Druid

Essential questions about Time Series

Today, the bulk of Big Data is temporal. We see it in the media and among our customers: smart meters, banking transactions, smart factories, connected vehicles … IoT and Big Data go hand in hand. […]

By |2018-06-05T22:36:40+00:00March 19th, 2018|Categories: Big Data, Data Engineering|Tags: , , , , , |0 Comments

Hive, Calcite and Druid

BI/OLAP requires interactive visualization of complex data streams: Real time bidding events User activity streams Voice call logs Network trafic flows Firewall events Application KPIs Traditionnal solutions RDBMS (Mysql..): don't scale, need caching but adhoc queries remain slow Key/value store (HBase...): quick but takes forever to compute (pre-materialization of data) Context Created in 2011, open-sourced [...]

By |2019-06-21T22:05:23+00:00July 14th, 2016|Categories: Big Data|Tags: , , , , |0 Comments