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<p>No updates yet. I'll move forward filing a github issue, hoping
to gather more feedback.<br>
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<p><br>
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<p>Bests,<br>
</p>
<br>
<div class="moz-cite-prefix">On 03/12/2017 03:38 PM, Yaniv Dary
wrote:<br>
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cite="mid:CACKMAy8eed-UG35Fgw9R3jjcqwqQ6S6TimL9MYOob3EFh+Hvfw@mail.gmail.com"
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<div dir="ltr">Any updates on the usage of collectd with rates?</div>
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<pre cols="72"><span style="font-family:arial,helvetica,sans-serif">Yaniv Dary
Technical Product Manager
Red Hat Israel Ltd.
34 Jerusalem Road
Building A, 4th floor
Ra'anana, Israel 4350109
Tel : +972 (9) 7692306
8272306
Email: <a moz-do-not-send="true" href="mailto:ydary@redhat.com" target="_blank">ydary@redhat.com</a>
IRC : ydary</span></pre>
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<div class="gmail_quote">On Tue, Feb 28, 2017 at 4:17 PM, Yaniv
Dary <span dir="ltr"><<a moz-do-not-send="true"
href="mailto:ydary@redhat.com" target="_blank">ydary@redhat.com</a>></span>
wrote:<br>
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<pre cols="72"><span style="font-family:arial,helvetica,sans-serif">Yaniv Dary
Technical Product Manager
Red Hat Israel Ltd.
34 Jerusalem Road
Building A, 4th floor
Ra'anana, Israel 4350109
Tel : <a moz-do-not-send="true" href="tel:+972%209-769-2306" value="+97297692306" target="_blank">+972 (9) 7692306</a>
8272306
Email: <a moz-do-not-send="true" href="mailto:ydary@redhat.com" target="_blank">ydary@redhat.com</a>
IRC : ydary</span></pre>
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<div class="h5">On Tue, Feb 28, 2017 at 4:06 PM,
Francesco Romani <span dir="ltr"><<a
moz-do-not-send="true"
href="mailto:fromani@redhat.com"
target="_blank">fromani@redhat.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0px
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rgb(204,204,204);padding-left:1ex"><span
class="m_7881526957566044995gmail-"><br>
On 02/28/2017 12:24 PM, Yaniv Dary wrote:<br>
> We need good answers from them to why
they do not support this use case.<br>
> Maybe a github issue on the use case
would get more attention. They<br>
> should allow us to choose how to present
and collect the data.<br>
> Can you open one?<br>
><br>
<br>
</span>I can, and I will if I get no answer in
few more days.<br>
Meantime, among other things, I'm doing my
homework to understand why<br>
they do like that.<br>
<br>
This is the best source of information I found
so far (please check the<br>
whole thread, it's pretty short):<br>
<br>
<a moz-do-not-send="true"
href="https://mailman.verplant.org/pipermail/collectd/2013-September/005924.html"
rel="noreferrer" target="_blank">https://mailman.verplant.org/p<wbr>ipermail/collectd/2013-Septemb<wbr>er/005924.html</a><br>
<br>
Quoting part of the email<br>
<br>
"""<br>
<br>
We only came up with one use case where having
the raw counter values is<br>
beneficial: If you want to calculate the average
rate over arbitrary<br>
time spans, it's easier to look up the raw
counter values for those<br>
points in time and go from there. However, you
can also sum up the<br>
individual rates to reach the same result.
Finally, when handling<br>
counter resets / overflows within this interval,
integrating over /<br>
summing rates is trivial by comparison.<br>
<br>
Do you have any other use-case for raw counter
values?<br>
<br>
Pro:<br>
<br>
* Handling of values becomes easier.<br>
* The rate is calculated only once, in
contrast to potentially several<br>
times, which might be more efficient
(currently each rate conversion<br>
involves a lookup call).<br>
* Together with (1), this removes the need for
having the "types.db",<br>
which could be removed then. We were in wild
agreement that this<br>
would be a worthwhile goal.<br>
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<div>Not for adding units:</div>
<div><a moz-do-not-send="true"
href="https://github.com/collectd/collectd/issues/2047"
target="_blank">https://github.com/collectd/<wbr>collectd/issues/2047</a><br>
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<br>
Contra:<br>
<br>
* Original raw value is lost. It can be
reconstructed except for a<br>
(more or less) constant offset, though.<br>
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<div>How is this done?</div>
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"""<br>
<br>
<br>
Looks like this change was intentional and
implemented after some<br>
discussion.<br>
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<div>I understand this, but most monitoring system
will not know what to do with this value.</div>
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Bests,<br>
<div class="m_7881526957566044995gmail-HOEnZb">
<div class="m_7881526957566044995gmail-h5"><br>
--<br>
Francesco Romani<br>
Red Hat Engineering Virtualization R & D<br>
IRC: fromani<br>
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<pre class="moz-signature" cols="72">--
Francesco Romani
Red Hat Engineering Virtualization R & D
IRC: fromani</pre>
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