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How Queueing Theory Makes Systems Reliable

One2N

Team

Ever wondered why some systems crumble at high load while others handle spikes with ease? This guide breaks down queueing theory in plain English, showing reliability engineers how to spot danger zones, manage capacity, and avoid late-night incidents.

November 21, 2025 | 2 min read

Error Budget Calculation: Downtime Minutes for every SLO

One2N

Team

Learn how to make sense of error budgets by translating SLO percentages into real downtime minutes, so you know exactly what’s at stake for your system’s reliability. See easy tables, practical examples, and clear advice on using error budgets to guide engineering work and set realistic release goals.

November 19, 2025 | 3 min read

How to read SRE graphs without lying to yourself

One2N

Team

Are your SRE charts messing with your head? We’ll show you step by step how to actually make sense of those dashboards: percentiles, averages, heatmaps, and all, so you spot real issues fast. No jargon, just practical advice from daily SRE work.

November 14, 2025 | 3 min read

Percentiles in SRE: Why averages lie about latency

One2N

Team

Ever wondered why your apps seem slow even when the average latency looks fine? SREs use percentiles to uncover the real story behind performance making sure users get the speed they expect. Learn how One2N’s experts measure what truly matters, spot hidden issues, and keep systems reliable.

November 12, 2025 | 3 min read

Deploying a scalable NATS cluster part 2: hands-on demo

Barun Debnath

SRE @One2N

Learn how to deploy a scalable, production-ready NATS cluster using Docker, complete with observability via Prometheus and Grafana. This hands-on demo covers cluster design, stream replication, JetStream, DLQ, and load testing; helping you build robust messaging infrastructure for cloud native applications at scale.

November 12, 2025 | 7 min read

Comparing Latency vs Throughput: why high utilisation hurts reliability

One2N

Team

Ever wondered why your systems slow down or fail during peak times? This guide explains in plain English how latency and throughput affect reliability, and why running too close to max capacity leads to problems

November 7, 2025 | 6 min read

SRE math every engineer should know: a practical guide

Srivatsa RV

SRE @One2N

Curious how top engineers keep systems reliable? This guide breaks down the math behind Site Reliability Engineering into simple, real-life examples whether it’s understanding error budgets, decoding percentiles, or making sense of dashboards. Perfect if you want to stop firefighting and start making data-driven, confident decisions on call.

November 5, 2025 | 8 min read

From Aircraft to Cloud: my experience completing the SRE Bootcamp

Pankaj Goriya

SRE @One2N

From fixing aircraft to building cloud systems, this is my journey through One2N’s hands-on SRE Bootcamp. I share how real-world challenges and team culture helped me grow as an engineer, plus some honest advice for anyone thinking about site reliability engineering.

October 29, 2025 | 4 min read

Debugging KubeVPN's DNS resolution failures

Nilesh D

Software Engineer @One2N

The other day, I was trying to access the Go documentation at go.dev, but the page wouldn't load. Not on Chrome, not in incognito mode, not even on Safari. The error was simple but frustrating: "Could not resolve hostname".

September 30, 2025 | 3 min read

What happens when you run Terraform commands?

Sahil Joseph

SRE @One2N

Saurabh Hirani

Principal SRE @One2N

Have you ever wondered what happens when you run Terraform commands? In this post, we will explore the following topics to gain a better understanding of Terraform internals: Architecture and provider plugin architecture, Credential management, State locking and Debugging

September 24, 2025 | 7 min read

Daily driving Omarchy and Hyprland as a CTO

Jaideep Khandelwal

CTO @One2N

A hands-on review of Omarchy Linux, an easy-to-install Arch-based Linux distro with Hyprland window manager pre-configured out of the box. Learn what works, what breaks, and who should use it.

September 16, 2025 | 5 min read

DORA Metrics: Useful or Fluff

Jaideep Khandelwal

CTO @One2N

In this post, we shed light on why following DORA metrics without context might cause more harm than good. We also show how leaders can use a practical, strategic approach to connect DORA metrics to meaningful business outcomes.

September 3, 2025 | 14 min read

A pragmatic guide to get started with OpenTelemetry

Spandan Ghosh

Content @One2N

A guide explaining OTEL, monitoring vs. observability, telemetry’s pillars, OTEL instrumentation, and seamless backend migration. Includes practical migration strategies and trade-offs for SREs adopting OTEL.

August 20, 2025 | 5 min read

How we solved a critical site-to-site VPN IP address conflict in AWS

Rishiraj Rathore

SRE @One2N

Spandan Ghosh

Content @One2N

How One2N solved a critical site-to-site VPN IP address conflict in AWS, including details on the problem, failed solutions, and the final parallel system approach that worked with automation.

July 15, 2025 | 7 min read

DARE to question your alerts?

Saurabh Hirani

Principal SRE @One2N

Alert fatigue is real and it's hurting your on-call teams. This post breaks down how to make alerting systems smarter through regular alert analysis. Learn how to turn noisy alerts into actionable insights that drive real resilience.

