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Smokeping::probes::EchoPingHttp - an echoping(1) probe for SmokePing
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Measures HTTP roundtrip times (web servers and caches) for SmokePing.
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binary = /usr/bin/echoping
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# The following variables can be overridden in each target section
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extraopts = -some-letter-the-author-did-not-think-of
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probe = EchoPingHttp # if this should be the default probe
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# probe = EchoPingHttp # if the default probe is something else
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extraopts = -some-letter-the-author-did-not-think-of
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Supported probe-specific variables:
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The location of your echoping binary.
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Default value: /usr/bin/echoping
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Run this many concurrent processes at maximum
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If you run many probes concurrently you may want to prevent them from
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hitting your network all at the same time. Using the probe-specific
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offset parameter you can change the point in time when each probe will
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be run. Offset is specified in % of total interval, or alternatively as
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'random', and the offset from the 'General' section is used if nothing
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is specified here. Note that this does NOT influence the rrds itself,
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it is just a matter of when data acqusition is initiated.
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(This variable is only applicable if the variable 'concurrentprobes' is set
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in the 'General' section.)
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Duration of the base interval that this probe should use, if different
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from the one specified in the 'Database' section. Note that the step in
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the RRD files is fixed when they are originally generated, and if you
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change the step parameter afterwards, you'll have to delete the old RRD
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files or somehow convert them. (This variable is only applicable if
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the variable 'concurrentprobes' is set in the 'General' section.)
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Supported target-specific variables:
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Any extra options specified here will be passed unmodified to echoping(1).
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Example value: -some-letter-the-author-did-not-think-of
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The echoping(1) "-A" option: force the proxy to ignore the cache.
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Enabled if the value is anything other than 'no' or '0'.
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The IP protocol used. Possible values are "4" and "6".
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Passed to echoping(1) as the "-4" or "-6" options.
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How many pings should be sent to each target, if different from the global
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value specified in the Database section. Note that the number of pings in
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the RRD files is fixed when they are originally generated, and if you
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change this parameter afterwards, you'll have to delete the old RRD
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files or somehow convert them.
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The "-p" echoping(1) option.
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=item revalidate_data
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The echoping(1) "-a" option: force the proxy to revalidate data with original
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server. Enabled if the value is anything other than 'no' or '0'.
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The "-t" echoping(1) option.
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The "-P" echoping(1) option.
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The URL to be requested from the web server or cache. Can be either relative
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(/...) for web servers or absolute (http://...) for caches.
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The "-w" echoping(1) option.
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Niko Tyni <ntyni@iki.fi>
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You should consider setting a lower value for the C<pings> variable than the
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default 20, as repetitive URL fetching may be quite heavy on the server.
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The I<fill>, I<size> and I<udp> EchoPing variables are not valid for EchoPingHttp.
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L<Smokeping::probes::EchoPing>, L<Smokeping::probes::EchoPingHttps>
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