nagios && rrd

[Stanley Hopcroft]

Dear Ladies and Gentlemen,

This little black ducks 0.02 worth (that's cents there folks) is that 
RRDs are superior to databases for __time series__ data because

. leading software such as MRTG, Orca, Ntop and so on have made that
conclusion, in some cases switching from other means of data persistence
(mySQL for Ntop)

. RRDs have a fixed size

. RRDs automatically deal with exceptions (data that is too large or 
small) and missing data (by interpolation). The update application would 
have to deal with these cases otherwise

. have built in anomaly detection (Holt-Winters forecasting in RRD dev 
releases) that aids the identification of problems or faults for time 
series that exhibit periodicity (eg a router interface that shows 
a greater range of values and more variation during the business hours 
than otherwise exhibits diurnal periodicity)

. are popular with those developing network management 
applications (Cacti, Cricket, RRDFrameWork)

Yours sincerely.

-- 
------------------------------------------------------------------------
Stanley Hopcroft
------------------------------------------------------------------------

'...No man is an island, entire of itself; every man is a piece of the
continent, a part of the main. If a clod be washed away by the sea,
Europe is the less, as well as if a promontory were, as well as if a
manor of thy friend's or of thine own were. Any man's death diminishes
me, because I am involved in mankind; and therefore never send to know
for whom the bell tolls; it tolls for thee...'

from Meditation 17, J Donne.


-------------------------------------------------------
This sf.net email is sponsored by:ThinkGeek
Welcome to geek heaven.
http://thinkgeek.com/sf
_______________________________________________
Nagios-users mailing list
Nagios-users at lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/nagios-users
::: Please include Nagios version, plugin version (-v) and OS when reporting any issue. 
::: Messages without supporting info will risk being sent to /dev/null