Smokeping_probes_EchoPingHttp(3)				     SmokePing					  Smokeping_probes_EchoPingHttp(3)

NAME

       Smokeping::probes::EchoPingHttp - an echoping(1) probe for SmokePing

OVERVIEW

       Measures HTTP roundtrip times (web servers and caches) for SmokePing.

SYNOPSIS

	*** Probes ***

	+EchoPingHttp

	binary = /usr/bin/echoping
	forks = 5
	offset = 50%
	step = 300

	# The following variables can be overridden in each target section
	accept_redirects = yes
	extraopts = -some-letter-the-author-did-not-think-of
	ignore_cache = yes
	ipversion = 4
	pings = 5
	port = 80
	priority = 6
	revalidate_data = no
	timeout = 1
	tos = 0xa0
	url = /
	waittime = 1

	# [...]

	*** Targets ***

	probe = EchoPingHttp # if this should be the default probe

	# [...]

	+ mytarget
	# probe = EchoPingHttp # if the default probe is something else
	host = my.host
	accept_redirects = yes
	extraopts = -some-letter-the-author-did-not-think-of
	ignore_cache = yes
	ipversion = 4
	pings = 5
	port = 80
	priority = 6
	revalidate_data = no
	timeout = 1
	tos = 0xa0
	url = /
	waittime = 1

VARIABLES

       Supported probe-specific variables:

       binary
	   The location of your echoping binary.

	   Default value: /usr/bin/echoping

       forks
	   Run this many concurrent processes at maximum

	   Example value: 5

	   Default value: 5

       offset
	   If you run many probes concurrently you may want to prevent them from hitting your network all at the same time. Using the probe-
	   specific offset parameter you can change the point in time when each probe will be run. Offset is specified in % of total interval, or
	   alternatively as 'random', and the offset from the 'General' section is used if nothing is specified here. Note that this does NOT
	   influence the rrds itself, it is just a matter of when data acqusition is initiated.  (This variable is only applicable if the variable
	   'concurrentprobes' is set in the 'General' section.)

	   Example value: 50%

       step
	   Duration of the base interval that this probe should use, if different from the one specified in the 'Database' section. Note that the
	   step in the RRD files is fixed when they are originally generated, and if you change the step parameter afterwards, you'll have to
	   delete the old RRD files or somehow convert them. (This variable is only applicable if the variable 'concurrentprobes' is set in the
	   'General' section.)

	   Example value: 300

       Supported target-specific variables:

       accept_redirects
	   The echoping(1) "-R" option: Accept	HTTP  status  codes  3xx (redirections) as normal responses instead of treating them as errors.
	   Note that this option is only available starting with Echoping 6.

	   Enabled if the value is anything other than 'no' or '0'.

	   Example value: yes

       extraopts
	   Any extra options specified here will be passed unmodified to echoping(1).

	   Example value: -some-letter-the-author-did-not-think-of

       ignore_cache
	   The echoping(1) "-A" option: force the proxy to ignore the cache.  Enabled if the value is anything other than 'no' or '0'.

	   Example value: yes

       ipversion
	   The IP protocol used. Possible values are "4" and "6".  Passed to echoping(1) as the "-4" or "-6" options.

	   Example value: 4

       pings
	   How many pings should be sent to each target, if different from the global value specified in the Database section. Note that the
	   number of pings in the RRD files is fixed when they are originally generated, and if you change this parameter afterwards, you'll have
	   to delete the old RRD files or somehow convert them.

	   Example value: 5

       port
	   The TCP port to use.

	   Example value: 80

       priority
	   The "-p" echoping(1) option.

	   Example value: 6

       revalidate_data
	   The echoping(1) "-a" option: force the proxy to revalidate data with original server. Enabled if the value is anything other than 'no'
	   or '0'.

	   Example value: no

       timeout
	   The "-t" echoping(1) option.

	   Example value: 1

	   Default value: 5

       tos The "-P" echoping(1) option.

	   Example value: 0xa0

       url The URL to be requested from the web server or cache. Can be either relative (/...) for web servers or absolute (http://...) for
	   caches.

	   Default value: /

       waittime
	   The "-w" echoping(1) option.

	   Example value: 1

AUTHORS

       Niko Tyni <ntyni@iki.fi>

NOTES

       You should consider setting a lower value for the "pings" variable than the default 20, as repetitive URL fetching may be quite heavy on
       the server.

       The fill, size and udp EchoPing variables are not valid for EchoPingHttp.

SEE ALSO

       Smokeping::probes::EchoPing, Smokeping::probes::EchoPingHttps

2.6.8								    2013-03-17					  Smokeping_probes_EchoPingHttp(3)