of the name, and feel free to manually populate the Application Service table. (I am not sure what happens later if you decide to install Service Mapping; but I assume they have figured this out and there are no worries.)

Note that in the class model cmdb_ci_service_discovered inherits from cmdb_ci_service. If you add a record to Application Service [cmdb_ci_service_discovered] then it is automatically added to Business Service [cmdb_ci_service]. You can also convert a Business Service to an Application Service.

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Les1
Tera Guru
In response to Alec Hanson

‎11-18-2021 10:47 AM

additional detail, we're on Quebec

 

we found that this PRB fix is still not fixed in our Quebec instance:

Configuration Management Database (CMDB)

PRB1411702

Two cmdb_ci_service tables (_auto and _discovered) share the same display name 'Application Service'Two separate application service tables share the same displayed label of 'Application Service', whereas the cmdb_ci_service_ discovered table should be showing 'Mapped Application Service'.
  1. Navigate to the Tables module.
  2. Search for tables with a name starting with 'cmdb_ci_service_'.

Notice that both cmdb_ci_service_auto and cmdb_ci_service_discovered have the label 'Application Service'. If you search these same results for the label = 'Mapped Application Service', cmdb_ci_service_ discovered will come back as a result even though the label column shows 'Application Service' due to getDisplayValue().

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