Collectd Installation

Ubuntu 14.04 Installation

~$ sudo apt-get update && sudo apt-get install collectd collectd-utils -y

Configuration

Backup the conf

~$ sudo cp /etc/collectd/collectd.conf /etc/collectd/collectd.conf_backup

Edit the conf

~$ sudo vi /etc/collectd/collectd.conf

Uncomment the network plugin to feed influxdb

LoadPlugin network

Configure the network plugin

<Plugin network>
     <Server "127.0.0.1" "25826">
          Username "influx"
          Password "influxdb"
     </Server>
</Plugin>

Restart collectd and verify

~$ sudo service collectd restart

Verify collectd is attempting to send data to the specified source

~$ sudo tcpdump -i lo -p -n dst port 25826
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on lo, link-type EN10MB (Ethernet), capture size 65535 bytes
02:13:34.693172 IP 127.0.0.1.41099 > 127.0.0.1.25826: UDP, length 1323
02:13:44.681082 IP 127.0.0.1.41099 > 127.0.0.1.25826: UDP, length 1338

Update influx db conf

Enable influx db to ingest collectd data

~$ sudo vi /etc/influxdb/influxdb.conf

[[collectd]]
  enabled = true
  bind-address = ":25826" # the bind address
  database = "collectd" # Name of the database that will be written to
  retention-policy = ""
  batch-size = 5000 # will flush if this many points get buffered
  batch-pending = 10 # number of batches that may be pending in memory
  batch-timeout = "10s"
  read-buffer = 0 # UDP read buffer size, 0 means to use OS default
  typesdb = "/usr/share/collectd/types.db"

~$ sudo service influxdb restart