Re: [Summary-Talk] Variations in page counts

[Jeff Whitmill <jeff@xxxxxxxxxxxx>]

Thank you! I'll look into this.


On Jan 13, 2006, at 1:07 AM, Jason Linhart wrote:

> I wouldn't expect the numbers to be as different as what you describe.
> There will almost always be some difference, but it should be smaller
> (usually two or there and almost always less than 50) and more
> consistent from page to page. The differences you are seeing might be 
> an
> indication of some kind of problem with your server.
>
> Report 10 - Page Requests is showing the number of successful requests
> to each page. Reports 100/110/120 - Daily/Weekly/Monthly Pages are
> showing the number of requests, successful or not, minus one less than
> the "Hit threshold for time history reports" (on the Memory
> Configuration page).
>
> The "Hit threshold for time history reports" is normally a small 
> number,
> two or three, though some people set it much higher, which is the same
> for every page and can usually be ignored. If it bothers you you can
> always set it to zero, though that takes more memory.
>
> The difference between successful requests and all requests is the
> number of errors for that item. On most servers, where the content has
> existed for the entire time period in question, there won't be any
> errors. So in the common case these numbers are the same. However some
> servers will once in a while fail to serve content even though it
> exists, resulting in detectable numbers of errors. This typically
> happens when the server is overloaded, but can also be caused by
> improperly formed HTTP requests.
>
> In theory these numbers can also be different if you have "Expire req.
> and ref. if not hit every N days (0-don't)" turned on, but in practice
> requests that are getting expired will almost never show up in the
> Daily/Weekly/Monthly reports at all.
>
> My guess is that your server is failing to serve the page about 1% of
> the time. This could be because of the server getting overloaded, or it
> might be invalid HTTP requests (though I have never seen more than a
> couple of those a day), or it could be caused by pages that are large
> enough that when the end user aborts the page load (for example by
> hitting the back button) the page hasn't already completed sending from
> the servers point of view and an abort is logged. Looking at the 
> Details
> : Log Fields : Result Code report and seeing which error codes, other
> than 404, are common should give you some hints about what might be
> happening.
>
> Jason
>
>
> Jeff Whitmill wrote:
>> A media client of ours sends the following report and questions:
>>
>>> I noticed an anomaly between the total pages numbers for the year on
>>> oursite.org/statistics/december2005/report-10.html and the monthly
>>> pages numbers on oursite.org/statistics/december2005/report-120.html.
>>>
>>> For the home page, it's a small difference:  770,785 on the monthly,
>>> cf. 769,243 on the total; a diff of 1,542 more on the monthly.
>>>
>>> But for the TV Schedules page, the difference is more pronounced:
>>> 427,932 on the monthly cf. 423,980 on the total; a diff of 3,952 more
>>> on the monthly - almost a 1% difference.
>>
>>> The weekly and daily pages are showing the same year totals as the
>>> monthly pages.  That kinda tosses out the theory that the data 
>>> degrade
>>> as you get more granular.  What do you think?  Why would we be 
>>> getting
>>> that much, and that inconsistent, of a variation?
>>>
>>> Or I could just leave it be and take it for what it is and not worry
>>> about it?
>>
>> What can I tell her about this?
>
> -- 
> Jason@Summary.Net
> --
> Dr. Seuss books . . . can be read and enjoyed on several levels. For
> example, 'One Fish Two Fish, Red Fish Blue Fish' can be deconstructed
> as a searing indictment of the narrow-minded binary counting system.
>     -- Peter van der Linden, Expert C Programming, Deep C Secrets

Jeff Whitmill
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The Music of Your Name - http://www.moyn.org/
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