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7d0aaf39d1
It's very annoying that frontend and backend stats are merged because we don't know what we're observing. For instance, if a "listen" instance makes use of a distinct backend, it's impossible to know what the bytes_out means. Some points take care of not updating counters twice if the backend points to the frontend, indicating a "listen" instance. The thing becomes more complex when we try to add support for server side keep-alive, because we have to maintain a pointer to the backend used for last request, and to update its stats. But we can't perform such comparisons anymore because the counters will not match anymore. So in order to get rid of this situation, let's have both frontend AND backend stats in the "struct proxy". We simply update the relevant ones during activity. Some of them are only accounted for in the backend, while others are just for frontend. Maybe we can improve a bit on that later, but the essential part is that those counters now reflect what they really mean.
120 lines
3.9 KiB
C
120 lines
3.9 KiB
C
/*
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* include/proto/proxy.h
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* This file defines function prototypes for proxy management.
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*
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* Copyright (C) 2000-2009 Willy Tarreau - w@1wt.eu
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation, version 2.1
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* exclusively.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef _PROTO_PROXY_H
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#define _PROTO_PROXY_H
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#include <common/config.h>
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#include <common/ticks.h>
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#include <common/time.h>
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#include <types/proxy.h>
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#include <proto/freq_ctr.h>
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int start_proxies(int verbose);
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void maintain_proxies(int *next);
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void soft_stop(void);
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void pause_proxy(struct proxy *p);
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void stop_proxy(struct proxy *p);
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void pause_proxies(void);
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void listen_proxies(void);
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int session_set_backend(struct session *s, struct proxy *be);
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const char *proxy_cap_str(int cap);
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const char *proxy_mode_str(int mode);
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struct proxy *findproxy_mode(const char *name, int mode, int cap);
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struct proxy *findproxy(const char *name, int cap);
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struct server *findserver(const struct proxy *px, const char *name);
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int proxy_cfg_ensure_no_http(struct proxy *curproxy);
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int get_backend_server(const char *bk_name, const char *sv_name,
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struct proxy **bk, struct server **sv);
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/*
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* This function returns a string containing the type of the proxy in a format
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* suitable for error messages, from its capabilities.
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*/
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static inline const char *proxy_type_str(struct proxy *proxy)
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{
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return proxy_cap_str(proxy->cap);
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}
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/* this function initializes all timeouts for proxy p */
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static inline void proxy_reset_timeouts(struct proxy *proxy)
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{
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proxy->timeout.client = TICK_ETERNITY;
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proxy->timeout.tarpit = TICK_ETERNITY;
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proxy->timeout.queue = TICK_ETERNITY;
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proxy->timeout.connect = TICK_ETERNITY;
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proxy->timeout.server = TICK_ETERNITY;
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proxy->timeout.appsession = TICK_ETERNITY;
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proxy->timeout.httpreq = TICK_ETERNITY;
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proxy->timeout.check = TICK_ETERNITY;
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}
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/* increase the number of cumulated connections received on the designated frontend */
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static void inline proxy_inc_fe_conn_ctr(struct listener *l, struct proxy *fe)
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{
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fe->fe_counters.cum_conn++;
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if (l->counters)
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l->counters->cum_conn++;
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update_freq_ctr(&fe->fe_conn_per_sec, 1);
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if (fe->fe_conn_per_sec.curr_ctr > fe->fe_counters.cps_max)
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fe->fe_counters.cps_max = fe->fe_conn_per_sec.curr_ctr;
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}
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/* increase the number of cumulated connections accepted by the designated frontend */
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static void inline proxy_inc_fe_sess_ctr(struct listener *l, struct proxy *fe)
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{
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fe->fe_counters.cum_sess++;
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if (l->counters)
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l->counters->cum_sess++;
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update_freq_ctr(&fe->fe_sess_per_sec, 1);
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if (fe->fe_sess_per_sec.curr_ctr > fe->fe_counters.sps_max)
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fe->fe_counters.sps_max = fe->fe_sess_per_sec.curr_ctr;
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}
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/* increase the number of cumulated connections on the designated backend */
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static void inline proxy_inc_be_ctr(struct proxy *be)
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{
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be->be_counters.cum_conn++;
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update_freq_ctr(&be->be_sess_per_sec, 1);
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if (be->be_sess_per_sec.curr_ctr > be->be_counters.sps_max)
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be->be_counters.sps_max = be->be_sess_per_sec.curr_ctr;
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}
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/* increase the number of cumulated requests on the designated frontend */
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static void inline proxy_inc_fe_req_ctr(struct proxy *fe)
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{
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fe->fe_counters.p.http.cum_req++;
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update_freq_ctr(&fe->fe_req_per_sec, 1);
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if (fe->fe_req_per_sec.curr_ctr > fe->fe_counters.p.http.rps_max)
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fe->fe_counters.p.http.rps_max = fe->fe_req_per_sec.curr_ctr;
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}
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#endif /* _PROTO_PROXY_H */
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/*
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* Local variables:
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* c-indent-level: 8
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* c-basic-offset: 8
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* End:
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*/
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