Martijn Van Groningen
Principal Software Engineer II

Query rewrite rules in Elasticsearch: 2.3x faster wildcard scans
A second rule makes empty-string filters 1.6x faster. It reads string lengths straight from the offset array and never touches the compressed bytes. Both rules came from the same habit of running real queries and hunting for the special case.

30x faster than Prometheus: How we rebuilt Elasticsearch as a leading columnar metrics datastore
Elasticsearch now stores OTel metrics at 3.75 bytes per data point and queries them up to 30x faster than Prometheus. Here's how we rebuilt TSDS and ES|QL.

LogsDB and TSDS performance and storage improvements in Elasticsearch 8.19.0 and 9.1.0
Exploring the latest enhancements to TSDS and LogsDB, including optimizing I/O, improving merge performance, and more.

