NewErrorRunner creates a new error runner.

NewQueryRunner instantiates a new distributed query runner.

ErrorRunner is used to propagate an error all the way to the aggregation routine.

QueryRunner denotes a query runner / executor, wrapping a Querier interface instance with other fields required to perform a distributed query.

Querier provides a general interface for all query executors.

QuerierAnyable extends a "common" Querier with the support to retrieve a list of all hosts / targets available to the Querier.

QueryOption configures the query runner.