Elasticsearch configuration reference

Configuration settings enable you to customize the behavior of Elasticsearch features.
This reference provides details about each setting, such as its purpose, default behavior, and availability in Elastic Cloud environments.

The settings are grouped by feature or purpose, for example:

• Auditing
• Circuit breaker
• Cluster formation and discovery
• Cross-cluster replication
• Data stream lifecycle
• Field data cache
• Health diagnostic
• Index lifecycle management,
• Index management
• Index recovery
• Index buffer
• Inference
• License
• Local gateway
• Machine learning
• Monitoring
• Networking
• Nodes
• Node query cache
• Search
• Security
• Shard request cache
• Shard routing
• Snapshot and restore
• Transforms
• Thread pools
• Watcher