nfsen-ng: nfsen-ng: 400 - Bad Request. rrd_xport failed.

Dear All,

I am not sure if I am right here. I didn’t find a mailing for “nfsen-ng”

My issue I don’t get any data on the GUI.

I followed the instructions at https://github.com/mbolli/nfsen-ng to install on a fresh installed “Ubuntu 18.04.1 LTS” “nfdump” wasn’t found as packaged, so I compiled from source.

This is my file nfsen-ng/backend/settings/settings.php

<?php
/**
 * config file for nfsen-ng
 *
 * remarks:
 * * database name = datasource class name (case-sensitive)
 * * log priority should be one of the predefined core constants prefixed with LOG_
 */

$nfsen_config = array(
    'general' => array(
        'ports' => array(
            80, 22, 53,
        ),
        'sources' => array(
            'cs-sl0-s6506',
        ),
        'db' => 'RRD',
    ),
    'frontend' => array(
        'reload_interval' => 60,
    ),
    'nfdump' => array(
        'binary' => '/usr/bin/nfdump',
        'profiles-data' => '/var/nfdump/profiles-data',
        'profile' => 'live',
        'max-processes' => 2, // maximum number of concurrently running nfdump processes
    ),
    'db' => array(
        'Akumuli' => array(
            //'host' => 'localhost',
            //'port' => 8282,
        ),
        'RRD' => array()
    ),
    'log' => array(
        'priority' => LOG_DEBUG, // LOG_INFO, LOG_DEBUG is very talkative!
    )
);

I run

nfcapd -w -D -S 2 -B 1024000 -l /var/nfdump/profiles-data/live/cs-sl0-s6506 -p 10001

which writes sucessfully data in subdiretories like this

/var/nfdump/profiles-data/live/cs-sl0-s6506/2018/11/13/16/nfcapd.201811131620

But when I open my web-browser I get an error message:

Got 400 - Bad Request. rrd_xport failed. opening ‘/var/www/html/nfsen-ng/backend/datasources/data/cs-sl0-s6506.rrd’: No such file or directory

and syslog shows at the same time:

Nov 13 16:52:52 hpg911 apache2: nfsen-ng: Was not able to find /var/www/html/nfsen-ng/backend/datasources/data/cs-sl0-s6506.rrd Nov 13 16:52:52 hpg911 apache2: nfsen-ng: 400 - Bad Request. rrd_xport failed. opening ‘/var/www/html/nfsen-ng/backend/datasources/data/cs-sl0-s6506.rrd’: No such file or directory

I do not know where to configure a process to convert the pcap data to rrd files. I gave full permissions for /var/www/html/nfsen-ng/backend/datasources/data/ so it shouldn’t be a permissions issue.

RRDtool 1.7.0 is installed,

apachectl -M shows php7_module is installed, but nothing about rrd, probably OK.

“pecl list” tells me

rrd 2.0.1 stable

I started manually “./cli.php start”

./cli.php status Running: 14178

Any help is welcome.

// Hans