June 25, 2025 | 3 min read

Implementing secure error handling in Go for B2B SaaS applications

Mohit Kumar

Software Engineer

A centralized error handling library helped our team improve user experience and strengthen security in Go-based microservices by replacing leaky, inconsistent error messages with structured, user-friendly responses.

June 18, 2025 | 5 min read

Deploying a scalable NATS cluster part 1: core architecture and considerations

Barun Debnath

SRE @One2N

In this blog, we provide a detailed overview of the NATS architecture, key cluster design considerations, and best practices for deploying a scalable and reliable NATS messaging system. We cover topics like high availability, fault tolerance, message durability, and the infrastructure requirements.

June 4, 2025 | 5 min read

Optimizing MongoDB backup strategy: lessons from achieving a 1-Hour RPO

Mihir Bhagwat

SRE @One2N

Sanket Rajgiri

SRE @One2N

This post walks through how we implemented a disaster recovery solution for a MongoDB cluster running on Google Kubernetes Engine (GKE) using the MongoDB Community Operator

May 14, 2025 | 8 min read

Transforming alerting with GitOps - a journey in automating Elasticsearch alerts

Srivatsa RV

SRE @One2N

This blog tells you how to approach alerting from first principles while on the ELK Stack. We cover how to capture the right signals that a NOC team looks at, structure them as alert definitions and operationalize them relying on GitOps. This ensures teams can act on alerts confidently.

April 29, 2025 | 9 min read

GitHub runners fundamentals and self-hosted runner setup

Rajesh Jangid

SRE

This post is an introduction to Github runners, different ways in which they can be deployed, and a comparison between managed and self hosted runners.

April 10, 2025 | 5 min read

All software is assembled

Chinmay Naik

CEO @One2N

Learn why modern software development relies more on strategic assembly of third-party components over building them from scratch.

April 8, 2025 | 4 min read

Best practices for upgrading EKS clusters

Aashi Rathore

SRE @One2N

Upgrade your Amazon EKS clusters with confidence. Learn best practices to avoid common mistakes, prepare your cluster, and execute a smooth upgrade process for improved performance, security, and cost savings.

March 25, 2025 | 5 min read

How to port-forward from EC2 instances without the need for opening any SSH ports or creating Bastion hosts

Harsh Mishra

SRE @One2N

Learn how to port-forward from EC2 instances in private subnets without opening SSH ports or setting up bastion hosts. This AWS SSM Session Manager guide provides a secure, cost-effective, and simple solution for EC2 access and port forwarding.

March 10, 2025 | 5 min read

Gotchas to avoid when using AWS spot instances in production

Aashi Rathore

SRE @One2N

In this post, we’ll explore the fundamentals of spot instances, the risks associated with their use in production, and key strategies to ensure seamless operations.

February 24, 2025 | 4 min read

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AWS Outage: Real Costs & Disaster Recovery | One2N Bits Ep.4

Jaideep Khandelwal

CTO @One2N

Srivatsa RV

SRE @One2N

Srivatsa and Jaideep dive into disaster recovery essentials, right after the recent AWS outage. Learn why real business continuity demands more than cloud promises, how RTO/RPO set the stakes, and the economics behind DR setups. Packed with practical examples and leadership insights for SREs, CTOs, and engineering teams.

November 18, 2025 | AWS Outage: Real Costs & Disaster Recovery | One2N Bits Ep.4

Common pitfalls in Data Analytics: Patterns over Tools | One2N Bits Ep.3

Kshitish Deshpande

Software Engineer @One2N

Jaideep Khandelwal

CTO @One2N

How does analytics break in real-world startups and scaleups? In this episode, Kshitish from One2N breaks down the most common traps teams fall into not just technical, but mental models dragged from transactional to analytical systems.

November 4, 2025 | Common pitfalls in Data Analytics: Patterns over Tools | One2N Bits Ep.3

Extreme Programming in the Age of AI | One2N Cursor Meetup Pune

Nilesh D

Software Engineer @One2N

Tune in to this session from the first official Cursor Meetup in Pune, hosted at One2N, where Nilesh D, Software Engineer at One2N explores how Extreme Programming principles can level up your dev workflows and integrate with AI tools like Cursor.

September 27, 2025 | Extreme Programming in the Age of AI | One2N Cursor Meetup Pune

AI Enabled SRE Practices | One2N Cursor Meetup Pune

Saurabh Hirani

Principal SRE @One2N

Tune in to this session from the first official Cursor Meetup in Pune, hosted at One2N, this lightning talk is by Saurabh Hirani on what are AI enabled SRE (Site Reliability Engineering) practices.

