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Su San Talks Tech

Su San, former staff at several leading tech companies, is a top creator on Juejin and a premium creator on CSDN, and runs the free coding practice site www.susan.net.cn.

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Latest from Su San Talks Tech

100 recent articles max

Su San Talks Tech

Sep 9, 2026 · Backend Development

Master Linux Log Analysis: tail, less, grep, sed, awk Combo for Production Debugging

This article teaches practical Linux log analysis commands (tail, less, grep, sed, awk) with real-world scenarios like monitoring service startup, tracing orders, extracting error context, searching across rolled logs, counting exceptions, filtering noise, slicing time windows, and analyzing Nginx logs for top IPs and slow endpoints.

LinuxLog AnalysisNginx logs

0 likes · 10 min read

Master Linux Log Analysis: tail, less, grep, sed, awk Combo for Production Debugging

Su San Talks Tech

Sep 8, 2026 · Backend Development

EasyExcel Archived: Migrate to Apache Fesod for Better Performance & Long-Term Support

This article explains why EasyExcel was archived, introduces its successor FastExcel (now Apache Fesod), compares performance and features, provides migration steps with code examples, and recommends Apache Fesod for new and existing projects due to its streaming API, memory efficiency, and Apache Foundation backing.

Apache FesodApache IncubatorEasyExcel

0 likes · 15 min read

EasyExcel Archived: Migrate to Apache Fesod for Better Performance & Long-Term Support

Su San Talks Tech

Sep 5, 2026 · Artificial Intelligence

Alibaba's Open Code Review: Hybrid Deterministic + LLM Agent Beats Claude Code

Alibaba's open-source Open Code Review tool combines deterministic engineering with LLM agents to achieve precise, line-level code reviews with higher precision and 1/9 token usage compared to generic AI agents like Claude Code, based on internal validation across millions of defects.

AlibabaLLM-agentcode-review

0 likes · 13 min read

Alibaba's Open Code Review: Hybrid Deterministic + LLM Agent Beats Claude Code

Su San Talks Tech

Sep 2, 2026 · Artificial Intelligence

How to Connect GPT, DeepSeek, and Grok to Codex Using OpenCodex

This step‑by‑step guide shows how to install OpenCodex, configure multiple AI providers such as GPT, DeepSeek, and Grok, and switch between them within Codex to streamline complex refactoring, batch edits, and script generation tasks.

AI model integrationCodexDeepSeek

0 likes · 6 min read

How to Connect GPT, DeepSeek, and Grok to Codex Using OpenCodex

Su San Talks Tech

Sep 1, 2026 · Databases

Why OpenSearch Is Gaining Massive Adoption: Architecture, Features, and Performance

OpenSearch, originally a fork of Elasticsearch, has become an independent Apache‑2.0‑licensed search and analytics platform governed by the Linux Foundation; its five‑layer architecture, segment replication, read/write separation, GPU‑accelerated vector indexing, and strong community growth deliver up to 9.5× query speed and make it a compelling choice over Elasticsearch.

Apache 2.0OpenSearchVector Search

0 likes · 15 min read

Why OpenSearch Is Gaining Massive Adoption: Architecture, Features, and Performance

Su San Talks Tech

Aug 31, 2026 · Fundamentals

When to Use Git Merge vs Rebase: Pros, Cons, and Best Practices

The article explains why merge can clutter commit history in large teams, how a linear history created by rebase improves log readability, bisect, blame, and code review, and outlines the trade‑offs, pitfalls, and practical commands for safely using rebase.

GitGit Bisectcode-review

0 likes · 10 min read

When to Use Git Merge vs Rebase: Pros, Cons, and Best Practices

Su San Talks Tech

Aug 28, 2026 · Artificial Intelligence

LangChain, LangGraph, and LlamaIndex: How Do They Differ?

This article compares the three Python‑based LLM frameworks—LangChain, LangGraph, and LlamaIndex—by outlining each project's core purpose, architecture, strengths and weaknesses, typical use cases, and how they can be combined to build robust AI applications.

AI frameworksLLMLangChain

0 likes · 13 min read

LangChain, LangGraph, and LlamaIndex: How Do They Differ?

Su San Talks Tech

Aug 27, 2026 · Artificial Intelligence

How Redis Becomes the Real‑Time Data Backbone for AI

Redis has evolved from a pure cache middleware into a full‑stack AI data infrastructure, offering vector search, native vector sets, semantic caching, and an AI Agent context engine, with sub‑millisecond latency, high throughput, and detailed performance benchmarks that illustrate its strengths and trade‑offs.

AIJavaRedis

0 likes · 15 min read

How Redis Becomes the Real‑Time Data Backbone for AI

Su San Talks Tech

Aug 25, 2026 · Backend Development

Why gRPC Is Becoming the Default Choice for Microservices

The article explains why gRPC is gaining popularity by comparing its performance, streaming capabilities, and cross‑language contract advantages over traditional REST + JSON, and provides a step‑by‑step guide to building a complete gRPC service with Spring Boot 4.1.

HTTP/2ProtobufSpring Boot

0 likes · 20 min read

Why gRPC Is Becoming the Default Choice for Microservices

Su San Talks Tech

Aug 24, 2026 · Artificial Intelligence

9 Open-Source AI Coding Tools to Accelerate Your Project Experience

Based on a hands‑on evaluation, this guide presents nine open‑source AI coding tools—totaling over 650 k GitHub stars—organized by foundation and development stage, explains how each fits into a full coding workflow, and offers practical tips and pitfalls for effective use.

AI codingAgent ToolsGitHub

0 likes · 8 min read

9 Open-Source AI Coding Tools to Accelerate Your Project Experience