# "Tw" is the total time in milliseconds spent waiting in the various queues
“Tw”是在各种队列中等待的总时间，以毫秒为单位
# "Tc" is the total time in milliseconds spent waiting for the connection to establish to the final server, including retries
"Tc"是等待连接建立到最终服务器的总时间(以毫秒为单位)，包括重试
# "Tt" is the total time in milliseconds elapsed between the accept and the last close
"Tt"是接收和最后一次关闭之间的总时间
# "Tr" is the total time in milliseconds spent waiting for the server to send a full HTTP response, not counting data
“Tr”是等待服务器发送完整HTTP响应的总时间，以毫秒为单位，不计算数据
# "Ta" is the time the request remained active in HAProxy, It covers all possible processing except the handshake (see Th) and idle time (see Ti)
“Ta”是请求在HAProxy中保持活跃的时间，它包括了除握手(见Th)和空闲时间(见Ti)之外的所有可能的处理时间。
%ac | actconn | numeric
%fc | feconn (frontend concurrent connections) | numeric
%bc | beconn (backend concurrent connections) | numeric
%sc | srv_conn (server concurrent connections) | numeric
%rc | retries | numeric 重试次数
%sq | srv_queue | numeric
%bq | backend_queue | numeric
%ci | client_ip (accepted address) | IP
%cp | client_port (accepted address) | numeric
%tw “Tw”是在各种队列中等待的总时间，以毫秒为单位
%B | bytes_read (from server to client) | numeric
%ST | status_code | numeric
%r | http_request | string
%ts | termination_state | string
