Tech Stacks
Deep Dives

01

Tech Stacks Apache Kafka Distributed event streaming — pub/sub, partitions, replicas, acks, and exactly-once delivery.

Mar 31, 2023 ↗

02

Tech Stacks Kubernetes (k8s) Container orchestration — pods, deployments, services, and the control plane explained.

Apr 01, 2023 ↗

03

Tech Stacks Load Balancing L4 vs L7, balancing algorithms, health checks, and how traffic spreads across servers.

Apr 02, 2023 ↗

04

Tech Stacks Caching Cache strategies, eviction policies, write-through vs write-back, and avoiding stampedes.

Apr 02, 2023 ↗

05

Tech Stacks Sharding Horizontal partitioning — hash vs range, resharding, and the hot-key problem.

Apr 02, 2023 ↗

06

Tech Stacks Message Queue Async decoupling, delivery guarantees, and queue vs commit-log semantics.

Apr 02, 2023 ↗

07

Tech Stacks NoSQL Key-value, document, column-family, and graph stores — when SQL isn't enough.

Apr 02, 2023 ↗

08

Tech Stacks OAuth 2.0 Authorization flows, tokens, scopes, and the four grant types demystified.

Jun 17, 2023 ↗

09

Tech Stacks Spark Join Strategy Broadcast, shuffle hash, and sort-merge joins — picking the right strategy at scale.

Jul 15, 2023 ↗

10

Tech Stacks GraphQL & REST Comparison A deep technical comparison — resources, API design, resolvers, and tradeoffs.

Sep 08, 2023 ↗

11

Tech Stacks Redis In-memory data structure store — data types, persistence, eviction, replication, and Cluster.

Sep 10, 2023↗

12

Tech Stacks Object Storage & S3 Object vs block/file, the flat namespace, erasure-coded durability, presigned URLs, and tiers.

Sep 12, 2023↗

13

Tech Stacks Elasticsearch The inverted index, analyzers, BM25 relevance, shards and replicas, and queries vs filters.

Sep 14, 2023↗

14

Tech Stacks Database Indexing B-tree vs LSM-tree, clustered vs secondary, composite and covering indexes.

Sep 16, 2023↗

15

Tech Stacks Vector Databases Embeddings, approximate nearest neighbor (HNSW/IVF), RAG, and hybrid search.

Sep 18, 2023↗

16

Tech Stacks CDN Edge caching, PoPs and anycast, cache-control and TTLs, invalidation, and dynamic acceleration.

Sep 20, 2023↗

17

Tech Stacks Docker & Containers Containers vs VMs, namespaces and cgroups, image layers, the Dockerfile, and registries.

Sep 22, 2023↗

18

Tech Stacks CI/CD CI vs delivery vs deployment, pipeline stages, immutable artifacts, and rollout strategies.

Sep 24, 2023↗

19

Tech Stacks Observability The three pillars (metrics, logs, traces), distributed tracing, SLOs, and alerting.

Sep 26, 2023↗

20

Tech Stacks DNS Resolution flow, record types, caching and TTL, GeoDNS and anycast, and reliability.

Sep 28, 2023↗

21

Tech Stacks API Gateway & Service Mesh Cross-cutting concerns, north-south vs east-west, the BFF pattern, and the sidecar mesh.

Sep 30, 2023↗

22

Tech Stacks gRPC & Protobuf Contract-first RPC, Protocol Buffers, HTTP/2, streaming, and gRPC vs REST vs GraphQL.

Oct 02, 2023↗

23

Tech Stacks WebSockets & Realtime Full-duplex real-time, WebSockets vs SSE vs long-polling, and scaling with a pub/sub backplane.

Oct 04, 2023↗