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Writing on GPUs, LLMs, MLOps, Kubernetes — and mindset · 3517 posts
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Sprint Planning and Estimation Meeting English Expression Guide
An English expression guide for sprint planning and estimation meetings covering story point discussions, tech debt conversations, and backlog refinement.
2026-03-12 · 22 min read #english#sprint-planning#estimation#agile#scrumGitHub Actions Advanced Patterns: Reusable Workflows, Composite Actions, and Monorepo CI/CD Optimization
Covers advanced GitHub Actions patterns including pipeline templating with Reusable Workflows, reusable step composition with Composite Actions, and monorepo CI/CD optimization using path-filter, matrix, and caching stra
2026-03-12 · 16 min read #devops#github-actions#ci-cd#monorepo#reusable-workflowsRedis Cluster Architecture and High Availability Operations Guide: Sentinel, Cluster Mode, Memory Optimization, and Disaster Recovery
Compare Redis Standalone, Sentinel, and Cluster deployment modes. Cover Sentinel quorum-based failure detection and automatic failover, Cluster hash slots and resharding, PSYNC replication, maxmemory policies and LRU/LFU
2026-03-12 · 14 min read #database#redis#cluster#sentinel#high-availabilityPostgreSQL VACUUM, MVCC, and Bloat Optimization Guide
A comprehensive guide to PostgreSQL VACUUM, MVCC internals, and table bloat optimization for maintaining database performance.
2026-03-12 · 19 min read #database#postgresql#vacuum#mvcc#autovacuumJapanese Output Drill #25 — Shopping/Convenience Store/Department Store
Practical Japanese output training for shopping at convenience stores and department stores.
2026-03-12 · 4 min read #japanese#speaking#shopping#convenience-store#department-storeAI Agent Function Calling Practical Implementation: Tool Use Patterns, Error Handling, Security Design, and Production Deployment
Practical implementation of Function Calling and Tool Use patterns. Covers OpenAI, Anthropic, LangChain tool calling APIs, error handling, retry strategies, prompt injection defense, and MCP standard for production chatb
2026-03-12 · 21 min read #chatbot#function-calling#tool-use#ai-agent#langchainMulti-Turn Conversation Management and Context Optimization: LLM Chatbot Memory Patterns, Conversation Summarization, and Sliding Window Strategies
Covers effective memory patterns for managing multi-turn conversations in LLM chatbots. Explores Buffer, Summary, and Vector Store memory, Sliding Window strategies, conversation summarization techniques, token cost opti
2026-03-12 · 19 min read #chatbot#multi-turn#conversation-management#memory-pattern#context-windowDistributed Lock Pattern Comparison: Redis Redlock vs ZooKeeper vs etcd — Consistency and Availability Trade-offs
Compare distributed lock implementation patterns that guarantee mutual exclusion in distributed systems. Analyze consistency, availability, and performance trade-offs through the Redis Redlock algorithm and Martin Kleppm
2026-03-12 · 17 min read #architecture#distributed-lock#redis#redlock#zookeeperService Mesh Production Guide: mTLS, Traffic Management, and Observability with Istio, Envoy, and Linkerd
Cover service mesh core concepts (data plane/control plane), Istio architecture (Istiod, Envoy sidecar), VirtualService and DestinationRule, traffic splitting, circuit breaking, mTLS configuration, Linkerd comparison, Am
2026-03-12 · 11 min read #architecture#service-mesh#istio#envoy#linkerdKServe Model Serving Complete Guide: InferenceService, Canary Deployment, Transformer, and InferenceGraph Production Operations
Covers Kubernetes-based model serving with KServe. Model deployment with InferenceService CRD, safe rollouts with Canary strategy, pre/post-processing pipelines with Transformer, and DAG-based composite inference with In
2026-03-12 · 17 min read #ai-platform#kserve#model-serving#kubernetes#inference-graphFeature Store Design and Operations Guide: Building Online/Offline Stores with Feast and ML Feature Pipeline Automation
A comprehensive guide covering Feature Store core concepts (Online/Offline Serving, Feature Freshness, Point-in-Time Correctness), Feast architecture, feature definitions and entity design, materialization pipelines, Onl
2026-03-12 · 13 min read #ai-platform#feature-store#feast#mlops#online-storeRAG Paper Survey: The Evolution of Retrieval-Augmented Generation — From RETRO to Self-RAG and Corrective-RAG
Traces the evolution of RAG research through papers. Compares architectures and benchmarks from the original RAG to RETRO large-scale retrieval, Self-RAG self-reflection, and Corrective-RAG retrieval quality evaluation.
