[rrd-users] Re: Spikes (1.0.8)

[Tobias Oetiker]

Today you sent me mail regarding [rrd-users] Re: Spikes (1.0.8):

*> Hi!
*> 
*> I have a similar problem with one of the data-collections of one of my
*> routers. I'm using a perlscript i made myself and the problem occurs when
*> colleting ucast and NUcast packet and then making a summarized graph. I
*> get spikes of up to 14-15M pkt/s. Shouldn't be more than a few hundred at
*> most.
*> 
*> I added a littel debug routine in my script to check that the values i
*> get is correct and they look OK but once they get into the RRD they get
*> huge.

It would be great if we could get to the bottom of this ... could you try to
log the data you are feeding into rrdtool to a separate file and then once
the spike give me the input data which caused it ...

cheers
tobi

*> /Christian
*> 
*> -----Original Message-----
*> From: Patrick Myers [mailto:pat.myers at mcc.ac.uk]
*> Sent: Friday, December 03, 1999 11:08 AM
*> To: Tobias Oetiker
*> Cc: Jeff Wheat; rrd-users at list.ee.ethz.ch
*> Subject: [rrd-users] Re: Spikes (1.0.8)
*> 
*> 
*> Is there any way to retropectively remove such spikes from the database.
*> 
*> Pat
*> 
*> On Fri, 3 Dec 1999, Tobias Oetiker wrote:
*> 
*> > Yesterday you sent me mail regarding RE: [rrd-users] Re: Spikes (1.0.8):
*> > 
*> > *> No, we are not mixing bits and bytes... The spikes occur
*> > *> when the routers are reloaded or just sometimes randomly.
*> > *> I can mail you dumps of the rrds if that helps. The target
*> > *> machine is a FreeBSD 3.3 Intel unix server.
*> > 
*> > when you reset the router, then its internal counters get reset. If you
*> have
*> > not set proper min and max values in the DS definitions it can be that RRD
*> > tool finds very large values ... If you think there is a bug in rrdtool it
*> > would help a lot if you could produce an example set of data which
*> > reproduces it ... 
*> > 
*> > cheers
*> > tobi
*> > *> 
*> > *> Best regards,
*> > *> Jeff
*> > *> 
*> > *> > -----Original Message-----
*> > *> > From: rrd-users-bounce at list.ee.ethz.ch
*> > *> > [mailto:rrd-users-bounce at list.ee.ethz.ch]On Behalf Of Tobias Oetiker
*> > *> > Sent: Wednesday, December 01, 1999 6:32 PM
*> > *> > To: Jeff Wheat
*> > *> > Cc: rrd-users at list.ee.ethz.ch
*> > *> > Subject: [rrd-users] Re: Spikes (1.0.8)
*> > *> >
*> > *> >
*> > *> > Yesterday you sent me mail regarding [rrd-users] Spikes (1.0.8):
*> > *> >
*> > *> > *> Hi there. I know that this has been asked a bunch of times and
*> > *> > have seen
*> > *> > *> different things to do about it, but I am unable to locate the
*> > *> > information
*> > *> > *> in the mail list archives. In short, I have a large number of
*> > *> > rrd's that
*> > *> > *> have
*> > *> > *> the min set to 0 and the max set to the maximum speed of the
*> interfaces
*> > *> > *> being
*> > *> > *> monitored. I am getting spikes in my databases, for instance,
*> > *> > an 11Mb spike
*> > *> > *> on
*> > *> > *> a 1.54M interface. I have tried to use rrdtool dump / restore
*> > *> > -r to correct
*> > *> > *> the
*> > *> > *> problem without any luck. What do I need to do to get rid of
*> > *> > these spikes?
*> > *> > *> All
*> > *> > *> help is greatly appreciated.
*> > *> >
*> > *> > any chance you are mixing bits and bytes ?
*> > *> >
*> > *> > cheers
*> > *> > tobi
*> > *> > *>
*> > *> > *> Best regards,
*> > *> > *> Jeff
*> > *> > *>
*> > *> > *> --
*> > *> > *> * To unsubscribe from the rrd-users mailing list, send a
*> > *> > message with the
*> > *> > *>   subject: unsubscribe to rrd-users-request at list.ee.ethz.ch
*> > *> > *>
*> > *> > *>
*> > *> >
*> > *> > --
*> > *> >  ______    __   _
*> > *> > /_  __/_  / /  (_) Oetiker, Timelord & SysMgr @ EE-Dept ETH-Zurich
*> > *> >  / // _ \/ _ \/ / TEL: +41(0)1-6325286  FAX:...1517  ICQ: 10419518
*> > *> > /_/ \.__/_.__/_/ oetiker at ee.ethz.ch http://ee-staff.ethz.ch/~oetiker
*> > *> >
*> > *> > --
*> > *> > * To unsubscribe from the rrd-users mailing list, send a message with
*> the
*> > *> >   subject: unsubscribe to rrd-users-request at list.ee.ethz.ch
*> > *> >
*> > *> >
*> > *> 
*> > 
*> > 
*> 
*> 

-- 
 ______    __   _
/_  __/_  / /  (_) Oetiker, Timelord & SysMgr @ EE-Dept ETH-Zurich
 / // _ \/ _ \/ / TEL: +41(0)1-6325286  FAX:...1517  ICQ: 10419518 
/_/ \.__/_.__/_/ oetiker at ee.ethz.ch http://ee-staff.ethz.ch/~oetiker

--
* To unsubscribe from the rrd-users mailing list, send a message with the
  subject: unsubscribe to rrd-users-request at list.ee.ethz.ch