netstat

Documentation

Overview

Package netstat implements metrics collection related to TCP and UDP

Index

• type ExtendedMetrics
• type NetStat
  • func New(m *metrics.MetricContext, Step time.Duration) *NetStat
  • func (s *NetStat) Collect()
• type TCPStat
• type UDPStat

Types

type ExtendedMetrics

type ExtendedMetrics struct {
	SyncookiesSent   *metrics.Counter
	SyncookiesRecv   *metrics.Counter
	SyncookiesFailed *metrics.Counter
	ListenOverflows  *metrics.Counter
	ListenDrops      *metrics.Counter
}

ExtendedMetrics represents extended statistics about various tcp indicators and is automatically initialized. Caution: reflection is used to read this struct to discover names

type NetStat

type NetStat struct {
	TCPStat         TCPStat
	UDPStat         UDPStat
	ExtendedMetrics ExtendedMetrics
	// contains filtered or unexported fields
}

NetStat is a holder for TCP and UDP statistics.

func New

func New(m *metrics.MetricContext, Step time.Duration) *NetStat

New starts metrics collection every Step and registers with metricscontext

func (*NetStat) Collect

func (s *NetStat) Collect()

Collect populates NetStat by reading /proc/net/snmp and /proc/net/netstat

type TCPStat

type TCPStat struct {
	MaxConn      *metrics.Gauge
	ActiveOpens  *metrics.Counter
	PassiveOpens *metrics.Counter
	AttemptFails *metrics.Counter
	EstabResets  *metrics.Counter
	CurrEstab    *metrics.Gauge
	InSegs       *metrics.Counter
	OutSegs      *metrics.Counter
	RetransSegs  *metrics.Counter
	InErrs       *metrics.Counter
	OutRsts      *metrics.Counter
}

TCPStat represents statistics about various tcp indicators and is automatically initialized. Caution: reflection is used to read this struct to discover names

type UDPStat

type UDPStat struct {
	InDatagrams  *metrics.Counter
	NoPorts      *metrics.Counter
	InErrors     *metrics.Counter
	OutDatagrams *metrics.Counter
	RcvbufErrors *metrics.Counter
	SndbufErrors *metrics.Counter
}

UDPStat represents statistics about UDP. Reflection is used to map field names to kernel data.