telegraf/plugins/inputs/conntrack
Zack Zatkin-Gold 61be19b1f0 Fix telegraf example arguments (#2788)
Many of the examples provided within documentation are using a single
dash for the command line arguments, but the telegraf executable
explicitly has two dashes.

There are also some inconsistencies with the ordering of the command
line argument examples.  I've ordered them so that the examples will
show: config, config-directory, input-filter, test
2017-05-12 15:22:29 -07:00
..
README.md Fix telegraf example arguments (#2788) 2017-05-12 15:22:29 -07:00
conntrack.go use AddError everywhere (#2372) 2017-04-24 11:13:26 -07:00
conntrack_notlinux.go
conntrack_test.go

README.md

Conntrack Plugin

Collects stats from Netfilter's conntrack-tools.

The conntrack-tools provide a mechanism for tracking various aspects of network connections as they are processed by netfilter. At runtime, conntrack exposes many of those connection statistics within /proc/sys/net. Depending on your kernel version, these files can be found in either /proc/sys/net/ipv4/netfilter or /proc/sys/net/netfilter and will be prefixed with either ip_ or nf_. This plugin reads the files specified in its configuration and publishes each one as a field, with the prefix normalized to ip_.

In order to simplify configuration in a heterogeneous environment, a superset of directory and filenames can be specified. Any locations that don't exist will be ignored.

For more information on conntrack-tools, see the Netfilter Documentation.

Configuration:

 # Collects conntrack stats from the configured directories and files.
 [[inputs.conntrack]]
   ## The following defaults would work with multiple versions of conntrack.
   ## Note the nf_ and ip_ filename prefixes are mutually exclusive across
   ## kernel versions, as are the directory locations.

   ## Superset of filenames to look for within the conntrack dirs.
   ## Missing files will be ignored.
   files = ["ip_conntrack_count","ip_conntrack_max",
            "nf_conntrack_count","nf_conntrack_max"]

   ## Directories to search within for the conntrack files above.
   ## Missing directrories will be ignored.
   dirs = ["/proc/sys/net/ipv4/netfilter","/proc/sys/net/netfilter"]

Measurements & Fields:

  • conntrack
    • ip_conntrack_count (int, count): the number of entries in the conntrack table
    • ip_conntrack_max (int, size): the max capacity of the conntrack table

Tags:

This input does not use tags.

Example Output:

$ ./telegraf --config telegraf.conf --input-filter conntrack --test
conntrack,host=myhost ip_conntrack_count=2,ip_conntrack_max=262144 1461620427667995735