haproxy/tests/test-balance.cfg

# This is a test configuration.
# It tests the "balance" parser for several parameter combinations.


global
	maxconn		10000

defaults
	balance

defaults
	balance roundrobin

defaults
	balance source

defaults
	balance uri

defaults
	balance url_param foo

defaults
	mode tcp

# must produce an error
#defaults
#	balance url_param

backend tcp-bk1
	balance

backend tcp-bk2
	balance roundrobin

backend tcp-bk3
	balance source

backend tcp-bk4
	balance uri

backend tcp-bk5
	balance url_param foo

defaults
	mode http

backend http-bk1
	balance

backend http-bk2
	balance roundrobin

backend http-bk3
	balance source

backend http-bk4
	balance uri

backend http-bk5
	balance url_param foo

# must produce an error
#backend http-bk6
#	balance url_param
[MEDIUM] introduce the "url_param" balance method Some applications do not have a strict persistence requirement, yet it is still desirable for performance considerations, due to local caches on the servers. For some reasons, there are some applications which cannot rely on cookies, and for which the last resort is to use a parameter passed in the URL. The new 'url_param' balance method is there to solve this issue. It accepts a parameter name which is looked up from the URL and which is then hashed to select a server. If the parameter is not found, then the round robin algorithm is used in order to provide a normal load balancing across the servers for the first requests. It would have been possible to use a source IP hash instead, but since such applications are generally buried behind multiple levels of reverse-proxies, it would not provide a good balance. The doc has been updated, and two regression testing configurations have been added. 2007-11-01 21:48:15 +00:00			`# This is a test configuration.`
			`# It tests the "balance" parser for several parameter combinations.`


			`global`
			`maxconn 10000`

			`defaults`
			`balance`

			`defaults`
			`balance roundrobin`

			`defaults`
			`balance source`

			`defaults`
			`balance uri`

			`defaults`
			`balance url_param foo`

			`defaults`
			`mode tcp`

			`# must produce an error`
			`#defaults`
			`# balance url_param`

			`backend tcp-bk1`
			`balance`

			`backend tcp-bk2`
			`balance roundrobin`

			`backend tcp-bk3`
			`balance source`

			`backend tcp-bk4`
			`balance uri`

			`backend tcp-bk5`
			`balance url_param foo`

			`defaults`
			`mode http`

			`backend http-bk1`
			`balance`

			`backend http-bk2`
			`balance roundrobin`

			`backend http-bk3`
			`balance source`

			`backend http-bk4`
			`balance uri`

			`backend http-bk5`
			`balance url_param foo`

			`# must produce an error`
			`#backend http-bk6`
			`# balance url_param`