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From the Dev Team

Our customers have many choices of infrastructure to deploy HDP: on premise, cloud, virtualized and even as an appliance. Further, our customers have a choice of deploying on Linux and Windows operating systems. You can easily see this creates a complex matrix. At Hortonworks, we believe you should not be limited to just one option […]

It gives me great pleasure to announce that the Apache Hadoop community has released Apache Hadoop 2.6.0 ! In particular, we are excited about three major pieces in this release: heterogeneous storage in HDFS with SSD & Memory tiers, support for long-running services in YARN and rolling upgrades—the ability to upgrade your cluster software and […]

With YARN as its architectural center, Apache Hadoop continues to attract new engines to run within the data platform, as organizations want to efficiently store their data in a single repository and interact with it simultaneously in different ways. Apache Tez supports YARN-based, high performance batch and interactive data processing applications in Hadoop that need […]

While YARN has allowed new engines to emerge for Hadoop, the most popular integration point with Hadoop continues to be SQL and Apache Hive is still the defacto standard. Although many SQL engines for Hadoop have emerged, their differentiation is being rendered obsolete as the open source community surrounds and advances this key engine at […]

A Cosmopolitan Metropolis Brussels, Belgium, conjures images of a cosmopolitan metropolis, where geopolitical summits are held, where world economic forums are debated, where global European institutions are headquartered, and where citizens and diplomats fluently converse in more than three languages—English, French, Dutch or German, along with other non-official local flavors. To this colorful collage, add […]

Two weeks ago Hortonworks presented the third in series of 8 Discover HDP 2.2 webinars: Discover HDP 2.2: Discover HDP 2.2: Apache Falcon for Hadoop Data Governance. Andrew Ahn, Venkatesh Seetharam, and Justin Sears hosted this 3rd webinar in the series. After Justin Sears set the stage for the webinar by explaining the drivers behind […]

Introduction With the rapid adoption of Apache Hadoop, enterprises use machine learning as a key technology to extract tangible business value from their massive data assets. This derivation of business value is possible because Apache Hadoop YARN as the architectural center of Modern Data Architecture (MDA) allows purpose-built data engines such as Apache Tez and […]

Last week Hortonworks presented the second of our eight Discover HDP 2.2 webinars. Alan Gates and Raj Bains discussed the Stinger.next initiative and new Apache Hive features for speed, scale and SQL that are included in Hortonworks Data Platform 2.2. After an overview of HDP 2.2, Alan discussed what the Apache community accomplished with the […]

Last week Hortonworks presented the first of 8 Discover HDP 2.2 webinars: Comprehensive Hadoop Security with Apache Ranger and Apache Knox. Vinay Shukla and Balaji Ganesan hosted this first webinar in the series. Balaji discussed how to use Apache Ranger (for centralized security administration, to set up authorization policies, and to monitor user activity with […]

We recently hosted a Spark webinar as part of the YARN Ready series, aimed at a technical audience including developers of applications for Apache Hadoop and Apache Hadoop YARN. During the event, a number of good questions surfaced that we wanted to share with our broader audience in this blog. Take a look at the […]

Merv Adrian, the widely respected Gartner analyst, recently remarked on the continuing evolution of Apache Hadoop: YARN is the one that really matters because it doesn’t just mean the list of components will change, but because in its wake the list of components will change Hadoop’s meaning. YARN enables Hadoop to be more than a […]

HDFS metadata represents the structure of HDFS directories and files in a tree. It also includes the various attributes of directories and files, such as ownership, permissions, quotas, and replication factor. In this blog post, I’ll describe how HDFS persists its metadata in Hadoop 2 by exploring the underlying local storage directories and files. All […]

Enterprise Apache Hadoop provides the fundamental data services required to deploy into existing architectures. These include security, governance and operations services, in addition to Hadoop’s original core capabilities for data management and data access. This post focuses on recent work completed in the open source community to enhance the Hadoop security component, with encryption and […]

Introduction Hortonworks University announces a new operationally focused course for Apache Hadoop administrators. This two-day training course is designed for Hadoop administrators who are familiar with administering other Hadoop distributions and are migrating to the Hortonworks Data Platform (HDP). Through a combination of lecture and hands-on exercises you will learn how to install, configure, maintain […]

Since its first deployment at Yahoo in 2006, HDFS has established itself as the defacto scalable, reliable and robust file system for Big Data. It has addressed several fundamental problems of distributed storage at unparalleled scales and with enterprise grade robustness. As more and more enterprises adopt Apache Hadoop, it is becoming a unified central […]