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
2.6.9 2014-05-15 Smokeping_probes_EchoPingHttp(3)
