1.What is Datadog Agent?
•Datadog Agent is open-source software that monitors the host on which it runs. Acting as a DogStatsD server, Datadog Agent also aggregates metrics from other processes or containers on the host.
2.What are list of methods to send data to Datadog?
•Collector and DatastatsD collets data from host infra and host application metrics and send to forwarder using TCP protocol
•Forwarder send data to DataDog cloud using http protocol
3.Top 10 commands of Datadog Agent
datadog-agent version
datadog-agent diagnose
datadog-agent config
datadog-agent health
datadog-agent check
datadog-agent status
datadog-agent stop
datadog-agent run
datadog-agent hostname
datadog-agent launch-gui
4.Top 10 Techniques for troubleshooting Datadog Agent
1.Check Datadog Agent Process is running or not
2.Check Datadog Agent Logs for Error
3.Check Datadog Agent Configuration file(datadog.yaml) syntax error
4.Print the runtime configuration of a running agent
5.Print all configurations loaded & resolved of a running agent
6.Execute some connectivity diagnosis on your system
7.Check Datadog Integration Configuration file(datadog.yaml) syntax Error
8.Check Datadog Agent API Key in datadog.yaml
9.Print the current agent health
10.Print basic statistics on the metrics processed by dogstatsd
5.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
6.Write down the steps to enable any integration in datadog?
•Install datadog-agent
•Integrate any service like apache by going to Integration- Integrations and search for the service and Install it
•Follow the steps to configure that connection in the config files
•Validate
7.Top 10 Metrices of Windows Servers which you should care it?
system.cpu.idle
system.cpu.system
system.cpu.user
system.disk.free
system.disk.in_use
system.disk.used
system.mem.cached
system.mem.committed
system.mem.total
system.mem.used
8.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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