Availability Report anomally .... 🔗 link

Hi All,
 
We're using Hobbit to pretty much monitor most things - and it works
fine. One of our sections likes to keep track of the availablility of
their web page and they have been using hobbit for this and are happy
with what it gives them, except for an anomally from last month.
When the availability report is run for last month I get a green diamond
(presuming this to mean that it's 100%). We know it's not 100% by simply
clicking on the http diamond and performing a history of the service.
Why doesn't the monthly report tell us what is obviously in the
history??? It might be a case of resolution as the downtimes have only
been 15seconds here , 50 seconds there, 25 seconds. Here are the screen
shots to show this:
 
 
http://tinyurl.com/yr2kz6
 
http://tinyurl.com/39q56p
 
thanks
 
Geoff :-)
 
  <http://www.fujixerox.com.au/>; 	  	  	
Geoff Swavley
Infrastructure Specialist
Business Services
 
Fuji Xerox Australia Pty Limited
Level 1, 101 Waterloo Road
MACQUARIE PARK NSW 2113 AUSTRALIA
 

Phone 
Fax
email
web	 (02) 9856 5468
(02) 9856 5003
user-c1165b157169@xymon.invalid <mailto:user-c1165b157169@xymon.invalid>

www.FujiXerox.com.au <http://www.fujixerox.com.au/>; 	
	
 	
This email (including any attachments) is confidential and may contain
personal information within the Privacy Act 1988 (Cth). Fuji Xerox
Australia make no warranties that it is free of viruses or has not been
subject to unauthorised interference. If you have received it in error,
please understand that confidentiality is not waived, please inform the
sender by reply email, and delete it (and all copies) from your system.

Am Mittwoch, 4. Juli 2007 02:11 schrieb Geoff Swavley:

within this 4 weeks (2419200 sec) there are 115sec unavailabillity (the 
second screenshot; do you know why?). This results in 99.995% 
availabilty, and if you show this value with 2 digits you get 100.00% 
(a very good value!).

Good Luck

Rolf

On Wed, Jul 04, 2007 at 10:11:43AM +1000, Geoff Swavley wrote:

green actually means 99,995% available.

I don't recall where this number comes from, but I believe it was
adopted from the way the old Big Brother reports were built.

You can change the 99,995% setting by putting 
   BBREPGREEN=100
in hobbitserver.cfg

There's also a debugging utility in the Hobbit sources that can help
track down such problems. When you build Hobbit, a small utility is
built in hobbit-4.2.0/lib/availability - this analyzes the history
log in the same way that the reporting module does. So you can run it
like this:

./lib/availability ~hobbit/data/hist/myserver.http \
	`date +%s --date="1 Jun 2007"` \
	`date +%s --date="1 Jul 2007"

The output is rather detailed, but buried inside you'll find the
analysis of how many seconds each color was. It looks like this:

    2007-07-04 09:48:54 Duration for color 0: 6610128
    2007-07-04 09:48:54 Duration for color 1: 0
    2007-07-04 09:48:54 Duration for color 2: 0
    2007-07-04 09:48:54 Duration for color 3: 330548
    2007-07-04 09:48:54 Duration for color 4: 0
    2007-07-04 09:48:54 Duration for color 5: 6853
    2007-07-04 09:48:54 Color 0: Count=31, pct=95.14
    2007-07-04 09:48:54 Color 1: Count=0, pct=0.00
    2007-07-04 09:48:54 Color 2: Count=0, pct=0.00
    2007-07-04 09:48:54 Color 3: Count=5, pct=4.76
    2007-07-04 09:48:54 Color 4: Count=0, pct=0.00
    2007-07-04 09:48:54 Color 5: Count=26, pct=0.10
    2007-07-04 09:48:54 Availability: 99.90, color =4

Color 5 is red, 4 is yellow, 3 is purple, 2 is blue, 1 is clear, 
0 is green.


Regards,
Henrik

On Wed, Jul 04, 2007 at 10:00:28AM +0200, Henrik Stoerner wrote:

BTW - the history log you showed in the screenshot has 128 seconds of
outage during June.

The green level of 99,995 means you can have
   (1-0,99995)*60*60*24*30 = 129,6 seconds
outage and remain green.

So you just managed to squeak past the 0,005% limit.


Regards,
Henrik