Our journey began back in the 7.x series where we noticed that doing ad-hoc aggregations on raw transaction data put Elasticsearch® under a lot of pressure in large-scale environments. Since then, we’ve begun to pre-aggregate the transactions into transaction metrics during ingestion. This has helped to keep the performance of the UI relatively stable. Regardless of how busy … [Read more...] about Improving the Elastic APM UI performance with continuous rollups and service metrics