Use the resource auto-inference to set context.destination.service.resource for JDBC spans (#1913)

[tobiasstadler]

What does this PR do?

Fixes #1913

Checklist

• This is an enhancement of existing features, or a new feature in existing plugins
  • I have updated CHANGELOG.asciidoc
  • I have added tests that prove my fix is effective or that my feature works
  • Added an API method or config option? Document in which version this will be introduced
  • I have made corresponding changes to the documentation

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• Start Time: 2022-01-28T10:45:56.903+0000

• Duration: 7 min 34 sec

• Commit: e7b6ed0

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[eyalkoren]

Yes, I understood what you requested, but this is what I referred to as a patch.
A real config will probably not be such, but more something like: use_instance_for_db_resource, and it is relevant to all agents, not only Java. We wouldn't want to let make our users think about auto-inference and how it works, but on what this config would change.

So, let us consider that. Maybe we decide to add this as an internal config.

[tobiasstadler]

Ok, so should I change my implementation and just add the instance to context.destination.service.resource in JdbcHelper if the internal config option use_instance_for_db_resource is true?

[tobiasstadler]

@eyalkoren I implemented your suggestion

[eyalkoren]

@tobiasstadler sorry for the long pauses between responses, we are extremely busy these days and I was OOO lately. Let me try pushing elastic/apm#473 forward first, and if we can't get that, we will consider a Java-specific configuration. Normally we try to avoid that, as it make future decisions more complicated.

[tobiasstadler]

Ok, thanks you @eyalkoren

[felixbarny]

@SylvainJuge is working on a concept that plans to use service.target.name and service.target.type from ECS instead.

[tobiasstadler]

@SylvainJuge / @felixbarny Is there any (rough) timeline (you can share) when your concept will be available?

[SylvainJuge]

Hi @tobiasstadler, we aim to start working on this in the next couple of months. As usual any estimate should be taken with a pinch shovel of salt.

Given it involves changing things in multiple projects: all agents, apm-server and apm-ui it's really hard to give you any estimate when it will be available in practice. However, it's something that is an important on a product level, so it is really something that is expected to happen in the short/mid-term time-frame.

[tobiasstadler]

Ok, thank You for the information. I guess I have to wait then.