What is Datadog Agent?
Open-source software called Datadog Agent keeps track of the host it runs on. Datadog Agent functions as a DogStatsD server and also collects metrics from other host processes or containers.
What are list of methods to send data to Datadog?
DataDog API's
Via Integrations
Metrics
Top 10 commands of Datadog Agent
/etc/datadog-agent/datadog.yaml
/etc/datadog-agent/conf.d/
systemctl start datadog-agent
systemctl stop datadog-agent
systemctl restart datadog-agent
datadog-agent status
datadog-agent configcheck
datadog-agent health
datadog-agent hostname
datadog-agent version
Top 10 Techniques for troubleshooting Datadog Agent
1) rechechking hostname
2) check host is connected to internet and able to access it through proxy
3) if using proxy then check is agent configured with this proxy
4) check DataDog API key is configured in datadog.yaml file
5) check site is configured in datadog.yaml file
6) check only one datadog agent running on host.
7) restart agent after configuring datadog.yaml file.
8) run status command to get more details on agent.
9) check agent logs and enable debug mode.
10) reachout to datadog support team.
Top 10 Metrices of Linux Servers which you should care it?
system.cpu.user
system.disk.in_use
system.disk.total
system.disk.used
system.cpu.idle
system.cpu.iowait
system.cpu.system
system.disk.write_time
system.mem.total
system.mem.usable
system.mem.used
Write down the steps to enable any integration in datadog?
--> install datadog agent
--> configure yaml file to check agent running on host
--> restart the agent
--> install API
--> create integration dashboard
--> validate the service
--> authenticate integration
Top 10 Metrices of Windows Servers which you should care it?
system.cpu.user
system.disk.in_use
system.disk.total
system.disk.used
system.cpu.idle
system.cpu.iowait
system.cpu.system
system.disk.write_time
system.mem.total
system.mem.usable
system.mem.used
Top 5 Metrices of Apache which you should not miss it?**
apache.net.bytes_per_s
apache.net.request_per_s
apache.performance.busy_workers
apache.performance.cpu_load
apache.performance.max_workers
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