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System Design – Notification System
Designing a system similar to Twilio, which is a cloud communications platform, requires careful planning and architecture to ensure high availability, scalability, and fault tolerance. Some basic requirements: Below is an overview…
All things about TCP vs UDP
TCP (Transmission Control Protocol) and UDP (User Datagram Protocol) are both core protocols of the Internet protocol suite, but they serve different purposes and have distinct characteristics. Aspect TCP (Transmission Control Protocol)…
AWS Interview Questions(2024)
AWS, or Amazon Web Services, is a comprehensive cloud computing platform provided by Amazon. It offers a wide range of cloud services, including computing power, storage options, networking, and databases, delivered as…
All things about k8s
K8s Architecture (image source: https://kubernetes.io/docs/concepts/architecture/) Kubernetes (K8s) architecture is designed to be distributed and modular, consisting of multiple components that work together to manage containerized applications across a cluster of nodes. Here’s…
All things about Istio
Istio is an open-source service mesh that provides a way to control how microservices share data and resources. It’s designed to handle the complexity of network management inherent in microservice architectures, providing…
Context-switching/cgroup in Linux
context-switching Context switching in Linux refers to the process of storing and restoring the execution context or state of a CPU so that it can resume execution of a different process. control-groups…
System Design – A Distributed High-throughput Counter
Designing a high-throughput, scalable counter system with a focus on write-heavy operations involves several key components and considerations. Now, the system needs to handle a large volume of write operations (1M writes/sec)…
System Design for Task Scheduling with Dependencies
Overview Designing a task scheduler involves handling tasks with varying frequencies and dependencies. The system must ensure tasks are executed on schedule, dependencies are respected, and long-running tasks are managed effectively. High-Level…
Linux Commands Examples
nslookup nslookup is a cross-platform command-line tool for querying the Domain Name System (DNS). Purpose Command Basic DNS Lookup nslookup example.com Find Mail Servers for a Domain nslookup -type=mx example.com Query Specific…