Debug School: Sivakumar

Datadog assginment Day3

Sivakumar — Thu, 14 Sep 2023 04:53:16 +0000

Top 10 metrics/indicators for APM

Error Rate
Response Time
Throughput
Apdex Score
Resource Utilization
Transaction Tracing
Network Performance
User Experience Metrics
Error and Log Analysis
Garbage Collection Metrics

Top 10 metrics/indicators for Synthetics

Response Time
Availability
Transaction Success Rate
Page Load Time
Transaction Completion Time
Geographical Performance
Browser and Device Metrics
Error Rate
Performance Baseline
Third-Party Service Performance

3 Top 10 metrics/indicators for RUM

Page Load Time
Page Render Time
Apdex Score
Error Rate
Session Duration
Conversion Rate
Geographical Performance
Device and Browser Breakdown
Network Latency
Performance by Page

Datadog Day2 assignment

Sivakumar — Tue, 12 Sep 2023 11:56:50 +0000

How to enable process monitoring in data-dog agent

Open the datadog.yaml and uncomment the process_config section under that process_collection should be enabled as true
process_config:

## @param process_collection - custom object - optional
## Specifies settings for collecting processes.
process_collection:
## @param enabled - boolean - optional - default: false
## Enables collection of information about running processes.
enabled: true

Save the file and restart the agent using command --> systemctl restart datadog-agent

Below command will give you the confirmation about the process monitoring enabled or not datadog-agent config | grep process_collection -B 5 -A 5

====================================================================

Write it down a step to collect apache metrices to datadog

Install apache
$ sudo apt update
$ sudo apt install apache2

Replace this file with your new content to post
$ vi /var/www/html/index.html

Restart the apache
$service apache2 restart

Validate using the below curl
$ watch curl http://localhost

Once installed and validated.. Install the apache integration in datadog UI
Then install mod_status and enable it
By default above modules are enabled but validate once
$ ls /etc/apache2/mods-enabled | grep status*

Ensure the status files are available using the below command
sudo /usr/sbin/a2enmod status

Even though mod_status module enabled we need to allow all incoming connecting to the apache server by allowing a grant permission under status.conf file and restart the apache server using the below commands
$ sudo systemctl restart apache2
$ sudo systemctl status apache2
$ curl http://server-ip/server-status
$ curl http://server-ip/server-status?refresh=5

Enable apache datadog integration using the below steps
$ cd /etc/datadog-agent/conf.d/apache.d/
$ sudo cp conf.yaml.example conf.yaml
$ sudo vi conf.yaml -- Need to replace apache status url
$ sudo service datadog-agent restart [UBUNTU]
$ sudo systemctl restart datadog-agent [Centos and Ubuntu]
Use the below command to verify whether datadog agent configured correctly with apache
$ datadog-agent configcheck | grep apache -A 5 -B 5
Finally install integration in the SaaS UI and verify the apache metrics in metric explorer, host.

==================================================================

Write it down a step to collect tomcat metrices to datadog

Install openjdk using below steps

Write it down a step to collect tomcat metrices to datadog

$ sudo apt-get update
$ sudo apt-get install openjdk-11-jdk -y
$ apt install openjdk-11-jdk-headless -y

Go to google and download the zip file for the tomcat installable and locate it in cd /opt/

Once done follow the below commands
$ unzip apache-tomcat-9.0.73.zip
$ cd apache-tomcat-9.0.73
$ cd bin
$ chmod -R 755 .
$ ls

Enable JMXRemote using the below steps
Open below file and add the below mentioned content next to the line esac

vi /opt/apache-tomcat-9.0.73/bin/catalina.sh

CATALINA_OPTS="-Dcom.sun.management.jmxremote -Dcom.sun.management.jmxremote.port=9012 -Dcom.sun.management.jmxremote.ssl=false -Dcom.sun.management.jmxremote.authenticate=false"

Then restart the tomcat using the below command
$ ./shutdown.sh
$ ./startup.sh

Integrate tomcat with Datadog using the below steps $ cd /etc/datadog-agent/conf.d/tomcat.d/ $ cp conf.yaml.example conf.yaml $ datadog-agent configcheck $ systemctl restart datadog-agent $ systemctl status datadog-agent $ datadog-agent config

Finally install the integration from SaaS side and verify the metrics

Datadog Indroduction(Siva)

Sivakumar — Mon, 11 Sep 2023 07:23:21 +0000

What is Observability and its advantage?

 Observability is a reactive action / process, using the monitoring logs,traces & metrics. Which will help in finding the root cause of the issue happened in the monitoring environment . Also it will help to self heal the future issues and gives you the futuristic alert trend of the environment.

Difference between Observability Monitoring?

  Observability is a reactive process where as monitoring is proactive process 
  Monitoring will show only the data about particular process or services(display data) and it will trigger events in changes. Where as Observability can help to find root cause using the crucial data called traces, logs & metrics.

What is Data-dog?

  Datadog is a monitoring service which monitors the whole environment in terms of APM,infra,micro services monitoring.

What is Data-dog Agent and How it works?

   DD Agent is a monitoring agent /installable which developed using Go language,which can install in the hosts where we need to monitor the environment a

Component of Data-dog Agent and short intro for each

DD agent has 3 components(collector,dogstatsd & forwarder)
Collector -- collect all infra metrics from the host and share to forwarder using http(17285)
DogstatsD -- Module which collect and aggregate the application related data and forward it to forwarder through UDP port
Forwarder -- It can club both the data sent by collector and dogstatsD and send it to Datadog SaaS(Backend)

===================================================================

1 Top 10 commands of Datadog Agent

$ systemctl start datadog-agent
$ systemctl stop datadog-agent
$ systemctl restart datadog-agent
$ systemctl status datadog-agent
$ ls /var/log/datadog/
$ less /etc/datadog-agent/datadog.yaml
$ less /var/log/datadog/agent.log
$ less /var/log/datadog/process-agent.log
$ less /var/log/datadog/trace-agent.log
$ datadog-agent configcheck
$ datadog-agent config
$ datadog-agent health
$ datadog-agent hostname
$ datadog-agent version
$ datadog-agent status

Debug School: Sivakumar

Datadog assginment Day3

Top 10 metrics/indicators for APM

Top 10 metrics/indicators for Synthetics

3 Top 10 metrics/indicators for RUM

Datadog Day2 assignment

How to enable process monitoring in data-dog agent

Write it down a step to collect apache metrices to datadog

Write it down a step to collect tomcat metrices to datadog

Finally install the integration from SaaS side and verify the metrics

Datadog Indroduction(Siva)

What is Observability and its advantage?

Difference between Observability Monitoring?

What is Data-dog?

What is Data-dog Agent and How it works?

Component of Data-dog Agent and short intro for each

1 Top 10 commands of Datadog Agent

2 Locate how to enable Process monitoring in datadog.yaml?

Process Agent

process_agent_enabled: true

3 Top 5 Techniques for troubleshooting Data-dog Agent