JothiBasu Kamaraj

DevOps | Kubernetes | Containers | Cloud Automation | Terraform | Montoring | Freelancing | Consulting | Platform Engineering
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[JothiBasu Kamaraj @jbon_tech]

@GithubProjects https://t.co/bmIJlZo0t9

[Oliver Prompts @oliviscusAI]

🚨 BREAKING: Someone just open-sourced a massive library of 900+ AI agent skills for Claude, Copilot, Gemini, Cursor, and more.

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[JothiBasu Kamaraj @jbon_tech]

@heyrimsha AI

[JothiBasu Kamaraj @jbon_tech]

@Oliviacoder1 AI

[DevopsCube @devopscube]

Kubernetes design interview question 🚀

Is it possible for etcd to have a split-brain scenario?

What is 𝘀𝗽𝗹𝗶𝘁-𝗯𝗿𝗮𝗶𝗻 𝘀𝗰𝗲𝗻𝗮𝗿𝗶𝗼?

Split brain scenarios occur when a group of nodes in a distributed system loses communication with each other primarily due to network partitioning, resulting in inconsistent or conflicting system states.

etcd is designed to avoid split-brain scenarios, as it relies on a leader election mechanism to ensure that only one node is active and in control of the cluster at any given time.

The official documentation says, there is no “split-brain” in etcd. Here is why.

✅ A network partition divides the etcd cluster into two parts; one with a member majority and the other with a member minority.

✅ The majority side becomes the available cluster and the minority side is unavailable

✅ If the leader is on the majority side, then from the majority point of view the failure is a minority follower failure.

✅ If the leader is on the minority side, then it is a leader failure.

✅ The leader on the minority side steps down and the majority side elects a new leader.

✅ Once the network partition clears, the minority side automatically recognizes the leader from the majority side and recovers its state.

So how does the leader know weather its in the majority or minority?

etcd nodes regularly send "heartbeats" to each other.

If the leader is in the minority part of the split, it will not receive acknowledgments from the majority of the nodes.

When the leader doesn't get enough responses to its heartbeats, it realizes that it might be in the minority.

To maintain the integrity of the system, it steps down from its leadership role.

On the other side of the partition, where the majority of nodes are, they also notice they're not getting heartbeats from the leader. Since they are the majority, they can elect a new leader among themselves.

PS: ♻️ Repost if you find this useful. It helps the DevOps community 🙂

Have you faced split brain scenario before?

⬇️ Discuss in the comments below! ⬇️

#devops #kubernetes #devopscommunity

[JothiBasu Kamaraj @jbon_tech]

@NaveenS16 Interesting topic to explore, my choice is #thanos, then #ELK stack

@NaveenS16

[Kube Architect @K8sArchitect]

This article explains how CPU limits cause throttling in Kubernetes, how to diagnose container CPU starvation, and practical fixes like kernel upgrades, monitoring throttling metrics, and adjusting limits

➜ https://t.co/vi2OqBXF0I

[DevopsCube @devopscube]

If you are serious about learning key Kubernetes concepts,

Read these 👇

1. Kubernetes Immutable Secret -https://t.co/8sS5my5pRK
2. Cluster Autoscaler vs Karpenter - https://t.co/60tZ18oKc9
3. TLS Management in Kubernetes - https://t.co/ivzQmEBJvO
4. Multi-AZ Kubernetes Cluster - https://t.co/JtECajxo7y
5. Build a Container with No OS - https://t.co/z0mYCnKtqc
6. Retirement anounecment of Nginx Ingress Controller - https://t.co/WHzwsg18rR

🎓 𝗖𝗲𝗿𝘁𝗶𝗳𝗶𝗰𝗮𝘁𝗶𝗼𝗻𝘀 & 𝗗𝗶𝘀𝗰𝗼𝘂𝗻𝘁𝘀

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👉 KodeKloud 50% discount - https://t.co/Tvte5DYUB4

Which resource are you diving into this week? Drop a comment!

#DevOps #Learning #techtips

[Tom Dörr @tom_doerr]

Transparent file encryption in a git repository

[Elizabeth Fuentes @ElizabethFue12]

✅ AWS open source newsletter, #215

#AWSOpenSource #CloudComputing #DevOps #AI #Kubernetes

https://t.co/1il8rZUIyQ

[JothiBasu Kamaraj @jbon_tech]

@AiAristotle @AravSrinivas How about travel , it is giving any correct insight ?

[LearnKube @learnk8s]

K8s cleaner is a controller that identifies, removes, or updates stale/orphaned or unhealthy resources to maintain a clean and efficient Kubernetes cluster

➤ https://t.co/bTKci906FO

[Tom Dörr @tom_doerr]

Deploy Kubernetes on your own hardware

[TechOps Examples @techopsexamples]

Not a joke, many DevOps Engineers don’t fully understand how image scanning actually fits in their workflows.

Here, I’ve made this to help you better understand.

56K+ read my DevOps and Cloud newsletter: https://t.co/wwkI6UOSo4

What do we cover:

DevOps, Cloud, Kubernetes, IaC, GitOps, MLOps

🔁 Consider a Repost if this is helpful

[Kubetools @kubetools]

OpenCost - Cross-cloud cost allocation models for Kubernetes workloads https://t.co/GLvRks13Kg #kubernetes #kubetools #devops #opensource

[AWS Community Builders Blogs @aws_cb_blogs]

New post by N Chandra Prakash Reddy.

Chaos Testing AWS EKS with AWS FIS | AWS Community Day Bangalore 2025
https://t.co/jDJB2anLMz
#apigateway #aws #kubernetes #microservices

[JothiBasu Kamaraj @jbon_tech]

@FOSSChennai Any online link is there to join @FOSSChennai ?

[JothiBasu Kamaraj @jbon_tech]

@aiwithlady Ai

[TRÄW🤟 @thatstraw]

Quick Linux tip:

Got log files compressed as .gz? You don’t need to extract them to read or search through the content.

Use the 'z' tools directly:

• zcat - view the file
• zless - scroll through it
• zgrep - search inside it
• zegrep - search with extended regex
• zfgrep - search for fixed strings
• zcmp/zdiff - compare files

These commands let you inspect compressed logs without unpacking them first, perfect for quick troubleshooting sessions.

[Raul Junco @RaulJuncoV]

If you like backend, I share more in my newsletter.

https://t.co/0nbQeQPWSw