September 27, 2025 | AI Enabled SRE Practices | One2N Cursor Meetup Pune

UNIX Philosophy for Modern Engineers | Command Line Heroes

Chinmay Naik

CEO @One2N

Command Line Heroes is a new meetup series for developers, SREs, and terminal enthusiasts who love working with the command line. ​Our episode 1 kicks off with real-world stories, and hands-on challenges along with a geek out session that let's your show off your terminal setup, or learn from ones who do!

August 23, 2025 | UNIX Philosophy for Modern Engineers | Command Line Heroes

DORA Metrics or Theatrics? What to Measure, What to Ignore, and How to Improve | One2N Bits Ep. 2

Jaideep Khandelwal

CTO @One2N

Chinmay Naik

CEO @One2N

Chinmay and Jaideep talk about DORA metrics: what they are, when they matter, and how to use them without turning it into measurement theater. From deployment frequency to time to recover, they cover how these metrics reflect engineering culture, platform maturity, and real business impact.

August 21, 2025 | DORA Metrics or Theatrics? What to Measure, What to Ignore, and How to Improve | One2N Bits Ep. 2

AWS Billing Nightmares: Hidden Costs That Can Burn Your Budget | One2N Bits Ep. 1

Pranay Narang

SRE @One2N

Chinmay Naik

CEO @One2N

Dive into the world of cloud cost horrors with Pranay and Chinmay in the premiere episode of One2N Bits! In this quick 5-minute chat, we uncover real-world AWS billing scares that catch even seasoned teams off guard from massive EBS volume costs on unused disks to sneaky networking fees and the sudden spike from public IP billing.

July 28, 2025 | AWS Billing Nightmares: Hidden Costs That Can Burn Your Budget | One2N Bits Ep. 1

Optimizing Kafka Performance with Automated Benchmarks

Kalpesh Deo

Lead Software Engineer @One2N

Curious about getting the best performance out of your Kafka setup? In this talk, Kalpesh from One2N walks us through his experience of benchmarking Kafka producers using the kafka-producer-perf-test.sh tool. By experimenting with settings like compression.type, linger.ms, and batch.size, Kalpesh’s team managed to boost throughput by 245%, cut down latency by 90%, and save 89% on storage all by fine-tuning some key configurations. What you’ll learn: How tuning Kafka producer settings impacts real throughput, latency, and storage. The power of scripting to automate and simplify performance benchmarking. Techniques to interpret and apply benchmarking results for your own Kafka deployment. Kalpesh’s 16+ years in backend, cloud, and distributed engineering shine through as he delivers actionable insights for engineers seeking to fine-tune their data pipelines

June 7, 2025 | Optimizing Kafka Performance with Automated Benchmarks

Pragmatic Software Engineering Stories from the Trenches | PuneFOSS 3.0

Chinmay Naik

CEO @One2N

At FOSS United Pune, Chinmay Naik, Founder of One2N shared real-world war stories. From debugging mysteries to incident response chaos, this was all about the messy, behind-the-scenes moments that teach you how to build better software.

April 5, 2025 | Pragmatic Software Engineering Stories from the Trenches | PuneFOSS 3.0

A SRE’s Guide to LLMOps: Deploying and Managing AI⧸ML Workloads using Kubernetes

Harsh Mishra

SRE @One2N

In this webinar, Harsh Mishra, an SRE at One2N Consulting, discusses the unique challenges and solutions of LLMOps from an SRE viewpoint. The best practices he outlines will provide viewers with a great jumping off point for LLMOps, as well as future-proofing their cloud strategy to include the rapidly evolving field of GenAI and LLMs.

March 11, 2025 | A SRE’s Guide to LLMOps: Deploying and Managing AI⧸ML Workloads using Kubernetes

What does It take to build a Software Defined Data Center at scale

Srivatsa RV

SRE @One2N

Join Srivatsa RV, SRE at One2N, as he breaks down the complexities of scaling a Software-Defined Data Center. Learn how modern infrastructure uses virtualization, hyperconvergence, and distributed systems to deliver resilient, API-driven solutions. 🔍 Key Topics Covered - Virtualization & Hypervisors: Type-1 vs. Type-2, KVM, and Nutanix AHV - Hyperconverged Infrastructure (HCI): Scalability, fault tolerance, and real-world deployments (e.g., 15,000+ VMs across 800 servers) - Failure Modes: Disk, node, and cluster-level resilience strategies Cool Tech Demos: - VM Live Migrations: Mitigating hardware failures without downtime - Data Center-Level Failovers: Ensuring business continuity - Capacity Planning: Metrics-driven approaches for CPU, memory, and storage

March 1, 2025 | What does It take to build a Software Defined Data Center at scale

ABC of LLMOps - What does it take to run self-hosted LLMs｜Rootconf mini 2024

Jaideep Khandelwal

CTO @One2N

Lessons from deploying open-source models on Kubernetes GPUs, managing vector DBs & building RAG apps

February 5, 2025 | ABC of LLMOps - What does it take to run self-hosted LLMs｜Rootconf mini 2024

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