Programming, architecture, application development, message queues, middleware, databases, containerization, big data, image processing, machine learning, AI, personal growth.
This article examines the replication and partitioning designs of Redis, Kafka, and Elasticsearch, drawing on concepts from Designing Data‑Intensive Applications to illustrate core distributed‑system principles, common challenges, and practical configuration options.
This article presents a typical multi‑layer system architecture, examines the theoretical performance limits of each component—including load balancers, HTTP servers, Redis, message queues, relational databases and network bandwidth—and evaluates whether the combined stack can sustain one million concurrent requests.
This tutorial explains how to leverage Redis Stack modules—especially RediSearch and RedisJSON—to store movie data, build a searchable JSON index, and perform advanced full‑text queries, highlighting, sorting, pagination, custom tokenization, scoring, and index aliasing, with Go code examples.
This article explains how to leverage Redis Stack modules such as RedisJSON, RediSearch, and RedisTimeSeries to store, index, and query high‑dimensional vectors for image‑search services, providing Go code examples for index creation, bulk insertion, memory inspection, and K‑Nearest‑Neighbour vector searches with optional filtering.
This article explains the architecture of an image‑search system that extracts feature vectors, stores them in a vector database, and performs similarity queries, then proposes an optimized design that offloads feature extraction to a lightweight MobileNet model running in the browser, reducing latency, server load, and component complexity.
This article explains the role of kube-scheduler in Kubernetes, details its scheduling workflow and plugin framework, and demonstrates how to define a custom scheduler by configuring KubeSchedulerConfiguration, creating a ConfigMap, deploying it via a Deployment, and verifying its operation alongside the default scheduler.
This article explains how Kubernetes routes traffic from a pod to a Service and back to another pod, details the role of kube‑proxy with iptables or ipvs, and discusses how long‑lived connections are managed and potential load‑balancing issues.
The author recounts taking the Elastic Certified Engineer exam in March 2024, outlines the official syllabus, shares ten hands‑on exam tasks with code snippets, and provides practical tips and personal reflections on preparation and execution.
The author shares how they passed the Certified Kubernetes Administrator exam with a 95 score, explains the certification’s scope, provides practical preparation tips, environment requirements, key study resources, and a concise strategy to quickly master the 17 recurring exam questions.
This article introduces Redis Stack’s RedisJSON module, explains its JSONPath syntax, details the full set of JSON commands for handling various data types, provides practical code examples, and highlights how RedisJSON enables Redis to function as a document, full‑text, and vector search database.
