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Haproxy Start parameters

jason — Thu, 25 Jun 2009 05:46:45 +0000

There are only a few command line options about haproxy:

    -f <configuration file>
    -n <high limit for the total number of simultaneous connections>
       = ‘maxconn’ in ‘global’ section
    -N <high limit for the per-listener number of simultaneous connections>
       = ‘maxconn’ in ‘listen’ or ‘default’ sections
    -d starts in foregreound with debugging mode enabled
    -D starts in daemon mode
    -q disable messages on output
    -V displays messages on output even when -q or ‘quiet’ are specified.
    -c only checks config file… Read the rest

Haproxy Performance tuning

jason — Wed, 24 Jun 2009 07:59:24 +0000

HAProxy is a free, very fast and reliable solution offering high availability, load balancing, and proxying for TCP and HTTP-based applications. It is particularly suited for web sites crawling under very high loads while needing persistence or Layer7 processing

Performance Parameters of Haproxy:

maxconn <number>
Sets the maximum per-process number of concurrent connections to <number>. It
is equivalent to the command-line argument "-n". Proxies will stop accepting
connections when this limit is reached. The "ulimit-n" parameter is
automatically adjusted according to this value. See also "ulimit-n".

maxpipes <number>
… Read the rest

Load balancing using HAProxy

jason — Thu, 14 May 2009 10:11:02 +0000

HAProxy is a TCP/HTTP reverse proxy which is particularly suited for high availability environments. Indeed, it can : – route HTTP requests depending on statically assigned cookies ; – spread the load among several servers while assuring server persistence through the use of HTTP cookies ; – switch to backup servers in the event a main one fails ; – accept connections to special ports dedicated to service monitoring ; – stop accepting connections without breaking existing ones ; – add/modify/delete HTTP headers both ways ; – block requests matching a particular pattern ;

Install:
1.download haproxy.… Read the rest