Debug School: Nivetha

Datadog Assignment 4

Nivetha — Thu, 14 Sep 2023 05:12:58 +0000

Top 10 metrics/indicators for APM

Number of Request
Error Rate
Latency
Apdex
Span count
Erroe type
status
Duration
Exec Time
Error Tracking

Top 10 metrics/indicators for Synthetic monitoring

Test Runs
Test Response
Total Response Time
Response Time by Location
Network timings
Connections
DNS
SSL
Time to first byte
Download

Top 10 metrics/indicators for RUM

User Analytics
Errors
Deployments
Top Views
Most visited Pages
Sessions and Replays
Number of sessions
Session duration
Error count
Frustration count

Datadog Assignment 3

Nivetha — Tue, 12 Sep 2023 12:05:35 +0000

Write it down a step to collect apache metrices to datadog

Install Datadog Agent
Install Apache server
Install the Apache integration at Datadog console
Enable the status module (mod_status)
Check for the image in conf.yaml file
Restart the agent
Check for the status
Create Traffic manually and the metrics will be seen in the console
Check on the console

Write it down a step to collect tomcat metrices to datadog

Install Datadog Agent
Install open JDK
Install Tomcat
Install the Tomcat integration at Datadog console
Enable JMX in catalina.sh
Start the Tomcat
Check on the conf.yaml file and do if changes require
Restart the agent
Check for the status
Create Traffic manually and the metrics will be seen in the console
Check on the console

Write it down a step to collect docker metrices to datadog

Install Datadog Agent
Enable process monitoring
Install Docker
Install the Docker integration at Datadog console
Check on the conf.yaml file and do if changes require
Restart the agent
Check for the status
Create the containers manually and it will reflect in the console
Check on the console

Write it down a step to collect mysql metrices to datadog

Install Datadog Agent
Install MySQL
Set Password for the host
Install the MySQL integration at Datadog console
Create datadog user and verify
Grant the necessary permissions
Check on the conf.yaml file and do if changes require
Restart the agent
Create a test database
Check on the console

Datadog Assignment 2

Nivetha — Mon, 11 Sep 2023 12:00:52 +0000

Top 10 commands of Datadog Agent

systemctl start datadog-agent
systemctl stop datadog-agent
systemctl restart datadog-agent
systemctl status datadog-agent
datadog-agent config
datadog-agent health
datadog-agent hostname
datadog-agent version
datadog-agent status
datadog-agent

Locate how to enable Process monitoring in datadog.yaml?

Edit the process_config with enabled: True

Top 5 Techniques for troubleshooting Datadog Agent

Check the Agent Status
Check the Agent Logs
Check the Configuration
Check the Connectivity
Check for Firewalls

Datadog Assignment 1

Nivetha — Mon, 11 Sep 2023 07:38:24 +0000

What is Observability and its advantage?

It is reactive in a way that it will gives information that why the monitoring not working. It helps in debuging the system. Metrics, Traces and Logs are the pillars.

Metrics(Infra)+Trace(APM)+Log+Uptime+UX+Security

Advantages:

It helps in time saving
It increases automation
Actionable alerting
Real time integration dashboard
Real user monitoring, etc

Difference between Observability and Monitoring?

Monitoring is a proactive method where we can check if the system is available or healthy.
Observability is a reactive method where we will be debugging the system when an issue occurs.

What is Datadog?

It is a service which collects Metrics, Traces, Logs and presents the visualization of those collected. It has 600+ integrations.
It uses Microservices architecture
It collects the info of availability, performance and reliability for Application, Network and Server.

What is Datadog Agent and How it works?

It is a light weight software installed on the host.
It reports metrics and events from the host to datadog.
It is written in Go Lang.

Component of Datadog Agent and short intro for each

Collector - collects all standard metrics
DogStatsD - The statsD code is modified with extension. It accepts metrices, events and services checks.
Forwarder - Forwards the info from collector and DogstatsD over HTTPS to the datadog.