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Tencent Cloud Middleware

Official account of Tencent Cloud Middleware. Focuses on microservices, messaging middleware and other cloud‑native technology trends, publishing product updates, case studies, and technical insights. Regularly hosts tech salons to share effective solutions.

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Latest from Tencent Cloud Middleware

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Tencent Cloud Middleware

Nov 15, 2023 · Big Data

Optimizing Apache Pulsar for MySQL Binlog Ingestion and Sorting in Apache InLong

This article explains how Apache Pulsar is used within Apache InLong to collect, sort, and reliably deliver massive MySQL binlog incremental data, covering component architecture, job isolation, client and producer management, consumption strategies, common pitfalls, performance tuning, and practical code examples.

Apache PulsarBinlogData Ingestion

0 likes · 21 min read

Optimizing Apache Pulsar for MySQL Binlog Ingestion and Sorting in Apache InLong

Tencent Cloud Middleware

Sep 14, 2023 · Backend Development

How Tencent Cloud’s Unitized Architecture Boosts Microservice Scalability and High Availability

This article explains the concept of unitized architecture, its characteristics and types, the performance and reliability challenges it solves for large‑scale microservice systems, and how Tencent Cloud’s TSF platform implements unit routing, gray release, and disaster‑recovery to achieve efficient, cross‑region, high‑availability deployments.

Tencent Cloudcloud-nativehigh-availability

0 likes · 15 min read

How Tencent Cloud’s Unitized Architecture Boosts Microservice Scalability and High Availability

Tencent Cloud Middleware

Jul 26, 2023 · Backend Development

Mastering Message Redelivery in Apache Pulsar: Strategies and Code Samples

This article explains Apache Pulsar's message redelivery mechanisms—including consumer flow, AckTimeout, NegativeAck, retry queues (RLQ), and dead‑letter queues (DLQ)—and provides concrete code examples for configuring each approach in Java clients.

AckTimeoutApache PulsarDLQ

0 likes · 9 min read

Mastering Message Redelivery in Apache Pulsar: Strategies and Code Samples

Tencent Cloud Middleware

Jul 21, 2023 · Backend Development

How Pulsar GEO Replication Keeps Subscription State in Sync Across Clusters

This article explains how Apache Pulsar's GEO Replication synchronizes subscription state between primary and backup clusters, detailing the challenges of ledger mismatches, the two‑step mapping process for MessageIds, and the mechanisms that ensure seamless failover without duplicate consumption.

Apache PulsarDistributed MessagingGEO Replication

0 likes · 8 min read

How Pulsar GEO Replication Keeps Subscription State in Sync Across Clusters

Tencent Cloud Middleware

Jul 20, 2023 · Operations

Why CKafka Cross‑Region Sync Stalled at 64KB/s: TCP Window Scaling & Kernel Tuning

This article details a real‑world investigation of severe latency in CKafka cross‑region data synchronization, tracing the issue from high message backlog through network bandwidth tests, kernel parameter adjustments, and finally uncovering a TCP window‑scaling failure caused by SYN‑cookie protection and missing timestamp options.

CKafkaCross-Region SyncKafka

0 likes · 15 min read

Why CKafka Cross‑Region Sync Stalled at 64KB/s: TCP Window Scaling & Kernel Tuning

Tencent Cloud Middleware

Jul 12, 2023 · Operations

How to Achieve Graceful Startup and Shutdown for Microservices with Spring Cloud, Polaris, and Docker

This article explains the principles and practical steps for implementing graceful startup and shutdown in microservices, covering service pre‑warming, registration strategies, Spring Cloud and Polaris demos, Docker container handling, and the benefits and challenges of lossless service lifecycle management.

Dockergraceful shutdownservice discovery

0 likes · 20 min read

How to Achieve Graceful Startup and Shutdown for Microservices with Spring Cloud, Polaris, and Docker

Tencent Cloud Middleware

Apr 25, 2023 · Big Data

How to Achieve High Availability for Kafka Across Data Centers: Architectures, Trade‑offs, and Solutions

This article explains Kafka's cross‑data‑center high‑availability options, compares stretched and connected cluster designs, outlines typical failure scenarios, and reviews both community and commercial replication solutions, helping architects choose the most suitable deployment for their specific requirements.

Connected ClusterCross‑Data‑CenterHigh Availability

0 likes · 24 min read

How to Achieve High Availability for Kafka Across Data Centers: Architectures, Trade‑offs, and Solutions

Tencent Cloud Middleware

Apr 13, 2023 · Fundamentals

RocketMQ, Kafka, Pulsar: Core Concepts, Architecture & Transactional Messaging

This article provides a comprehensive overview of major message‑queue middleware—including RocketMQ, Kafka, Pulsar, and RabbitMQ—covering fundamental concepts such as tags, groups, offsets, architectural components, storage mechanisms, transaction workflows, rebalance strategies, and recent developments, while comparing their features and performance characteristics.

ArchitectureKafkaPulsar

0 likes · 19 min read

RocketMQ, Kafka, Pulsar: Core Concepts, Architecture & Transactional Messaging

Tencent Cloud Middleware

Apr 4, 2023 · Backend Development

Why Kafka’s High Reliability and Performance Matter for Asynchronous Decoupling and Load Smoothing

This article explains Kafka’s core concepts, architecture, and the mechanisms—such as ACK policies, replication, HW/LEO management, zero‑copy I/O, batching, compression, and load‑balancing—that together ensure high reliability and high throughput for asynchronous decoupling and peak‑shaving scenarios.

High reliabilityKafkaasynchronous decoupling

0 likes · 33 min read

Why Kafka’s High Reliability and Performance Matter for Asynchronous Decoupling and Load Smoothing

Tencent Cloud Middleware

Mar 29, 2023 · Cloud Native

How a Hong Kong Virtual Bank Scaled Core Services with Polaris Service Mesh

This article details how FuRong Bank tackled integration, protocol heterogeneity, and disaster‑recovery challenges in its core banking platform by adopting Tencent's Polaris service‑mesh, unifying Spring Cloud Tencent, Polaris Java SDK, and gateway solutions to achieve seamless, resilient, and cloud‑native operations.

Cloud Nativebankingmicroservices

0 likes · 9 min read

How a Hong Kong Virtual Bank Scaled Core Services with Polaris Service Mesh