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.TH HAPROXY 8 "17 August 2007"
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HAProxy \- fast and reliable http reverse proxy
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haproxy -f <configuration file> [-n maxconn] [-N maxconn] [-d] [-D] [-q] [-V] [-c] [-p <pidfile>] [-sf] [-st] [-s] [-l] [-dk] [-ds] [-de] [-dp] [-db] [-m <megs>]
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HAProxy is a TCP/HTTP reverse proxy which is particularly suited for
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high availability environments. Indeed, it can :
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\- route HTTP requests depending on statically assigned cookies ;
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\- spread the load among several servers while assuring server
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persistence through the use of HTTP cookies ;
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\- switch to backup servers in the event a main one fails ;
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\- accept connections to special ports dedicated to service
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\- stop accepting connections without breaking existing ones ;
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\- add/modify/delete HTTP headers both ways ;
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\- block requests matching a particular pattern ;
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\- hold clients to the right application server depending on
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\- report detailed status as HTML pages to authenticated users from an
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URI intercepted from the application.
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It needs very little resource. Its event-driven architecture allows it
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to easily handle thousands of simultaneous connections on hundreds of
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instances without risking the system's stability.
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\fB-f <configuration file>\fP
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Specify configuration file path.
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Set the high limit for the total number of simultaneous connections.
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Set the high limit for the per-listener number of simultaneous connections.
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Start in foregreound with debugging mode enabled.
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When the proxy runs in this mode, it dumps every connections,
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disconnections, timestamps, and HTTP headers to stdout. This should
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NEVER be used in an init script since it will prevent the system from
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Disable messages on output.
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Displays messages on output even when -q or 'quiet' are specified.
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Only checks config file and exits with code 0 if no error was found, or
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exits with code 1 if a syntax error was found.
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Ask the process to write down each of its children's pids to this file
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Send FINISH signal to the pids in pidlist after startup.
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Send TERMINATE signal to the pids in pidlist after startup.
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Show statistics (only if compiled in).
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Statistics are only available if compiled in with the 'STATTIME' option.
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It's only used during code optimization phases, and will soon disappear.
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Show even more statistics (implies '-s').
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Disable use of kqueue().
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Disable use of speculative epoll().
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Disable use of epoll().
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Disables use of poll().
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Disables background mode (stays in foreground, useful for debugging).
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For debugging, the '-db' option is very useful as it temporarily
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disables daemon mode and multi-process mode. The service can then be
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stopped by simply pressing Ctrl-C, without having to edit the config nor
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Enforce a memory usage limit to a maximum of <megs> megabytes.
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A much better documentation can be found in haproxy-en.txt. On debian
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systems, you can find this file in
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/usr/share/doc/haproxy/haproxy-en.txt.gz.
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HAProxy was written by Willy Tarreau.
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removed
debian/haproxy.8
