Aditya Krishnakumar
Senior Site Reliability Engineer at SentinelOne
Ahmedabad, India
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Aditya Krishnakumar is a Senior Site Reliability Engineer at SentinelOne and has 8+ years of experience with Cloud, DevOps and Kubernetes infrastructure. His current focus is on Platform Reliability and Data Infrastructure within SentinelOne and has been a technical reviewer for books on Serverless and Cloud Native Cybersecurity.
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Operating OpenSearch at Scale: Fixing Hot Shards, Disk Imbalance, and Cluster Instability
Running OpenSearch in production at scale is very different from what tutorials or books show. When you manage many clusters, you start seeing issues you didn’t know existed, like shard and disk imbalance, uneven traffic distribution, and unstable cluster states. These problems can degrade search performance and even cause incidents.
In this session, we will share real challenges we faced while operating large OpenSearch clusters and the practical solutions we used to stabilize them. We will explore how shard distribution can silently create problems, why some nodes end up using much more disk than others, and how clusters behave under heavy indexing and query load.
This talk focuses on the operational side of running OpenSearch in production. We’ll discuss strategies for better shard allocation, preventing disk imbalance, controlling indexing pressure, and keeping clusters stable under load.
Attendees will leave with practical techniques they can apply to run OpenSearch clusters reliably at large scale and improve stability and performance in real-world environments.
kro: Cross-Cloud Resource Composition and the Emerging Standard for Kubernetes-Native Platforms
Kubernetes package management is at an inflection point. kro (Kubernetes Resource Orchestrator) (a SIG-Cloud Provider project) represents an emerging architectural pattern for Kubernetes-native resource composition.
This session explores:
The paradigm shift: From Helm's client-side templating to kro's in-cluster, dependency-aware orchestration
Resource composition as a pattern: How ResourceGraphDefinitions abstract complexity for safe, declarative multi-resource deployments
The bridge from Helm: Why composition is the natural next step for Helm-invested teams
Through live demos, attendees will understand why kro marks a turning point in cloud-native platform abstraction.
Running Kubernetes on Raspberry Pis with k3s and Open-Source Observability
This talk walks through the complete journey of setting up a 3-node k3s cluster on Raspberry Pis using DietPi as the base OS, tackling real-world challenges like resource optimization, networking, and storage constraints.
We’ll cover essential Kubernetes fundamentals applied to edge and low-cost environments, including cluster bootstrapping, workload scheduling, and best practices for managing microservices on limited hardware. Most importantly, you’ll learn how to implement production-grade observability using Grafana and open-source tools without breaking the budget.
Perfect for learners exploring Kubernetes in development environments, students, and organizations looking to understand cloud-native concepts with minimal infrastructure investment.
Platform Engineering 101 with Backstage
My talk discusses about platform engineering, its principles, why should an engineering org consider platform engineering along with differences between DevOps, Platform Engineering and Site Reliability Engineering along with introducing Backstage as a platform to develop your Internal Developer Portal as well a short demo on the core features of Backstage
OpenSearchCon India 2026 Sessionize Event Upcoming
Aditya Krishnakumar
Senior Site Reliability Engineer at SentinelOne
Ahmedabad, India
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