Availability Report calculation

[Gee Pee <peter.welter (at) gmail.com>]

Hi Henrik,

I'm running on my test-server Hobbit 4.1.2p1. I've run the 3 cronjobs  
from the hobbitreports.sh-header (a great and very welcome feature!)  
and I'm studying the generated reports. I see a discrepancy between  
the man-page and the calculations. I have no REPORRTIME set. I would  
like to read your comment on my two observations.

First: When I look at yesterday's generated availability report, it  
says everything is fine (the solid green boxes). But when I look at  
the history, I can see that soms services (msgs fi) had the status  
'clear' the entire day(!), so it should be calculated to 'red'  
according to the man-page (see below). However, I _do_ prefer this  
behaviour, that clear is calculated as green, because this means that  
(1) the host was up, (2) the test has run and valid data was  
received. But than the man-pages should be adapted.



Second: I also have some tests that had the status 'purple' the  
entire day(!) and that is treated as 'OK' too (the solid green  
boxes)!? This is correct according to the same man-page, but I would  
say that purple should not be calculated as solid green boxes. In my  
case NO test data was reported the entire day. I would suggest it  
should show on the availability report in red digits 0%.



Kind regards and thanks again (and again and...) for making such a  
GREAT product!

Peter

From the man-page (.../bb-hosts.5.html#lbAK):
[snip]

* Only measurements done during the given time period is used for the  
calculation.
* "blue" time reduces the length of the report interval, so if you  
are generating a report for a 10-hour period and there are 20 minutes  
of "blue" time, then the availability calculation will consider the  
reporting period to be 580 minutes (10 hours minus 20 minutes). This  
allows you to have scheduled downtime during the REPORTTIME interval  
without hurting your availability; this is (I believe) the whole idea  
of the downtime being "planned".
* "red" and "clear" status counts as downtime; "yellow" and "green"  
count as uptime. "purple" time is ignored.

The availability calculation correctly handles status changes that  
cross into/out of a REPORTTIME interval.

If no REPORTTIME is given, the standard 24x7 calculation is used.

[snip]