Hierarchical Cache

    proxy.node.http.parent_proxy_total_response_bytes

    Collection:global
    Type:counter
    Datatype:integer

    proxy.process.http.parent_proxy_request_total_bytes

    Collection:global
    Type:counter
    Datatype:integer

    proxy.process.http.parent_proxy_transaction_time

    Collection:global
    Type:counter
    Datatype:integer