Debug School

Gobinath Sengottuvel
Gobinath Sengottuvel

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DataDog Assignment - 17 Jan

What is Datadog Agent?

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.

What are list of methods to send data to Datadog?

  • Collector and DogStatsD 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

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 healthh
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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. Check Datadog Integration Configuration file(datadog.yaml) syntax Error
  5. Check Datadog Agent API Key in datadog.yaml
  6. Print the runtime configuration of a running agent
  7. Print all configurations loaded & resolved of a running agent
  8. Execute some connectivity diagnosis on your system
  9. Print the current agent health
  10. Print basic statistics on the metrics processed by dogstatsd

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

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

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

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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