Datadog Assignment: Infra Jan 17th

1. What is Datadog Agent?

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The Datadog Agent is software that runs on hosts and collects events and metrics from hosts and sends them to Datadog, where one can analyze and monitor performance metrics. The Datadog Agent is open source software.

2.What are list of methods to send data to Datadog?

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Datadog DogStatsD implements the StatsD protocol with some differences. DogStatsD enables you to send metrics and monitor your application code without blocking it. DogStatsD is a Golang implementation of Etsy’s StatsD metric aggregation daemon.
The Collector is in charge of running checks and collecting metrics.
The Forwarder sends payloads to Datadog.

3.Top 10 commands of Datadog Agent

datadog-agent check
datadog-agent status
datadog-agent stop
datadog-agent run
datadog-agent hostname
datadog-agent launch-gui
datadog-agent version 
datadog-agent diagnose
datadog-agent config 
datadog-agent health

4.Top 10 Techniques for troubleshooting Datadog Agent

Check Datadog Agent Process is running or not
Check Datadog Agent Logs for Error
Check Datadog Agent Configuration file(datadog.yaml) syntax error
Check Datadog Integration Configuration file(datadog.yaml) syntax Error
Check Datadog Agent API Key in datadog.yaml
Print the runtime configuration of a running agent
Print all configurations loaded & resolved of a running agent
Execute some connectivity diagnosis on your system
Print the current agent health
Print basic statistics on the metrics processed by dogstatsd

5.Top 10 Metrices of Linux Servers which you should care it?

system.cpu.idle
system.cpu.iowait
system.cpu.system
system.cpu.user
system.disk.in_use
system.disk.total
system.disk.used
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 docker by going to Integrations in tool bar by installing it
Follow the steps to configure that connection in the config yml files
Validate in the Datadog UI throug infrastructure list or Explorer

7. Top 10 Metrices of Windows Servers which you should care it?

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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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