elasticsearch

Best Practices

• Define explicit field mappings instead of relying on dynamic mapping
• Set appropriate shard and replica counts based on data volume
• Use index lifecycle management (ILM) policies for log rotation
• Configure refresh intervals based on indexing vs search priority
• Use keyword type for exact-match fields, text for full-text search
• Set date format explicitly for timestamp fields
• Use index aliases for zero-downtime reindexing
• Always define explicit mappings for known fields
• Use keyword type for fields used in aggregations and filtering
• Set appropriate shard count based on expected data volume
• Include @timestamp field with date type for time-series data
• Use ILM policies for automatic index lifecycle management

Documentation Sources