Index

Archives

All published Druid notes in reverse chronological order.

2021-08-15

Speed Up Query Execution Using Vectorization

Vectorized execution in Apache Druid processes row batches instead of single rows, reducing method-call overhead and improving CPU/cache efficiency.

GroupByTimeseriesVectorizeDruid 0.20.2
 2021-08-15

Auto Scaler Kafka Ingestion Tasks

A short reference note for dynamic auto-scaling of Kafka stream ingestion tasks in Apache Druid.

KafkaIngestionAutoscalingDruid