This plugin collects TCP connections state and UDP socket counts by using
lsof
.
Global configuration options
In addition to the plugin-specific configuration settings, plugins support
additional global and plugin configuration settings. These settings are used to
modify metrics, tags, and field or create aliases and configure ordering, etc.
See the CONFIGURATION.md for more details.
Configuration
# Read TCP metrics such as established, time wait and sockets counts.
[[inputs.netstat]]
# no configuration
Metrics
Supported TCP Connection states are follows.
- established
- syn_sent
- syn_recv
- fin_wait1
- fin_wait2
- time_wait
- close
- close_wait
- last_ack
- listen
- closing
- none
TCP Connection State measurements
Meta:
Measurement names:
- tcp_established
- tcp_syn_sent
- tcp_syn_recv
- tcp_fin_wait1
- tcp_fin_wait2
- tcp_time_wait
- tcp_close
- tcp_close_wait
- tcp_last_ack
- tcp_listen
- tcp_closing
- tcp_none
If there are no connection on the state, the metric is not counted.
UDP socket counts measurements
Meta:
Measurement names:
Example Output
netstat tcp_close=0i,tcp_close_wait=0i,tcp_closing=0i,tcp_established=14i,tcp_fin_wait1=0i,tcp_fin_wait2=0i,tcp_last_ack=0i,tcp_listen=1i,tcp_none=46i,tcp_syn_recv=0i,tcp_syn_sent=0i,tcp_time_wait=0i,udp_socket=10i 1668520568000000000