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Tugdual Grall
Technical Evangelist, MapR
Technical Evangelist @MapR Hadoop/NoSQL | @nantesjug leader | Slow Triathlete @resultri

Author's Posts

Posted on November 3, 2016 by Tugdual Grall

Apache Spark can use various cluster managers to execute applications (such as Standalone, YARN, and Apache Mesos). When you install Apache Spark on MapR, you can submit an application in a Stand Alone mode or by using YARN.

This article focuses on YARN and dynamic allocation, a feature that lets Spark add or remove executors dynamically based on the workload.

Posted on October 19, 2016 by Tugdual Grall

Druid is a high-performance, column-oriented, distributed data store. Druid supports streaming data ingestion and offers insights on events immediately after they occur. Druid can ingest data from multiple data sources, including Apache Kafka.

Posted on October 13, 2016 by Tugdual Grall

This article will guide you into the steps to use Apache Flink with MapR Streams. MapR Streams is a distributed messaging system for streaming event data at scale, and it’s integrated into the MapR Converged Data Platform, based on the Apache Kafka API (0.9.0)

Posted on September 26, 2016 by Tugdual Grall

Get an introduction to streaming analytics, which allows you real-time insight from captured events and big data. There are applications across industries, from finance to wine making, though there are two primary challenges to be addressed.

Posted on March 10, 2016 by Tugdual Grall

MapR Streams is a new distributed messaging system for streaming event data at scale, and it’s integrated into the MapR converged platform. MapR Streams uses the Apache Kafka API, so if you’re already familiar with Kafka, you’ll find it particularly easy to get started with MapR Streams.

Posted on February 23, 2016 by Tugdual Grall

We live in a world where the combination of Moore’s Law and Metcalfe’s Law heralds a data revolution. The billions of smartphone and broadband users today already generate massive quantities of data.

Posted on February 9, 2016 by Tugdual Grall

Streaming data is of growing interest to many organizations, and most applications need to use a producer-consumer model to ingest and process data in real time. Many messaging solutions exist today on the market, but few of them have been built to handle the challenges of modern deployment related to IoT, large web based applications and related big data projects.

Posted on January 27, 2016 by Tugdual Grall

In this week's whiteboard walkthrough, Tugdual Grall, technical evangelist at MapR, explains the advantages of a publish-subscribe model for real-time data streams.

Posted on December 22, 2015 by Tugdual Grall

Apache Drill has a hidden gem: an easy to use REST interface. This API can be used to Query, Profile and Configure Drill engine.

Posted on September 29, 2015 by Tugdual Grall

Today, MapR has announced the developer preview of MapR-DB with native support of JSON, and the new library OJAI (Open JSON Application Interface), pronounced "OH-hy."

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