Author's articles
May 26, 2025
Displaying fields in an Elasticsearch index
Exploring techniques for displaying fields in an Elasticsearch index.
May 16, 2025
How to optimize Elasticsearch disk space and usage
Learn how to prevent and handle cases when the Elasticsearch disk is too full (overutilization) and when the disk capacity is underutilized to optimize cluster costs.
May 14, 2025
How to configure the number of replicas in an Elasticsearch index
Learn how to configure the number_of_replicas in an Elasticsearch index to improve search performance and provide resilience to node failure.
May 12, 2025
Excluding Elasticsearch fields from indexing
Learn how to configure Elasticsearch to exclude fields, the main reasons for excluding fields from indexing, and best practices to follow.
May 9, 2025
Deleting a field from a document in Elasticsearch
Learn how to delete fields from Elasticsearch documents using the Update API, scripts, or reindexing for single and bulk removals.
May 5, 2025
Understanding Elasticsearch scoring and the Explain API
Learn about Elasticsearch scoring mechanisms and the practical scoring function to audit search relevance and improve document ranking with the Explain API.
May 2, 2025
Index templating in Elasticsearch: How to use composable templates
Explore how to create composable and component index templates in Elasticsearch to ensure consistent mappings and automate index configuration.
Elasticsearch search by two fields
Explore techniques for searching by two fields, including multi-match queries, bool queries, and query-time field boosting.
April 22, 2025
Elasticsearch heap size usage and JVM garbage collection
Exploring Elasticsearch heap size usage and JVM garbage collection, including best practices and how to resolve issues when heap memory usage is too high or when JVM performance is not optimal.
April 17, 2025
How to increase primary shard count in Elasticsearch
Learn how to increase primary shard count in Elasticsearch using the split and reindex APIs for optimal shard scaling.
April 14, 2025
How to migrate data between different versions of Elasticsearch & between clusters
Exploring methods for transferring data between Elasticsearch versions and clusters.