Smokeping::probes::EchoPingHttp - an echoping(1) probe for SmokePing
Measures HTTP roundtrip times (web servers and caches) for SmokePing.
*** Probes ***
+EchoPingHttp
binary = /usr/bin/echoping
forks = 5
offset = 50%
step = 300
# The following variables can be overridden in each target section
/^influx_.+/ = influx_location = In the basement
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 = 20
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
/^influx_.+/ = influx_location = In the basement
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 = 20
tos = 0xa0
url = /
waittime = 1
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 acquisition 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:
- /^influx_.+/
- This is a tag that will be sent to influxdb and has no impact on the probe
measurement. The tag name will be sent without the "influx_"
prefix, which will be replaced with "tag_" instead. Tags can be
used for filtering.
Example value: influx_location = In the basement
- 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: 20
Default value: 10
- 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
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.
Smokeping::probes::EchoPing, Smokeping::probes::EchoPingHttps