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http://git.haproxy.org/git/haproxy.git/
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23e9e93128
The default len of request uri in log messages is 1024. In some use cases, you need to keep the long trail of GET parameters. The only way to increase this len is to recompile with DEFINE=-DREQURI_LEN=2048. This commit introduces a tune.http.logurilen configuration directive, allowing to tune this at runtime.
321 lines
9.9 KiB
C
321 lines
9.9 KiB
C
/*
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* include/common/defaults.h
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* Miscellaneous default values.
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*
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* Copyright (C) 2000-2010 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 _COMMON_DEFAULTS_H
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#define _COMMON_DEFAULTS_H
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/*
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* BUFSIZE defines the size of a read and write buffer. It is the maximum
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* amount of bytes which can be stored by the proxy for each stream. However,
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* when reading HTTP headers, the proxy needs some spare space to add or rewrite
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* headers if needed. The size of this spare is defined with MAXREWRITE. So it
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* is not possible to process headers longer than BUFSIZE-MAXREWRITE bytes. By
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* default, BUFSIZE=16384 bytes and MAXREWRITE=min(1024,BUFSIZE/2), so the
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* maximum length of headers accepted is 15360 bytes.
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*/
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#ifndef BUFSIZE
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#define BUFSIZE 16384
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#endif
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/* certain buffers may only be allocated for responses in order to avoid
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* deadlocks caused by request queuing. 2 buffers is the absolute minimum
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* acceptable to ensure that a request gaining access to a server can get
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* a response buffer even if it doesn't completely flush the request buffer.
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* The worst case is an applet making use of a request buffer that cannot
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* completely be sent while the server starts to respond, and all unreserved
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* buffers are allocated by request buffers from pending connections in the
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* queue waiting for this one to flush. Both buffers reserved buffers may
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* thus be used at the same time.
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*/
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#ifndef RESERVED_BUFS
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#define RESERVED_BUFS 2
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#endif
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// reserved buffer space for header rewriting
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#ifndef MAXREWRITE
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#define MAXREWRITE 1024
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#endif
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#ifndef REQURI_LEN
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#define REQURI_LEN 1024
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#endif
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#ifndef CAPTURE_LEN
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#define CAPTURE_LEN 64
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#endif
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#ifndef MAX_SYSLOG_LEN
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#define MAX_SYSLOG_LEN 1024
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#endif
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// maximum line size when parsing config
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#ifndef LINESIZE
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#define LINESIZE 2048
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#endif
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// max # args on a configuration line
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#define MAX_LINE_ARGS 64
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// maximum line size when parsing crt-bind-list config
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#define CRT_LINESIZE 65536
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// max # args on crt-bind-list configuration line
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#define MAX_CRT_ARGS 2048
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// max # args on a stats socket
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// This should cover at least 5 + twice the # of data_types
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#define MAX_STATS_ARGS 64
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// max # of matches per regexp
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#define MAX_MATCH 10
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// max # of headers in one HTTP request or response
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// By default, about 100 headers (+1 for the first line)
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#ifndef MAX_HTTP_HDR
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#define MAX_HTTP_HDR 101
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#endif
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// max # of headers in history when looking for header #-X
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#ifndef MAX_HDR_HISTORY
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#define MAX_HDR_HISTORY 10
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#endif
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// max # of stick counters per session (at least 3 for sc0..sc2)
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#ifndef MAX_SESS_STKCTR
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#define MAX_SESS_STKCTR 3
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#endif
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// max # of extra stick-table data types that can be registred at runtime
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#ifndef STKTABLE_EXTRA_DATA_TYPES
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#define STKTABLE_EXTRA_DATA_TYPES 0
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#endif
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// max # of loops we can perform around a read() which succeeds.
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// It's very frequent that the system returns a few TCP segments at a time.
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#ifndef MAX_READ_POLL_LOOPS
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#define MAX_READ_POLL_LOOPS 4
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#endif
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// minimum number of bytes read at once above which we don't try to read
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// more, in order not to risk facing an EAGAIN. Most often, if we read
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// at least 10 kB, we can consider that the system has tried to read a
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// full buffer and got multiple segments (>1 MSS for jumbo frames, >7 MSS
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// for normal frames) did not bother truncating the last segment.
