[Ntop-dev] Bug#471862: rrd_create error: Invalid alpha: must be between 0 and 1
Ola Lundqvist
opal at debian.org
Tue Mar 25 20:31:38 CET 2008
Hi David
On Tue, Mar 25, 2008 at 10:55:55AM -0400, David Prévot wrote:
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> Ola Lundqvist a écrit :
> > Hi David
>
> Hi Lucas
>
> > Interesting notes. If you remove the /var/lib/ntop/interfaces/*/*.rrd files
> > and then restart ntop, do it work then?
>
> The problem is that the directories /var/lib/ntop/interfaces/* are
> already empties (after a fresh install, or an upgrade).
Aha! Interesting.
> If I stop ntop (3:3:3-4 working fine after a reboot), remove the rdd
> file, and then start ntop, I just reproduce the same bug (no file is
> created, same logs every ten seconds, and Network Load Statistics unusable).
>
> > And if you after that restarts ntop a couple of times do it still work?
>
> Each time I restart ntop, I have the same logs in var/log/syslog [0] and
> some parts of ntop (Network Load Statistics for example) doesn't work.
Strange. The files are not created I assume? Can you send me a listing of the
permissions on those files _and directories_. Both for 3.2 version that works
and the 3.3 that do not work and also on 3.3 version after reboot.
> > Did I interpret you that ntop works just fine after reboot?
>
> Yes, and it is the only way to stop the errors in syslog, and make the
> Network Load Statistics work. It is the same on a fresh install and
> upgrade from 3:3.2-10.1. I can reproduce it on amd64 and i686 (on
> different computers) with :
Now I'm able to reproduce the problem myself. I actually found another problem first
and do not really understand how it worked last time I tried.
> # aptitude purge ntop
> # aptitude install ntop
> # ntop -A && invoke-rc.d ntop start
I'll see what I can do about the problem now when I know how to reproduce it.
Best regards,
// Ola
> Best Regards
>
> David
>
> [0]
> Mar 25 09:10:04 Lapin ntop[29288]: **WARNING** RRD:
> rrd_create(/var/lib/ntop/interfaces/eth0/throughput.rrd) error: Invalid
> alpha: must be between 0 and 1
> Mar 25 09:10:04 Lapin ntop[29288]: **WARNING** RRD:
> rrd_update(/var/lib/ntop/interfaces/eth0/throughput.rrd) error: opening
> '/var/lib/ntop/interfaces/eth0/throughput.rrd': Aucun fichier ou
> répertoire de ce type
> Mar 25 09:10:09 Lapin ntop[29288]: **WARNING** RRD:
> rrd_create(/var/lib/ntop/rrd/interfaces/eth0/AS/20766/ifInOctets.rrd)
> error: Invalid alpha: must be between 0 and 1
> Mar 25 09:10:09 Lapin ntop[29288]: **WARNING** RRD:
> rrd_update(/var/lib/ntop/rrd/interfaces/eth0/AS/20766/ifInOctets.rrd)
> error: opening
> '/var/lib/ntop/rrd/interfaces/eth0/AS/20766/ifInOctets.rrd': Aucun
> fichier ou répertoire de ce type
> Mar 25 09:10:09 Lapin ntop[29288]: **WARNING** RRD:
> rrd_create(/var/lib/ntop/rrd/interfaces/eth0/AS/20766/ifInPkts.rrd)
> error: Invalid alpha: must be between 0 and 1
> Mar 25 09:10:09 Lapin ntop[29288]: **WARNING** RRD:
> rrd_update(/var/lib/ntop/rrd/interfaces/eth0/AS/20766/ifInPkts.rrd)
> error: opening
> '/var/lib/ntop/rrd/interfaces/eth0/AS/20766/ifInPkts.rrd': Aucun fichier
> ou répertoire de ce type
> Mar 25 09:10:09 Lapin ntop[29288]: **WARNING** RRD:
> rrd_create(/var/lib/ntop/rrd/interfaces/eth0/AS/20766/ifOutOctets.rrd)
> error: Invalid alpha: must be between 0 and 1
> Mar 25 09:10:09 Lapin ntop[29288]: **WARNING** RRD:
> rrd_update(/var/lib/ntop/rrd/interfaces/eth0/AS/20766/ifOutOctets.rrd)
> error: opening
> '/var/lib/ntop/rrd/interfaces/eth0/AS/20766/ifOutOctets.rrd': Aucun
> fichier ou répertoire de ce type
> Mar 25 09:10:09 Lapin ntop[29288]: **WARNING** RRD:
> rrd_create(/var/lib/ntop/rrd/interfaces/eth0/AS/20766/ifOutPkts.rrd)
> error: Invalid alpha: must be between 0 and 1
> Mar 25 09:10:09 Lapin ntop[29288]: **WARNING** RRD:
> rrd_update(/var/lib/ntop/rrd/interfaces/eth0/AS/20766/ifOutPkts.rrd)
> error: opening
> '/var/lib/ntop/rrd/interfaces/eth0/AS/20766/ifOutPkts.rrd': Aucun
> fichier ou répertoire de ce type
> Mar 25 09:10:09 Lapin ntop[29288]: **WARNING** RRD:
> rrd_create(/var/lib/ntop/rrd/interfaces/eth0/AS/numAS.rrd) error:
> Invalid alpha: must be between 0 and 1
> Mar 25 09:10:09 Lapin ntop[29288]: **WARNING** RRD:
> rrd_update(/var/lib/ntop/rrd/interfaces/eth0/AS/numAS.rrd) error:
> opening '/var/lib/ntop/rrd/interfaces/eth0/AS/numAS.rrd': Aucun fichier
> ou répertoire de ce type
> Mar 25 09:10:14 Lapin ntop[29288]: **WARNING** RRD:
> rrd_create(/var/lib/ntop/interfaces/eth0/throughput.rrd) error: Invalid
> alpha: must be between 0 and 1
> Mar 25 09:10:14 Lapin ntop[29288]: **WARNING** RRD:
> rrd_update(/var/lib/ntop/interfaces/eth0/throughput.rrd) error: opening
> '/var/lib/ntop/interfaces/eth0/throughput.rrd': Aucun fichier ou
> répertoire de ce type
> Mar 25 09:10:24 Lapin ntop[29288]: **WARNING** RRD:
> rrd_create(/var/lib/ntop/interfaces/eth0/throughput.rrd) error: Invalid
> alpha: must be between 0 and 1
> Mar 25 09:10:24 Lapin ntop[29288]: **WARNING** RRD:
> rrd_update(/var/lib/ntop/interfaces/eth0/throughput.rrd) error: opening
> '/var/lib/ntop/interfaces/eth0/throughput.rrd': Aucun fichier ou
> répertoire de ce type
> Mar 25 09:10:34 Lapin ntop[29288]: **WARNING** RRD:
> rrd_create(/var/lib/ntop/interfaces/eth0/throughput.rrd) error: Invalid
> alpha: must be between 0 and 1
> Mar 25 09:10:34 Lapin ntop[29288]: **WARNING** RRD:
> rrd_update(/var/lib/ntop/interfaces/eth0/throughput.rrd) error: opening
> '/var/lib/ntop/interfaces/eth0/throughput.rrd': Aucun fichier ou
> répertoire de ce type
>
> [same two last lines every ten seconds, and the (number of) errors in
> the directory /var/lib/ntop/rrd/interfaces/eth0/AS/ varies in eatch restart]
>
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--
--------------------- Ola Lundqvist ---------------------------
/ opal at debian.org Annebergsslingan 37 \
| ola at opalsys.net 654 65 KARLSTAD |
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