Author’s articles
April 30, 2025
Elasticsearch search by two fields
Exploring 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
Exploring methods for increasing primary shard count in Elasticsearch.
April 14, 2025
How to migrate data between different versions of Elasticsearch & between clusters
Exploring methods for transferring data between Elasticsearch versions and clusters.