[smokeping-users] Re: better granularity step 300

hans smokeping at m05.yer.at
Wed Mar 22 23:33:20 MET 2006



hi 

thanks to all for response. 
i do not understand, how to calculate the db-parameters. 
but i will take it, as you described. 
thanks also for the tip of increased io. of course the 
database-files will get much larger. but are these files 
indexed ? or has the process to read the files 
sequentially ? 

currently i can go back about 3 days with a time granularity 
of 5 minutes. does your calculation give the possibility 
of 3 days with 1 minute ? 
or should the first line look like this 
AVERAGE  0.5    1  8640  # 3*24 hours of full data

best regards 
hans 

-- 


On Wed, Mar 08, 2006 at 04:44:11PM +0100, Antonn Faltnek wrote:
> Dne støeda 08 bøezen 2006 16:09 hans napsal(a):
> > hi
> >
> > i have the following default configuration at smokeping
> >
> > *** Database ***
> > step     = 300
> > pings    = 20
> >
> > i want to have a better granularity, because a break
> > of a leased line of even 4 minutes couldn't be detect
> > in the worst case.
> >
> > what happens, if i change to
> > step     = 30
> > pings    = 10
> >
> > would rrdtools show correctly ?
> > should i delete the existings rrd-files bevor ?
> >
> > best regards
> > hans
> 
> Hi,
> 
> you have to reconfigure whole database definition
> 
> *** Database ***
> # every 30 seconds send 10 pings (it is quite lot IMHO)
> step     = 30
> pings    = 10
> 
> # consfn mrhb steps total
> 
> AVERAGE  0.5    1  2880 # 24 hours of full data
> AVERAGE  0.5   60   1344 # 28 days of 1half hour averages
>     MIN  0.5   60 1344
>     MAX  0.5   60 1344
> AVERAGE  0.5  720  1600 # 400 days of 6hour averages
>     MAX  0.5  720  1600
>     MIN  0.5  720  1600
> 
> The RRD files will be quite big so the polling machine will have quite big IO 
> wait.
> 
> -- 
> Antonín Faltýnek
> 
> e-mail: tonda at kaf.cz
> icq:    76225401
> 
> ------------------------------------------------------------
> You can do that without any technological mumbo-jumbo...
> 
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