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#ifndef MIN_RECV_AT_ONCE_ENOUGH
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#define MIN_RECV_AT_ONCE_ENOUGH (7*1448)
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#endif
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// The minimum number of bytes to be forwarded that is worth trying to splice.
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// Below 4kB, it's not worth allocating pipes nor pretending to zero-copy.
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#ifndef MIN_SPLICE_FORWARD
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#define MIN_SPLICE_FORWARD 4096
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#endif
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// the max number of events returned in one call to poll/epoll. Too small a
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// value will cause lots of calls, and too high a value may cause high latency.
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#ifndef MAX_POLL_EVENTS
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#define MAX_POLL_EVENTS 200
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#endif
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// cookie delimitor in "prefix" mode. This character is inserted between the
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// persistence cookie and the original value. The '~' is allowed by RFC6265,
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// and should not be too common in server names.
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#ifndef COOKIE_DELIM
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#define COOKIE_DELIM '~'
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#endif
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// this delimitor is used between a server's name and a last visit date in
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// cookies exchanged with the client.
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#ifndef COOKIE_DELIM_DATE
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#define COOKIE_DELIM_DATE '|'
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#endif
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#define CONN_RETRIES 3
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#define CHK_CONNTIME 2000
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#define DEF_CHKINTR 2000
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#define DEF_MAILALERTTIME 10000
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#define DEF_FALLTIME 3
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#define DEF_RISETIME 2
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#define DEF_AGENT_FALLTIME 1
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#define DEF_AGENT_RISETIME 1
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#define DEF_CHECK_REQ "OPTIONS / HTTP/1.0\r\n"
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#define DEF_CHECK_PATH ""
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#define DEF_SMTP_CHECK_REQ "HELO localhost\r\n"
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#define DEF_LDAP_CHECK_REQ "\x30\x0c\x02\x01\x01\x60\x07\x02\x01\x03\x04\x00\x80\x00"
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#define DEF_REDIS_CHECK_REQ "*1\r\n$4\r\nPING\r\n"
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#define DEF_HANA_ONERR HANA_ONERR_FAILCHK
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#define DEF_HANA_ERRLIMIT 10
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// X-Forwarded-For header default
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#define DEF_XFORWARDFOR_HDR "X-Forwarded-For"
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// X-Original-To header default
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#define DEF_XORIGINALTO_HDR "X-Original-To"
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/* Default connections limit.
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*
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* A system limit can be enforced at build time in order to avoid using haproxy
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* beyond reasonable system limits. For this, just define SYSTEM_MAXCONN to the
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* absolute limit accepted by the system. If the configuration specifies a
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* higher value, it will be capped to SYSTEM_MAXCONN and a warning will be
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* emitted. The only way to override this limit will be to set it via the
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* command-line '-n' argument.
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*/
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#ifndef SYSTEM_MAXCONN
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#ifndef DEFAULT_MAXCONN
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#define DEFAULT_MAXCONN 2000
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#endif
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#else
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#undef DEFAULT_MAXCONN
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#define DEFAULT_MAXCONN SYSTEM_MAXCONN
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#endif
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/* Minimum check interval for spread health checks. Servers with intervals
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* greater than or equal to this value will have their checks spread apart
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* and will be considered when searching the minimal interval.
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* Others will be ignored for the minimal interval and will have their checks
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* scheduled on a different basis.
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*/
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#ifndef SRV_CHK_INTER_THRES
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#define SRV_CHK_INTER_THRES 1000
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#endif
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/* Specifies the string used to report the version and release date on the
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* statistics page. May be defined to the empty string ("") to permanently
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* disable the feature.
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*/
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#ifndef STATS_VERSION_STRING
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#define STATS_VERSION_STRING " version " HAPROXY_VERSION ", released " HAPROXY_DATE
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#endif
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/* Maximum signal queue size, and also number of different signals we can
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* handle.
