Agent type: Telegraf
Supported OS: Linux
Pre configured Dashboard: Yes
ML / AI enabled: Yes


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