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CodaLab – Data Science competitions

CodaLab – Data Science competitions

Categories: Data Science, Adaltas Summit 2018, Learning | Tags: Database, Infrastructure, Machine Learning, MySQL, Node.js, Python

CodaLab Competition is a platform for code execution in the field of Data Science. It is a web interface on which a user can submit code or results and compare themselves to others. Let’s see how it…

By Robert Walid SOARES

Dec 17, 2018

Yahoo's Vespa Engine

Yahoo's Vespa Engine

Categories: Tech Radar | Tags: Database, Elasticsearch, Search Engine, Tools

Vespa is Yahoo’s fully autonomous and self-sufficient big data processing and serving engine. It aims at serving results of queries on huge amounts of data in real time. An example of this would be…

By Arthur BUSSER

Oct 16, 2017

MariaDB integration with Hadoop

MariaDB integration with Hadoop

Categories: Infrastructure | Tags: Hive, Database, HA, MariaDB, Hadoop

During a workshop with one of our customers, Adaltas has identified a potential risk to use MariaDB’s High Availability (HA) strategy. Since the customer selected Cloudera’s CDH 5 distribution, the…

By David WORMS

Jul 31, 2017

Managing authorizations with Apache Sentry

Managing authorizations with Apache Sentry

Categories: Data Governance | Tags: Ansible, CDH, Hue, Database, Deployment, LDAP, Nikita, Sentry

Apache Sentry is a system for enforcing fine grained role based authorization to data and metadata stored on a Hadoop cluster. With this article, we will show you how we are using Apache Sentry at…

By Axel JACQIN

Jul 24, 2017

Hive, Calcite and Druid

Hive, Calcite and Druid

Categories: Big Data | Tags: Analytics, Druid, Hive, Database, Hadoop

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…

By David WORMS

Jul 14, 2016

Testing the Oracle SQL Connector for Hadoop HDFS

Testing the Oracle SQL Connector for Hadoop HDFS

Categories: Data Engineering | Tags: HDFS, CDH, Database, File system, Oracle, SQL

Using Oracle SQL Connector for HDFS, you can use Oracle Database to access and analyze data residing in HDFS files or a Hive table. You can also query and join data in HDFS or a Hive table with other…

By David WORMS

Jul 15, 2013

Options to connect and integrate Hadoop with Oracle

Options to connect and integrate Hadoop with Oracle

Categories: Data Engineering | Tags: Avro, HDFS, Hive, MapReduce, Sqoop, Database, Java, NoSQL, Oracle, R, RDBMS, SQL

I will list the different tools and libraries available to us developers in order to integrate Oracle and Hadoop. The Oracle SQL Connector for HDFS described below is covered in a follow up article…

By David WORMS

May 15, 2013

Installing and using MADlib with PostgreSQL on OSX

Installing and using MADlib with PostgreSQL on OSX

Categories: Data Science | Tags: Database, Greenplum, Statistics, PostgreSQL, SQL

We cover basic installation and usage of PostgreSQL and MADlib on OSX and Ubuntu. Instructions for other environments should be similar. PostgreSQL is an Open Source database with enterprise…

By David WORMS

Jul 7, 2012

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