[rrd-users] Re: How to eliminata extrimely high values
bakira at bakira.org
Mon Sep 30 12:53:18 MEST 2002
Dear Alex ....
First i have to thank you for your responce and for your time spending for
>> First have a look at your "extremely high" values. Perhaps you
>> have a configuration problem and should get rid of those values
>> For instance: If you didn't set a proper MAX setting, you can expect
>> random high values when the device reboots or when the counters are
>> reset. These values can be *very* high, such as terabytes per second.
>> If you suffer from this, don't try to work around the problem but
>> solve the problem.
I am not using RRDTOOL for routers/switches/SNMP-enabled-devices
I am using RRDTOOL to plot time values as GAUGE.
I request a DNS entry and then i plot the responce time.
It could take from 3 millisecs to 4000 millisecs etc etc.
That means there is no MAX for my values ;-(
BTW ... Thank you for your script advice...
> However: How do you know that the 95th percentile doesn't result
> in another high value?
Actualy I dont.. But my expirence said that.. i saw the plots and with this
i can drop all this high values from all of my plots
Another algorithm i am thinkig is the folowing
Is it possible ???
Is it correct the folowing command ??
And a last question/wish to Tobi...
I have read the mailing list and i saw there is a need for persentile
While it is imposible to do that with CDEF/RPN and i have to write a script
to calculate this
is it possible to add this function native in a next version of RRDTOOL???
p.s. Sorry again for my bad english...
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