Key Concepts for HA in Elasticsearch
- Replication: Elasticsearch allows you to create multiple copies of your data, called replica shards, which can be distributed across different nodes.
- Cluster Setup: A typical high-availability setup includes multiple master-eligible nodes and data nodes spread across different availability zones.
- Automatic Failover: Elasticsearch can automatically detect node failures and reroute requests to healthy nodes.
High Availability and Disaster Recovery Strategies for Elasticsearch
Elasticsearch is a powerful distributed search and analytics engine, but to ensure its reliability in production, it’s crucial to implement high availability (HA) and disaster recovery (DR) strategies. These strategies help maintain service continuity and protect data integrity in the face of failures or disasters.
This article will guide you through the key concepts, strategies, and best practices for achieving high availability and disaster recovery in Elasticsearch, with detailed examples and outputs.