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*/
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#ifndef MAX_SIGNAL
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#define MAX_SIGNAL 256
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#endif
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/* Maximum host name length */
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#ifndef MAX_HOSTNAME_LEN
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#if MAXHOSTNAMELEN
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#define MAX_HOSTNAME_LEN MAXHOSTNAMELEN
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#else
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#define MAX_HOSTNAME_LEN 64
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#endif // MAXHOSTNAMELEN
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#endif // MAX_HOSTNAME_LEN
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/* Maximum health check description length */
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#ifndef HCHK_DESC_LEN
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#define HCHK_DESC_LEN 128
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#endif
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/* ciphers used as defaults on connect */
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#ifndef CONNECT_DEFAULT_CIPHERS
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#define CONNECT_DEFAULT_CIPHERS NULL
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#endif
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/* ciphers used as defaults on listeners */
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#ifndef LISTEN_DEFAULT_CIPHERS
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#define LISTEN_DEFAULT_CIPHERS NULL
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#endif
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/* named curve used as defaults for ECDHE ciphers */
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#ifndef ECDHE_DEFAULT_CURVE
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#define ECDHE_DEFAULT_CURVE "prime256v1"
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#endif
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/* ssl cache size */
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#ifndef SSLCACHESIZE
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#define SSLCACHESIZE 20000
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#endif
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/* ssl max dh param size */
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#ifndef SSL_DEFAULT_DH_PARAM
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#define SSL_DEFAULT_DH_PARAM 0
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#endif
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/* max memory cost per SSL session */
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#ifndef SSL_SESSION_MAX_COST
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#define SSL_SESSION_MAX_COST (16*1024) // measured
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#endif
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/* max memory cost per SSL handshake (on top of session) */
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#ifndef SSL_HANDSHAKE_MAX_COST
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#define SSL_HANDSHAKE_MAX_COST (76*1024) // measured
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#endif
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#ifndef DEFAULT_SSL_CTX_CACHE
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#define DEFAULT_SSL_CTX_CACHE 1000
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#endif
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/* approximate stream size (for maxconn estimate) */
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#ifndef STREAM_MAX_COST
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#define STREAM_MAX_COST (sizeof(struct stream) + \
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2 * sizeof(struct channel) + \
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2 * sizeof(struct connection) + \
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global.tune.requri_len + \
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2 * global.tune.cookie_len)
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#endif
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/* available memory estimate : count about 3% of overhead in various structures */
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#ifndef MEM_USABLE_RATIO
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#define MEM_USABLE_RATIO 0.97
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#endif
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/* Number of samples used to compute the times reported in stats. A power of
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* two is highly recommended, and this value multiplied by the largest response
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* time must not overflow and unsigned int. See freq_ctr.h for more information.
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* We consider that values are accurate to 95% with two batches of samples below,
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* so in order to advertise accurate times across 1k samples, we effectively
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* measure over 512.
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*/
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#ifndef TIME_STATS_SAMPLES
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#define TIME_STATS_SAMPLES 512
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#endif
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/* max ocsp cert id asn1 encoded length */
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#ifndef OCSP_MAX_CERTID_ASN1_LENGTH
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#define OCSP_MAX_CERTID_ASN1_LENGTH 128
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#endif
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#ifndef OCSP_MAX_RESPONSE_TIME_SKEW
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#define OCSP_MAX_RESPONSE_TIME_SKEW 300
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#endif
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/* Number of TLS tickets to check, used for rotation */
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#ifndef TLS_TICKETS_NO
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#define TLS_TICKETS_NO 3
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#endif
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/* pattern lookup default cache size, in number of entries :
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* 10k entries at 10k req/s mean 1% risk of a collision after 60 years, that's
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* already much less than the memory's reliability in most machines and more
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* durable than most admin's life expectancy. A collision will result in a
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* valid result to be returned for a different entry from the same list.
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*/
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#ifndef DEFAULT_PAT_LRU_SIZE
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#define DEFAULT_PAT_LRU_SIZE 10000
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#endif
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#endif /* _COMMON_DEFAULTS_H */
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