Scope: Tracks requests per second, number of worker threads, bytes served and more.

Background:

To collect extended Apache data you would need to configure "Apache Input Plugin" in Telegraf.

It collects server performance information using the mod_status module of the Apache HTTP Server.

Configuration steps:

1) Have Telegraf agent installed and configured to send data to Heili.

2) Install and configure mod_status on your Apache instances and enable ExtendedStatus option.

3) Edit your telegraf configuration file and add additional input similar to:

# Read Apache status information (mod_status)
[[inputs.apache]]
  ## An array of URLs to gather from, must be directed at the machine
  ## readable version of the mod_status page including the auto query string.
  ## Default is "http://localhost/server-status?auto".
  urls = ["http://localhost/server-status?auto"]

  ## Credentials for basic HTTP authentication.
  # username = "myuser"
  # password = "mypassword"

  ## Maximum time to receive response.
  # response_timeout = "5s"

  ## Optional TLS Config
  # tls_ca = "/etc/telegraf/ca.pem"
  # tls_cert = "/etc/telegraf/cert.pem"
  # tls_key = "/etc/telegraf/key.pem"
  ## Use TLS but skip chain & host verification
  # insecure_skip_verify = false

Available Measurements & Fields lists:

apache

• BusyWorkers (float)
• BytesPerReq (float)
• BytesPerSec (float)
• ConnsAsyncClosing (float)
• ConnsAsyncKeepAlive (float)
• ConnsAsyncWriting (float)
• ConnsTotal (float)
• CPUChildrenSystem (float)
• CPUChildrenUser (float)
• CPULoad (float)
• CPUSystem (float)
• CPUUser (float)
• IdleWorkers (float)
• Load1 (float)
• Load5 (float)
• Load15 (float)
• ParentServerConfigGeneration (float)
• ParentServerMPMGeneration (float)
• ReqPerSec (float)
• ServerUptimeSeconds (float)
• TotalAccesses (float)
• TotalkBytes (float)
• Uptime (float)

The following fields are collected from the Scoreboard, and represent the number of requests in the given state:

apache

• scboard_closing (float)
• scboard_dnslookup (float)
• scboard_finishing (float)
• scboard_idle_cleanup (float)
• scboard_keepalive (float)
• scboard_logging (float)
• scboard_open (float)
• scboard_reading (float)
• scboard_sending (float)
• scboard_starting (float)
• scboard_waiting (float)
• 
  

Tags, all collected measurements have the following tags:

• port
• server