Hi Luca

I have recently updated to the latest version of the ntop package in Debian.
I got this bug report. Do you know what that problem could be?

Best regards,

// Ola

----- Forwarded message from David Prévot <[EMAIL PROTECTED]> -----

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Delivery-date: Thu, 20 Mar 2008 19:41:31 +0100
Subject: Bug#471862: rrd_create error: Invalid alpha: must be between 0 and 1
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X-Debian-PR-Message: report 471862
X-Debian-PR-Package: ntop
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X-Debian-PR-Source: ntop
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From: David Prévot <[EMAIL PROTECTED]>
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Package: ntop
Version: 3:3.3-4
Severity: normal

--- Please enter the report below this line. ---

Hi,

After upgrading ntop to 3:3.3-4, the rrdPlugin (activated by default) is
not usable anymore. Some functionnality (Network Load for example) are
broken due to this. I tried a fresh install (on amd64), the problem is
the same.

Here is the information I had when launching ntop (or reactavating the
rrdPlugin) in the syslog.

> **WARNING** RRD: rrd_create(/var/lib/ntop/interfaces/eth0/throughput.rrd) 
> error: Invalid alpha: must be between 0 and 1
> **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
> **WARNING** RRD: 
> rrd_create(/var/lib/ntop/rrd/interfaces/eth0/ethernetPkts.rrd) error: Invalid 
> alpha: must be between 0 and 1
> **WARNING** RRD: 
> rrd_update(/var/lib/ntop/rrd/interfaces/eth0/ethernetPkts.rrd) error: opening 
> '/var/lib/ntop/rrd/interfaces/eth0/ethernetPkts.rrd': Aucun fichier ou 
> répertoire de ce type
> **WARNING** RRD: 
> rrd_create(/var/lib/ntop/rrd/interfaces/eth0/broadcastPkts.rrd) error: 
> Invalid alpha: must be between 0 and 1
> **WARNING** RRD: 
> rrd_update(/var/lib/ntop/rrd/interfaces/eth0/broadcastPkts.rrd) error: 
> opening '/var/lib/ntop/rrd/interfaces/eth0/broadcastPkts.rrd': Aucun fichier 
> ou répertoire de ce type
> **WARNING** RRD: 
> rrd_create(/var/lib/ntop/rrd/interfaces/eth0/ethernetBytes.rrd) error: 
> Invalid alpha: must be between 0 and 1
> **WARNING** RRD: 
> rrd_update(/var/lib/ntop/rrd/interfaces/eth0/ethernetBytes.rrd) error: 
> opening '/var/lib/ntop/rrd/interfaces/eth0/ethernetBytes.rrd': Aucun fichier 
> ou répertoire de ce type
> **WARNING** RRD: 
> rrd_create(/var/lib/ntop/rrd/interfaces/eth0/knownHostsNum.rrd) error: 
> Invalid alpha: must be between 0 and 1
> **WARNING** RRD: 
> rrd_update(/var/lib/ntop/rrd/interfaces/eth0/knownHostsNum.rrd) error: 
> opening '/var/lib/ntop/rrd/interfaces/eth0/knownHostsNum.rrd': Aucun fichier 
> ou répertoire de ce type
[lots more]

Thanks for maintening ntop

David

--- System information. ---
Architecture: i386
Kernel:       Linux 2.6.24-1-686

Debian Release: lenny/sid
  990 unstable        lapin
  990 testing         lapin
  500 etch            lapin
    1 experimental    lapin

--- Package information. ---
Depends                 (Version) | Installed
=================================-+-=================
libc6                  (>= 2.5-5) | 2.7-9
libfreetype6             (>= 2.2) | 2.3.5-1+b1
libgd2-noxpm     (>= 2.0.34~rc1)  |
 OR libgd2-xpm    (>= 2.0.34~rc1) | 2.0.36~rc1~dfsg-1
libgdbm3                          | 1.8.3-3
libjpeg62                         | 6b-14
libpcap0.7                        | 0.7.2-9
libpng12-0          (>= 1.2.13-4) | 1.2.15~beta5-3
libssl0.9.8         (>= 0.9.8c-1) | 0.9.8g-7
zlib1g               (>= 1:1.2.1) | 1:1.2.3.3.dfsg-11
debconf               (>= 1.2.0)  | 1.5.20
 OR debconf-2.0                   |
adduser                           | 3.106





----- End forwarded message -----

-- 
 --------------------- Ola Lundqvist ---------------------------
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