[rrd-users] Re: Preventing counter wraps

[Jerome Fleury]

Tobias Oetiker wrote:
> 
> Today you sent me mail regarding [rrd-users] Preventing counter wraps:
> 
> *>
> *> Is there any way to prevent RRDTool from detecting counter wraps ?
> *>
> *> I mean: when my equipment reloads itself, counters reset, and rrdtool
> *> assumes it is a counter wrap, that is not, and generates peaks on the
> *> graph.
> 
> 1. make sure you define MIN and MAX rate values for the datasource this
>    should catch most false positives ...

But not clean enough. Because values can still pass this check with 32
bits counters.

> 2. you can use DERIVE instead of counter ... this has no wrapp
>    detection ...

But I don't want to skip wrap detection :)

> if you were polling the 64bit hi* counters you could ...

My equipment doesn't do 64 bit counters.

What about a "nowrap" option to rrd_update ?

-- 
Jerome Fleury      none Networks / Freesbee
Network Team
+33 1 45082314

--
Unsubscribe mailto:rrd-users-request at list.ee.ethz.ch?subject=unsubscribe
Help        mailto:rrd-users-request at list.ee.ethz.ch?subject=help
Archive     http://www.ee.ethz.ch/~slist/rrd-users
WebAdmin    http://www.ee.ethz.ch/~slist/lsg2.cgi