Author: Valentin Nikotin

It’s well known that mmap helps to improve performance in particular use-cases (especially if your working set fits an available memory). This doesn’t mean that the file itself has to fit memory. mmaps provides real benefits over the other IO…

Valentin Nikotin explains why triggers in Cloudera Manager is a very useful feature, as well as how you can set them up to monitor tons of available metrics using tsquery language.

In Part 1 of this series, Valentin Nikotin, will teach you about migrating from RDBMS to Hive, while maintaining the simplicity and flexibility of a SQL approach.