[collectd] Network Help

Gibbs ugs at dangibbs.uk
Thu Jun 4 19:05:58 CEST 2015


Hi,

I'm setting up collectd for the first time and am having problems
getting data on a central server. To narrow the problem down and test I
only have the logfile, syslog, csv, memory, network and rrdtool plugins
enabled.

The central server, server1, has the following config;

<Plugin network>
  <Listen "server1.domain.tld" "25826">
    SecurityLevel "Sign"
    AuthFile "/etc/collectd/passwd"
    Interface "venet0"
  </Listen>
</Plugin>

The 'clients' have the following;

<Plugin network>
  <Server "server1.domain.tld" "25826">
    SecurityLevel "Sign"
    Username "username"
    Password "password"
  </Server>
</Plugin>

I have logging set to 'notice' and nothing is being reported. When I run
a tcp dump with tcpdump -i venet0 -p -s 1500 udp port 25826 I can see
that the clients are connecting;

17:06:19.760249 IP server3.domain.tld.38890 > server1.domain.tld.25826:
UDP, length 1386
17:06:30.395712 IP server2.domain.tld.49709 > server1.domain.tld.25826:
UDP, length 1379
17:15:19.755512 IP server3.domain.tld.38890 > server1.domain.tld.25826:
UDP, length 1366
17:15:30.376233 IP server2.domain.tld.49709 > server1.domain.tld.25826:
UDP, length 1377
17:24:19.753587 IP server3.domain.tld.38890 > server1.domain.tld.25826:
UDP, length 1393
17:24:30.372344 IP server2.domain.tld.49709 > server1.domain.tld.25826:
UDP, length 1382

I have the csv tool logging to /tmp/collectd to test. When I look in
/tmp/collectd on the central server there is no data for the other
servers? /var/lib/collectd/rrd/ also doesn't contain any data for the
clients.

Where is the data being stored and how can I debug this further? I am
using Ubuntu 14.04 LTS.

Sorry new to all of this so I might be overlooking something obvious. I
have google'd to no avail.

Cheers,

Gibbs

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