The latest articles on Debug School by Gobinath Sengottuvel (@gobinath94). https://www.debug.school/gobinath94 https://www.debug.school/images/yWyw7ox0_al5uvhoGtXvJ86q9f6AvKDG_wLdpSSTqko/rs:fill:90:90/g:sm/mb:500000/ar:1/aHR0cHM6Ly93d3cu/ZGVidWcuc2Nob29s/L3VwbG9hZHMvdXNl/ci9wcm9maWxlX2lt/YWdlLzM1Ni81ZTA0/ZTEyNS1jMDE5LTQ0/ZDMtYTRhYS1hOTAz/NzUwOTZhNmMucG5n https://www.debug.school/gobinath94 en Gobinath Sengottuvel Tue, 17 Jan 2023 16:01:09 +0000 https://www.debug.school/gobinath94/datadog-assignment-17-jan-1a0n https://www.debug.school/gobinath94/datadog-assignment-17-jan-1a0n <h2> What is Datadog Agent? </h2> <p>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.</p> <h2> What are list of methods to send data to Datadog? </h2> <ul> <li>Collector and DogStatsD collets data from host infra and host application metrics and send to forwarder using TCP protocol</li> <li>Forwarder send data to DataDog cloud using http protocol</li> </ul> <h2> Top 10 commands of Datadog Agent </h2> <div class="highlight js-code-highlight"> <pre class="highlight plaintext"><code>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 </code></pre> </div> <h2> Top 10 Techniques for troubleshooting Datadog Agent </h2> <ol> <li>Check Datadog Agent Process is running or not</li> <li>Check Datadog Agent Logs for Error</li> <li>Check Datadog Agent Configuration file(datadog.yaml) syntax error</li> <li>Check Datadog Integration Configuration file(datadog.yaml) syntax Error</li> <li>Check Datadog Agent API Key in datadog.yaml</li> <li>Print the runtime configuration of a running agent</li> <li>Print all configurations loaded &amp; resolved of a running agent</li> <li>Execute some connectivity diagnosis on your system</li> <li>Print the current agent health</li> <li>Print basic statistics on the metrics processed by dogstatsd</li> </ol> <h2> Top 10 Metrices of Linux Servers which you should care it? </h2> <blockquote> <p>system.cpu.idle<br> system.cpu.iowait<br> system.cpu.system<br> system.cpu.user<br> system.disk.in_use<br> system.disk.total<br> system.disk.used<br> system.disk.write_time<br> system.mem.total<br> system.mem.usable<br> system.mem.used</p> </blockquote> <h2> Write down the steps to enable any integration in datadog? </h2> <ul> <li>Install datadog-agent</li> <li>Integrate any service like apache by going to Integration- Integrations and search for the service and Install it</li> <li>Follow the steps to configure that connection in the config files</li> <li>Validate</li> </ul> <h2> Top 10 Metrices of Windows Servers which you should care it? </h2> <blockquote> <p>system.cpu.idle<br> system.cpu.system<br> system.cpu.user<br> system.disk.free<br> system.disk.in_use<br> system.disk.used<br> system.mem.cached<br> system.mem.committed<br> system.mem.total<br> system.mem.used</p> </blockquote> <h2> Top 5 Metrices of Apache which you should not miss it? </h2> <blockquote> <p>apache.net.bytes_per_s<br> apache.net.request_per_s<br> apache.performance.busy_workers<br> apache.performance.cpu_load<br> apache.performance.max_workers</p> </blockquote>