Is db.elasticsearch.node.name the same as db.instance.id

[lmolkova]

db.elasticsearch.node.name	string	Represents the human-readable identifier of the node/instance to which a request was routed.	instance-0000

Seems to fit into db.instance.id description (or that description can be generalized)

db.instance.id	string	An identifier (address, unique name, or any other identifier) of the database instance that is executing queries or mutations on the current connection. This is useful in cases where the database is running in a clustered environment and the instrumentation is able to record the node executing the query. The client may obtain this value in databases like MySQL using queries like select @@hostname.

Related #725

[lmolkova]

Closing in favor of #725