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16eb0fab31
Most fe and be counters are good candidates for being shared between
processes. They are now grouped inside "shared" struct sub member under
be_counters and fe_counters.
Now they are properly identified, they would greatly benefit from being
shared over thread groups to reduce the cost of atomic operations when
updating them. For this, we take the current tgid into account so each
thread group only updates its own counters. For this to work, it is
mandatory that the "shared" member from {fe,be}_counters is initialized
AFTER global.nbtgroups is known, because each shared counter causes the stat
to be allocated lobal.nbtgroups times. When updating a counter without
concurrency, the first counter from the array may be updated.
To consult the shared counters (which requires aggregation of per-tgid
individual counters), some helper functions were added to counter.h to
ease code maintenance and avoid computing errors.
176 lines
7.8 KiB
C
176 lines
7.8 KiB
C
/*
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* include/haproxy/counters-t.h
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* This file contains structure declarations for statistics counters.
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*
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* Copyright 2008-2009 Krzysztof Piotr Oledzki <ole@ans.pl>
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* Copyright 2011-2014 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 _HAPROXY_COUNTERS_T_H
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#define _HAPROXY_COUNTERS_T_H
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#include <haproxy/freq_ctr-t.h>
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#define COUNTERS_SHARED_F_NONE 0x0000
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#define COUNTERS_SHARED_F_LOCAL 0x0001 // shared counter struct is actually process-local
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// common to fe_counters_shared and be_counters_shared
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#define COUNTERS_SHARED \
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struct { \
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uint16_t flags; /* COUNTERS_SHARED_F flags */\
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};
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#define COUNTERS_SHARED_TG \
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struct { \
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unsigned long last_change; /* last time, when the state was changed */\
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long long srv_aborts; /* aborted responses during DATA phase caused by the server */\
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long long cli_aborts; /* aborted responses during DATA phase caused by the client */\
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long long internal_errors; /* internal processing errors */\
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long long failed_rewrites; /* failed rewrites (warning) */\
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long long bytes_out; /* number of bytes transferred from the server to the client */\
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long long bytes_in; /* number of bytes transferred from the client to the server */\
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long long denied_resp; /* blocked responses because of security concerns */\
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long long denied_req; /* blocked requests because of security concerns */\
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long long cum_sess; /* cumulated number of accepted connections */\
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/* compression counters, index 0 for requests, 1 for responses */\
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long long comp_in[2]; /* input bytes fed to the compressor */\
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long long comp_out[2]; /* output bytes emitted by the compressor */\
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long long comp_byp[2]; /* input bytes that bypassed the compressor (cpu/ram/bw limitation) */\
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struct freq_ctr sess_per_sec; /* sessions per second on this server */\
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}
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// for convenience (generic pointer)
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struct counters_shared {
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COUNTERS_SHARED;
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struct {
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COUNTERS_SHARED_TG;
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} *tg[MAX_TGROUPS];
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};
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/* counters used by listeners and frontends */
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struct fe_counters_shared_tg {
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COUNTERS_SHARED_TG;
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long long denied_sess; /* denied session requests (tcp-req-sess rules) */
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long long denied_conn; /* denied connection requests (tcp-req-conn rules) */
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long long intercepted_req; /* number of monitoring or stats requests intercepted by the frontend */
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long long cum_conn; /* cumulated number of received connections */
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struct freq_ctr conn_per_sec; /* received connections per second on the frontend */
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struct freq_ctr req_per_sec; /* HTTP requests per second on the frontend */
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long long cum_sess_ver[3]; /* cumulated number of h1/h2/h3 sessions */
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union {
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struct {
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long long cum_req[4]; /* cumulated number of processed other/h1/h2/h3 requests */
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long long cache_hits; /* cache hits */
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long long cache_lookups;/* cache lookups */
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long long comp_rsp; /* number of compressed responses */
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long long rsp[6]; /* http response codes */
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} http;
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} p; /* protocol-specific stats */
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long long failed_req; /* failed requests (eg: invalid or timeout) */
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};
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struct fe_counters_shared {
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COUNTERS_SHARED;
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struct fe_counters_shared_tg *tg[MAX_TGROUPS];
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};
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struct fe_counters {
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struct fe_counters_shared *shared; /* shared counters */
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unsigned int conn_max; /* max # of active sessions */
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unsigned int cps_max; /* maximum of new connections received per second */
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unsigned int sps_max; /* maximum of new connections accepted per second (sessions) */
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struct freq_ctr _sess_per_sec; /* sessions per second on this frontend, used to compute sps_max (internal use only) */
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struct freq_ctr _conn_per_sec; /* connections per second on this frontend, used to compute cps_max (internal use only) */
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union {
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struct {
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unsigned int rps_max; /* maximum of new HTTP requests second observed */
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struct freq_ctr _req_per_sec; /* HTTP requests per second on the frontend, only used to compute rps_max */
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} http;
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} p; /* protocol-specific stats */
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};
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struct be_counters_shared_tg {
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COUNTERS_SHARED_TG;
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long long cum_lbconn; /* cumulated number of sessions processed by load balancing (BE only) */
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long long connect; /* number of connection establishment attempts */
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long long reuse; /* number of connection reuses */
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unsigned long last_sess; /* last session time */
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long long failed_checks, failed_hana; /* failed health checks and health analyses for servers */
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long long down_trans; /* up->down transitions */
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union {
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struct {
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long long cum_req; /* cumulated number of processed HTTP requests */
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long long cache_hits; /* cache hits */
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long long cache_lookups;/* cache lookups */
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long long comp_rsp; /* number of compressed responses */
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long long rsp[6]; /* http response codes */
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} http;
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} p; /* protocol-specific stats */
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long long redispatches; /* retried and redispatched connections (BE only) */
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long long retries; /* retried and redispatched connections (BE only) */
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long long failed_resp; /* failed responses (BE only) */
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long long failed_conns; /* failed connect() attempts (BE only) */
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};
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struct be_counters_shared {
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COUNTERS_SHARED;
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struct be_counters_shared_tg *tg[MAX_TGROUPS];
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};
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/* counters used by servers and backends */
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struct be_counters {
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struct be_counters_shared *shared; /* shared counters */
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unsigned int conn_max; /* max # of active sessions */
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unsigned int cps_max; /* maximum of new connections received per second */
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unsigned int sps_max; /* maximum of new connections accepted per second (sessions) */
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unsigned int nbpend_max; /* max number of pending connections with no server assigned yet */
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unsigned int cur_sess_max; /* max number of currently active sessions */
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struct freq_ctr _sess_per_sec; /* sessions per second on this frontend, used to compute sps_max (internal use only) */
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unsigned int q_time, c_time, d_time, t_time; /* sums of conn_time, queue_time, data_time, total_time */
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unsigned int qtime_max, ctime_max, dtime_max, ttime_max; /* maximum of conn_time, queue_time, data_time, total_time observed */
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union {
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struct {
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unsigned int rps_max; /* maximum of new HTTP requests second observed */
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} http;
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} p; /* protocol-specific stats */
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};
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#endif /* _HAPROXY_COUNTERS_T_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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