What command is used to execute a complete restart of Apache for deep monitoring with Dynatrace OneAgent?

The correct command to execute a complete restart of Apache for deep monitoring with Dynatrace OneAgent is achieved by stopping and then starting the Apache service. While both stopping and starting Apache may take a little longer than simply using a restart command, it ensures that all processes are fully terminated before starting new ones. This is crucial for Dynatrace OneAgent to effectively hook into the monitoring process from the very beginning.

Using a complete stop and start sequence guarantees that any changes made in the configuration are applied, and any old worker processes are cleared out, providing a clean slate for monitoring. This can particularly aid in ensuring that the OneAgent is correctly applied to all newly started processes.

Other commands, such as simply restarting with apachectl restart, can result in some worker processes not being fully terminated, which might not be suitable for a fresh monitoring session. The systemctl restart apache2 command is similar to apachectl restart, but it’s specific to systemd systems and doesn’t ensure a clean process start in the same way as an explicit stop and start. The service apache2 reload command only reloads the configuration without stopping and starting the server, which does not provide the same effective monitoring setup.