Apache Monitoring with Datadog

Aug 25, 2020

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Datadog made Apache monitoring simple, all we need to do is agent installation and some basic configuration. It enables us to monitor host status, Apache instance status, CPU and Disc space utilization and even other metrics like requests served per second, total number of connections performed etc.

Here are the detailed instructions to configure Datadog for Apache monitoring.

Prerequisites :

    • Sudo access
    • Read access to dd-agent user (to access Apache logs)
    • Open firewalls between Datadog and your Apache hosts.
  1. Install Datadog agent on all your hosts.

Sudo DD_AGENT_MAJOR_VERSION=7 DD_API_KEY=xxxxx DD_HOST_TAGS=’env:Dev,svc:service,bu:BusinessUnit,app:ApplicationName,region:XXX,availability-zone:xxx,emailID’ bash -c “$(curl -L https://s3.amazonaws.com/dd-agent/scripts/install_script.sh)” 

  1. Install mod_status on Apache servers and enable ExtendedStatus.

Backup ‘httpd.conf’ file and update it for each Apache instance.

Uncomment “LoadModule status_module modules/mod_status.so” and add below lines..

<Location /server-status>

SetHandler server-status

Allow from *.datadoghq.com


 ExtendedStatus On

  1. Restart Apache instance
  2. Add Apache instances in the yaml file and restart agent.

vi /etc/datadog-agent/conf.d/apache.d/conf.yaml


  – apache_status_url: http://host:port/server-status?auto

    service: apache_instance_name

  – apache_status_url: http://host:port/server-status?auto

    service: apache_instance_name

  1. Restart agent and verify status

sudo restart datadog-agent

sudo datadog-agent status

  1. Configure log files to monitor and restart agent

vi /etc/datadog-agent/datadog.yaml

logs_enabled: true

 vi /etc/datadog-agent/conf.d/apache.d/conf.yaml


 – type: file

   path: /var/log/apache2/access.log

   source: apache

   service: apache

 – type: file

   path: /var/log/apache2/error.log

   source: apache

   service: apache

  1. Create Dashboards, Monitors.

(will share detailed instructions on how to create monitors and dashboards in my next blog. See below screenshots to find these options and how do dashboards and monitors look like.).