apache

README

Apache collector

Overview

Apache is an open-source HTTP server for modern operating systems including UNIX and Windows.

This collector monitors metrics from one or more Apache servers, depending on your configuration.

Collected metrics

Metrics grouped by scope.

The scope defines the instance that the metric belongs to. An instance is uniquely identified by a set of labels.

All metrics available only if ExtendedStatus is on.

global

These metrics refer to the entire monitored application.

This scope has no labels.

Metrics:

Metric	Dimensions	Unit	Basic/Extended
apache.connections	connections	connections	+ +
apache.conns_async	keepalive, closing, writing	connections	+ +
apache.workers	idle, busy	workers	+ +
apache.scoreboard	waiting, starting, reading, sending, keepalive, dns_lookup, closing, logging, finishing, idle_cleanup, open	connections	+ +
apache.requests	requests	requests/s	- +
apache.net	sent	kilobit/s	- +
apache.reqpersec	requests	requests/s	- +
apache.bytespersec	served	KiB/s	- +
apache.bytesperreq	size	KiB	- +
apache.uptime	uptime	seconds	- +

Setup

Prerequisites

Enable Apache status support

• Enable and configure status_module.
• Ensure that you have ExtendedStatus set on ( enabled by default since Apache v2.3.6).

Configuration

File

The configuration file name is go.d/apache.conf.

The file format is YAML. Generally, the format is:

update_every: 1
autodetection_retry: 0
jobs:
  - name: some_name1
  - name: some_name1

You can edit the configuration file using the edit-config script from the Netdata config directory.

cd /etc/netdata 2>/dev/null || cd /opt/netdata/etc/netdata
sudo ./edit-config go.d/apache.conf

Options

The following options can be defined globally: update_every, autodetection_retry.

Config options

Name	Description	Default	Required
update_every	Data collection frequency.	1
autodetection_retry	Re-check interval in seconds. Zero means not to schedule re-check.	0
url	Server URL.	http://127.0.0.1/server-status?auto	yes
timeout	HTTP request timeout.	1
username	Username for basic HTTP authentication.
password	Password for basic HTTP authentication.
proxy_url	Proxy URL.
proxy_username	Username for proxy basic HTTP authentication.
proxy_password	Password for proxy basic HTTP authentication.
method	HTTP request method.	GET
body	HTTP request body.
headers	HTTP request headers.
not_follow_redirects	Redirect handling policy. Controls whether the client follows redirects.	no
tls_skip_verify	Server certificate chain and hostname validation policy. Controls whether the client performs this check.	no
tls_ca	Certification authority that the client uses when verifying the server's certificates.
tls_cert	Client TLS certificate.
tls_key	Client TLS key.

Examples

Basic

A basic example configuration.

Config

jobs:
  - name: local
    url: http://127.0.0.1/server-status?auto

HTTP authentication

Basic HTTP authentication.

Config

jobs:
  - name: local
    url: http://127.0.0.1/server-status?auto
    username: username
    password: password

HTTPS with self-signed certificate

Apache with enabled HTTPS and self-signed certificate.

Config

jobs:
  - name: local
    url: https://127.0.0.1/server-status?auto
    tls_skip_verify: yes

Multi-instance

Note: When you define multiple jobs, their names must be unique.

Collecting metrics from local and remote instances.

Config

jobs:
  - name: local
    url: http://127.0.0.1/server-status?auto

  - name: remote
    url: http://192.0.2.1/server-status?auto

Troubleshooting

Debug mode

To troubleshoot issues with the apache collector, run the go.d.plugin with the debug option enabled. The output should give you clues as to why the collector isn't working.

• Navigate to the plugins.d directory, usually at /usr/libexec/netdata/plugins.d/. If that's not the case on your system, open netdata.conf and look for the plugins setting under [directories].

  cd /usr/libexec/netdata/plugins.d/
  

• Switch to the netdata user.

  sudo -u netdata -s
  

• Run the go.d.plugin to debug the collector:

  ./go.d.plugin -d -m apache
  

Documentation

Index

• type Apache
  • func New() *Apache
  • func (a *Apache) Charts() *module.Charts
  • func (a *Apache) Check() bool
  • func (a *Apache) Cleanup()
  • func (a *Apache) Collect() map[string]int64
  • func (a *Apache) Init() bool
• type Config

Types

type Apache

type Apache struct {
	module.Base

	Config `yaml:",inline"`
	// contains filtered or unexported fields
}

func New

func New() *Apache

func (*Apache) Charts

func (a *Apache) Charts() *module.Charts

func (*Apache) Check

func (a *Apache) Check() bool

func (*Apache) Cleanup

func (a *Apache) Cleanup()

func (*Apache) Collect

func (a *Apache) Collect() map[string]int64

func (*Apache) Init

func (a *Apache) Init() bool

type Config

type Config struct {
	web.HTTP `yaml:",inline"`
}