Making six more metrics from MySQL receiver enabled by default

[samiura]

Component(s)

receiver/mysql

Describe the issue you're reporting

We need to make the following metrics enabled by default ( which are disabled now).

1. mysql.commands
2. mysql.client.network.io](http://mysql.client.network.io/)
3. mysql.connection.count
4. mysql.connection.errors
5. mysql.query.count
6. mysql.query.slow.count

[github-actions]

Pinging code owners:

• receiver/mysql: @djaglowski

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[djaglowski]

We need to make the following metrics enabled by default

What makes this a need?

Unfortunately we have have a policy of not enabling metrics by default which were added after the component was labeled beta. (Although this restriction was put in place after the component was labeled beta.)

Personally, I would like to enable many metrics by default but each one will be considered a breaking change at this point. In theory we may be able to do this but it will require a feature gate and potentially a revision of our guidelines for scraper stability.

[samiura]

@djaglowski Understood! I will close the issue and try to find a workaround from our distribution.