2026-03-12 · 22 min read #ai-papers#rag#self-rag#corrective-rag#retroKubernetes Gateway API Production Guide: From Ingress Migration to HTTPRoute, GRPCRoute, and Envoy Gateway Deployment
A production deployment guide for Kubernetes Gateway API v1.2 covering HTTPRoute, GRPCRoute, and Envoy Gateway. Covers Ingress migration, TLS termination, traffic splitting, header-based routing, rate limiting, and monit
2026-03-12 · 12 min read #kubernetes#gateway-api#httproute#grpcroute#envoy-gatewayArgoCD GitOps Complete Guide: Declarative Kubernetes Deployment with ApplicationSet, Sync Waves, and Hooks
A comprehensive guide to GitOps-based declarative Kubernetes deployment with ArgoCD. Covers ApplicationSet generators, Sync Waves, Hooks for deployment ordering, multi-cluster deployment, RBAC, secrets management, and mo
2026-03-12 · 13 min read #devops#argocd#gitops#applicationset#sync-wavesDiffusion Model Paper Survey: Evolution of Image Generation from DDPM to Stable Diffusion, DiT, and SDXL
A comprehensive survey covering the DDPM/DDIM forward-reverse diffusion theory, score-based models, Latent Diffusion (Stable Diffusion) VAE+U-Net architecture, Classifier-free Guidance, DiT (Diffusion Transformer) adaLN-
2026-03-12 · 18 min read #ai-papers#diffusion-model#ddpm#stable-diffusion#ditOpenTelemetry Distributed Tracing Practical Guide: Building and Operating Instrumentation, Collection, and Analysis Pipelines
A comprehensive guide covering OpenTelemetry architecture (SDK, API, Collector, Exporters), trace model (Span, SpanContext, TraceID, SpanID, Baggage), manual instrumentation in Python/Node.js/Go, auto-instrumentation, Co
2026-03-11 · 13 min read #observability#opentelemetry#distributed-tracing#instrumentation#monitoringKubernetes Autoscaling Complete Guide: Production Workload Auto-Scaling Strategies with HPA, VPA, and KEDA
An in-depth comparison of HPA v2 custom metric-based horizontal scaling, VPA automatic resource adjustment, and KEDA event-driven scaling. Covers Metrics Server configuration, scaling algorithms, cooldown strategies, com
2026-03-11 · 14 min read #kubernetes#autoscaling#hpa#vpa#kedaRAG Pipeline Production Guide: From Vector DB Selection to Chunking, Reranking, and Evaluation
A comprehensive guide to building RAG (Retrieval-Augmented Generation) pipelines for production. Covers embedding model comparison, vector DB selection (Pinecone, Milvus, Weaviate, Qdrant, Chroma), chunking strategies, h
2026-03-11 · 17 min read #llm#rag#vector-database#retrieval#embeddingPractical Guide to LLM Fine-Tuning: Efficient Domain Adaptation with LoRA, QLoRA, and PEFT
An in-depth analysis of LoRA low-rank decomposition, QLoRA 4-bit quantized fine-tuning, and the Hugging Face PEFT library. Covers dataset preparation, hyperparameter tuning, evaluation metrics, comparison with full fine-
2026-03-11 · 13 min read #llm#fine-tuning#lora#qlora#peftComplete Guide to Japanese IT Incident Response and Postmortem Expressions
A complete guide to Japanese expressions for IT incident response and postmortem reviews.
2026-03-11 · 34 min read #japanese#incident-response#postmortem#it-expressions#business-japanese