The datadog-agent has one dependency which is '/bin/sh'. It is safe to just install it, also in regards to future updates of Exasol.
For CentOS 7.x just run on each machine (as user root):
DD_API_KEY=<Your-API-Key> bash -c "$(curl -L https://raw.githubusercontent.com/DataDog/datadog-agent/master/cmd/agent/install_script.sh)"
The hostname can be changed in '/etc/datadog-agent/datadog.yaml', afterward, restart the agent as user root with 'systemctl restart datadog-agent'.
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