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README.md

Agent Check: Apache Web Server

Apache Dashboard

Overview

The Apache check tracks requests per second, bytes served, number of worker threads, service uptime, and more.

Setup

Follow the instructions below to install and configure this check for an Agent running on a host. For containerized environments, see the Autodiscovery Integration Templates for guidance on applying these instructions.

Installation

The Apache check is packaged with the Agent. To start gathering your Apache metrics and logs, you need to:

  1. Install the Agent on your Apache servers.

  2. Install mod_status on your Apache servers and enable ExtendedStatus.

Configuration

  1. Edit the apache.d/conf.yaml file in the conf.d/ folder at the root of your Agent's configuration directory to start collecting your Apache metrics and logs. See the sample apache.d/conf.yaml for all available configuration options.

  2. Restart the Agent.

Metric collection

  1. Add this configuration block to your apache.d/conf.yaml file to start gathering your Apache Metrics:

     init_config:

 instances:
   - apache_status_url: http://example.com/server-status?auto
   #  apache_user: example_user # if apache_status_url needs HTTP basic auth
   #  apache_password: example_password
   #  disable_ssl_validation: true # if you need to disable SSL cert validation, i.e. for self-signed certs

    Change the apache_status_url parameter value and configure it for your environment. See the sample apache.d/conf.yaml for all available configuration options.

  2. Restart the Agent.

Log collection

Available for Agent >6.0

  1. Collecting logs is disabled by default in the Datadog Agent, you need to enable it in datadog.yaml:

      logs_enabled: true

  2. Add this configuration block to your apache.d/conf.yaml file to start collecting your Apache Logs:

      logs:
      - type: file
        path: /var/log/apache2/access.log
        source: apache
        sourcecategory: http_web_access
        service: apache

      - type: file
        path: /var/log/apache2/error.log
        source: apache
        sourcecategory: http_web_access
        service: apache

    Change the path and service parameter values and configure them for your environment. See the sample apache.d/conf.yaml for all available configuration options.

  3. Restart the Agent.

Validation

Run the Agent's status subcommand and look for apache under the Checks section.

Data Collected

Metrics

See metadata.csv for a list of metrics provided by this check.

Events

The Apache check does not include any events.

Service Checks

apache.can_connect:
Returns CRITICAL if the Agent cannot connect to the configured apache_status_url, otherwise returns OK.

Troubleshooting

Apache status URL

If you are having issues with your Apache integration, it is mostly like due to the Agent not being able to access your Apache status URL. Try running curl for the apache_status_url listed in your apache.d/conf.yaml file (include your login credentials if applicable).

Further Reading

Additional helpful documentation, links, and articles: