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From: Paul Davis <paul.joseph.davis@gmail.com>
Date: Thu, 7 Jan 2010 13:31:29 +0000
Message-ID: <e2111bbb1001070531n57f54eb9j6bbe18057b3a82d5@mail.gmail.com>
Subject: Re: in _stats, how is couchdb.request_time calculated?
To: user@couchdb.apache.org
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Oh, I see what you're saying. I'll have to dig into it this weekend
when I get home. You're actually giving me something worth thinking
about as I just trawl through email occasionally to burn time.
Internet cafes are a brief respite from trying to walk on the ice
rinks that are Britain's sidewalks.

Paul Davis

On Tue, Jan 5, 2010 at 5:39 PM, Matteo Caprari <matteo.caprari@gmail.com> w=
rote:
> Thanks paul :)
>
> I swear, I'm not trying to disturb your holiday. But I still don't
> understand why couchdb.requests_time sees 2 requests while
> httpd.requests sees 3 (it this is what is happening).
>
> My ass is freezing, hope your holidays are warm :)
>
> On Tue, Jan 5, 2010 at 4:56 PM, Paul Davis <paul.joseph.davis@gmail.com> =
wrote:
>> Still just shooting from memory on holiday, but that should mean that
>> you only had 2 requests in a 1 second window of the 60 seconds. The
>> stats modules work by accumulating values and then aggregating. The
>> different range query parameters just show a longer history for each
>> endpoint.
>>
>> HTH,
>> Paul Davis
>>
>> On Tue, Jan 5, 2010 at 12:11 PM, Matteo Caprari
>> <matteo.caprari@gmail.com> wrote:
>>> Hi.
>>>
>>> I'm looking at this snippet from _stats?range=3D60
>>>
>>> "couchdb": {
>>> =A0 =A0 "request_time": {
>>> =A0 =A0 =A0 =A0 =A0 =A0"description": "",
>>> =A0 =A0 =A0 =A0 =A0 =A0"current": 36.5,
>>> =A0 =A0 =A0 =A0 =A0 =A0"sum": 36.5,
>>> =A0 =A0 =A0 =A0 =A0 =A0"mean": 18.25,
>>> =A0 =A0 =A0 =A0 =A0 =A0"stddev": 22.274,
>>> =A0 =A0 =A0 =A0 =A0 =A0"min": 2.5,
>>> =A0 =A0 =A0 =A0 =A0 =A0"max": 34.0
>>> =A0 =A0 =A0 =A0},
>>>
>>> Looking at how numbers add up, it looks like there have been 2
>>> requests, but 'sum' is 3 in http.requests for the same period
>>>
>>> =A0"requests": {
>>> =A0 =A0 =A0 "description": "number of HTTP requests",
>>> =A0 =A0 =A0 =A0 =A0 =A0"current": 3.0,
>>> =A0 =A0 =A0 =A0 =A0 =A0"sum": 3.0,
>>> =A0 =A0 =A0 =A0 =A0 =A0"mean": 0.05,
>>> =A0 =A0 =A0 =A0 =A0 =A0"stddev": 0.287,
>>> =A0 =A0 =A0 =A0 =A0 =A0"min": 0,
>>> =A0 =A0 =A0 =A0 =A0 =A0"max": 2
>>> =A0 =A0 =A0 =A0}
>>>
>>> tnx
>>>
>>> --
>>> :Matteo Caprari
>>> matteo.caprari@gmail.com
>>>
>>
>
>
>
> --
> :Matteo Caprari
> matteo.caprari@gmail.com
>