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Aikesheng Open Source Community
Aikesheng Open Source Community
Dec 10, 2024 · Databases

Random Data Source Selection Issue When Adding Replicas in OceanBase 4.2.1.4 and Its Solutions

An OceanBase 4.2.1.4 deployment experienced random selection of data sources when adding tenant replicas, causing cross‑city bandwidth congestion; the article reproduces the issue, analyzes its cause, and presents three remediation methods—including setting the choose_migration_source_policy parameter, manual replica addition, and temporary network isolation.

DataMigrationDatabaseConfigurationDisasterRecovery
0 likes · 9 min read
Random Data Source Selection Issue When Adding Replicas in OceanBase 4.2.1.4 and Its Solutions
Top Architect
Top Architect
Dec 12, 2021 · Databases

Elasticsearch Cluster and Data Layer Architecture Overview

This article explains Elasticsearch’s cluster and data layer architecture, covering nodes, indices, shards, replicas, mixed and tiered deployment models, storage options, and the trade‑offs of different distributed system designs for scalable systems.

Cluster ArchitectureElasticsearchReplica
0 likes · 14 min read
Elasticsearch Cluster and Data Layer Architecture Overview
Architecture Digest
Architecture Digest
Nov 11, 2021 · Databases

Elasticsearch Cluster Architecture and Distributed Data System Design Overview

This article explains the core concepts of Elasticsearch—including nodes, indices, shards, and replicas—covers its cluster and data‑layer architectures, compares mixed and tiered deployment models, and discusses the advantages and drawbacks of replica‑based distributed storage systems.

Cluster ArchitectureElasticsearchReplica
0 likes · 15 min read
Elasticsearch Cluster Architecture and Distributed Data System Design Overview
Top Architect
Top Architect
Sep 21, 2021 · Databases

Elasticsearch Cluster Architecture and Deployment Strategies

This article explains Elasticsearch's core concepts—nodes, indices, shards, and replicas—describes the indexing flow, compares mixed and layered deployment models, and discusses data‑layer architectures, helping readers choose the appropriate cluster design for reliability and scalability.

Cluster DeploymentElasticsearchReplica
0 likes · 13 min read
Elasticsearch Cluster Architecture and Deployment Strategies
Tencent Cloud Developer
Tencent Cloud Developer
Nov 19, 2020 · Backend Development

Kafka Message Queue Reliability Design and Implementation

The article thoroughly explains Kafka’s message‑queue reliability design and implementation, covering use‑case scenarios, core concepts, storage format, producer acknowledgment settings, broker replication mechanisms (ISR, HW, LEO), consumer delivery semantics, the epoch solution for synchronization, and practical configuration guidelines for various consistency and availability requirements.

BrokerConsumerKafka
0 likes · 15 min read
Kafka Message Queue Reliability Design and Implementation
Architecture Digest
Architecture Digest
Oct 1, 2020 · Big Data

Elasticsearch Overview: Architecture, Core Concepts, and Performance Optimization

This article provides a comprehensive introduction to Elasticsearch, covering data types, the role of Lucene, cluster architecture, node roles, discovery mechanisms, shard and replica management, mapping, installation, health monitoring, indexing workflow, storage internals, refresh and translog processes, segment merging, and practical performance and JVM tuning tips.

ElasticsearchInverted IndexReplica
0 likes · 35 min read
Elasticsearch Overview: Architecture, Core Concepts, and Performance Optimization
Art of Distributed System Architecture Design
Art of Distributed System Architecture Design
Jun 29, 2020 · Databases

Understanding Elasticsearch Cluster and Data Layer Architecture

This article explains Elasticsearch’s cluster and data layer architecture, detailing nodes, indices, shards, replicas, deployment models, and the trade‑offs of different distributed system designs, helping readers understand how Elasticsearch achieves scalability, reliability, and query performance.

ElasticsearchReplicaSearch Engine
0 likes · 15 min read
Understanding Elasticsearch Cluster and Data Layer Architecture