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Programmer1970
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Programmer1970

Formerly called 'Code to 35'. Add our main WeChat ID to access a wealth of shared resources (algorithms, interview prep, tech stacks: Java, Python, Go, big data). We mainly share serious development techniques, focusing on output-driven input. Occasionally we post life snippets and gossip. Our aim is to attract precise traffic and test advertising opportunities.

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Recent Articles

Latest from Programmer1970

100 recent articles max
Programmer1970
Programmer1970
Aug 22, 2025 · Industry Insights

India’s Outsourcing Alchemy: How Bangalore Fuels Global Tech Giants

While many lament the 996 grind, Bangalore’s engineers work around the clock, turning the city into a high‑speed code factory whose policies, 24‑hour delivery model, and English‑driven talent pipeline have propelled Indian firms like Infosys and TCS to deliver critical systems for Boeing, Microsoft, and the broader cloud‑native ecosystem.

BangaloreCloud NativeIndia
0 likes · 8 min read
India’s Outsourcing Alchemy: How Bangalore Fuels Global Tech Giants
Programmer1970
Programmer1970
Aug 12, 2025 · Operations

Ultimate Nginx Config: Load Balancing, Rate Limiting, Reverse Proxy, SSL & Cloud‑Native

This comprehensive guide walks through essential Nginx .conf settings—from global worker tuning and event module tweaks to reverse‑proxy, load‑balancing strategies, TLS hardening, IP whitelisting, static and dynamic caching, connection‑pool tweaks, high‑availability clustering, monitoring with Prometheus, OpenTelemetry tracing, and cloud‑native integration with Kubernetes and Istio—providing concrete examples, code snippets, and best‑practice recommendations.

Cloud NativeNginxReverse Proxy
0 likes · 18 min read
Ultimate Nginx Config: Load Balancing, Rate Limiting, Reverse Proxy, SSL & Cloud‑Native
Programmer1970
Programmer1970
Aug 5, 2025 · Backend Development

Logback Configuration in Spring Boot: Multi‑Env, Dynamic Levels, Async, Masking, MDC & Trace Integration

This guide walks through a complete Logback setup for Spring Boot, covering multi‑environment profiles, runtime log‑level changes via Actuator, async appender tuning, structured JSON output, sensitive‑data masking, MDC‑based distributed tracing, exception stack filtering, performance metrics and best‑practice recommendations.

AsyncAppenderMDCSpring Boot
0 likes · 17 min read
Logback Configuration in Spring Boot: Multi‑Env, Dynamic Levels, Async, Masking, MDC & Trace Integration
Programmer1970
Programmer1970
Jul 25, 2025 · Backend Development

Netty Performance Tuning: Zero‑Copy, Off‑Heap Memory Management, and EventLoop Thread Model Optimization

This article analyzes the root causes of high CPU usage, GC pauses, and thread contention in Netty‑based messaging systems and presents a step‑by‑step solution covering zero‑copy with CompositeByteBuf and FileRegion, off‑heap Direct Buffers with PooledByteBufAllocator, and fine‑tuned EventLoopGroup configurations, backed by concrete benchmark data.

Java NIONettyPerformance Tuning
0 likes · 11 min read
Netty Performance Tuning: Zero‑Copy, Off‑Heap Memory Management, and EventLoop Thread Model Optimization
Programmer1970
Programmer1970
Jul 17, 2025 · Cloud Native

Nacos in Spring Cloud: Split‑Brain, Timeout, and Performance Deep Dive

This article analyzes three critical issues when using Nacos as a service registry in Spring Cloud—network partition (split‑brain), registration timeout, and high‑concurrency performance bottlenecks—explaining their root causes, code‑level mechanisms, and practical mitigation strategies, and concludes with a feature‑by‑feature comparison of Nacos, Eureka, and Zookeeper.

CAP theoremNacosPerformance Tuning
0 likes · 9 min read
Nacos in Spring Cloud: Split‑Brain, Timeout, and Performance Deep Dive
Programmer1970
Programmer1970
Jun 30, 2025 · Fundamentals

How Do Java Annotations Work Inside the JVM? From Compile‑time to Runtime Proxies

The article explains the complete lifecycle of Java annotations, covering how the compiler represents them in the AST, how retention policies affect bytecode generation, how the JVM parses annotation attributes during class loading, and how dynamic proxy objects are created and used at runtime, with concrete Spring framework examples.

Dynamic ProxyJVMJava
0 likes · 12 min read
How Do Java Annotations Work Inside the JVM? From Compile‑time to Runtime Proxies
Programmer1970
Programmer1970
Jun 21, 2025 · Operations

Core Measures for 99.99% Service Availability – A High‑Frequency Interview Question

The article explains how to achieve 99.99% high availability in distributed systems—equivalent to less than 53 minutes of downtime per year—by combining redundancy and failover, automated operations with Kubernetes and monitoring, and strong data‑consistency mechanisms, illustrated with real‑world cases from Alibaba, Netflix and Ant Financial.

High AvailabilityKubernetesPrometheus
0 likes · 8 min read
Core Measures for 99.99% Service Availability – A High‑Frequency Interview Question
Programmer1970
Programmer1970
Jun 17, 2025 · Fundamentals

Why Does Full GC Happen Frequently in the JVM? Common Scenarios and Fixes

Full GC pauses all application threads and degrades performance; this article explains frequent Full GC causes such as memory leaks, large object allocation, old‑generation and metaspace shortages, and mis‑configured JVM parameters, and provides concrete detection tools and optimization strategies for each garbage collector.

Full GCGC TuningGarbage Collection
0 likes · 8 min read
Why Does Full GC Happen Frequently in the JVM? Common Scenarios and Fixes
Programmer1970
Programmer1970
Jun 12, 2025 · Backend Development

Understanding Spring's Transaction Management: PlatformTransactionManager and TransactionSynchronizationManager

The article explains how Spring's PlatformTransactionManager and TransactionSynchronizationManager work together to provide both declarative and programmatic transaction management, detailing their core responsibilities, lifecycle handling, synchronization callbacks, practical use cases, and common troubleshooting steps.

JavaPlatformTransactionManagerSpring
0 likes · 8 min read
Understanding Spring's Transaction Management: PlatformTransactionManager and TransactionSynchronizationManager