Hierarchical Cache

proxy.process.http.parent_proxy_total_request_bytes

proxy.node.http.parent_proxy_total_response_bytes

proxy.process.http.current_parent_proxy_connections

proxy.process.http.parent_proxy_request_total_bytes

proxy.process.http.parent_proxy_response_total_bytes

proxy.process.http.parent_proxy_transaction_time

proxy.process.http.total_parent_proxy_connections