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Course Outline

1. Introduction to Distributed PostgreSQL

  • Challenges associated with scaling single-node PostgreSQL installations
  • Overview of the Citus extension: its purpose, architecture, and core components
  • Essential concepts: coordinator nodes, worker nodes, metadata, and distribution keys

2. Cluster Architecture and Setup

  • Distinctions between node types: coordinator versus workers
  • Types of tables: distributed, replicated, and local
  • Installing and configuring Citus within existing PostgreSQL environments
  • Cluster discovery processes and node management techniques

3. Data Distribution and Sharding Strategies

  • Sharding methodologies: hash-based versus append-based approaches
  • Choosing the right distribution column for optimal performance
  • Managing distributed and replicated tables effectively
  • Re-balancing shards and scaling out the cluster

4. Distributed Query Execution and Optimisation

  • Mechanisms by which Citus routes and parallelises queries
  • Interpreting distributed query plans
  • Query pushdown techniques and execution optimisation

5. Consistency, Transactions and Fault Tolerance

  • Two-Phase Commit (2PC) and atomic operations
  • Strategies for handling failures within distributed transactions

6. Operational Management and Use Cases

  • Monitoring tools and views specific to Citus
  • Maintenance procedures and upgrades in distributed environments

Requirements

  • Completion of the Advanced Administration (High Availability & Replication) course or equivalent professional experience
  • Strong understanding of PostgreSQL configuration and performance tuning
  • Familiarity with Linux operating systems and fundamental network concepts

Audience

This course is designed for experienced Database Administrators, DevOps Engineers, and System Architects who currently manage production PostgreSQL environments and seek to scale them horizontally.

 7 Hours

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