mntr

Documentation

Overview

Package mntr fetches metrics from ZooKeeper by using the mntr command which was added to ZooKeeper in version 3.4.0.

See the mntr command documentation at https://zookeeper.apache.org/doc/trunk/zookeeperAdmin.html

ZooKeeper mntr Command Output

$ echo mntr | nc localhost 2185
zk_version	3.4.8--1, built on 02/06/2016 03:18 GMT
zk_avg_latency	0
zk_max_latency	0
zk_min_latency	0
zk_packets_received	10
zk_packets_sent	9
zk_num_alive_connections	1
zk_outstanding_requests	0
zk_server_state	standalone
zk_znode_count	4
zk_watch_count	0
zk_ephemerals_count	0
zk_approximate_data_size	27
zk_open_file_descriptor_count	25
zk_max_file_descriptor_count	1048576

Index

• func New(base mb.BaseMetricSet) (mb.MetricSet, error)
• type MetricSet
  • func (m *MetricSet) Fetch(r mb.ReporterV2) error

Functions

func New

func New(base mb.BaseMetricSet) (mb.MetricSet, error)

New creates new instance of MetricSet.

Types

type MetricSet

type MetricSet struct {
	mb.BaseMetricSet
}

MetricSet for fetching ZooKeeper health metrics.

func (*MetricSet) Fetch

func (m *MetricSet) Fetch(r mb.ReporterV2) error

Fetch fetches metrics from ZooKeeper by making a tcp connection to the command port and sending the "mntr" command and parsing the output.