Cloudera Engineering Blog · Hadoop Posts

Getting Started with Big Data Architecture

What does a “Big Data engineer” do, and what does “Big Data architecture” look like? In this post, you’ll get answers to both questions.

Apache Hadoop has come a long way in its relatively short lifespan. From its beginnings as a reliable storage pool with integrated batch processing using the scalable, parallelizable (though inherently sequential) MapReduce framework, we have witnessed the recent additions of real-time (interactive) components like Impala for interactive SQL queries and integration with Apache Solr as a search engine for free-form text exploration.

What’s Next for Impala: Focus on Advanced SQL Functionality

Impala 2.0 will add much more complete SQL functionality to what is already the fastest SQL-on-Hadoop solution available.

In September 2013, we provided a roadmap for Impala — the open source MPP SQL query engine for Apache Hadoop, which was on release 1.1 at the time — that documented planned functionality through release 2.0 and beyond.

Big Data Benchmarks: Toward Real-Life Use Cases

The Transaction Processing Council (TPC), working with Cloudera, recently announced the new TPCx-HS benchmark, a good first step toward providing a Big Data benchmark.

In this interview by Roberto Zicari with Francois Raab, the original author of the TPC-C Benchmark, and Yanpei Chen, a Performance Engineer at Cloudera, the interviewees share their thoughts on the next step for benchmarks that reflect real-world use cases.

Apache Hadoop 2.5.0 is Released

The Apache Hadoop community has voted to release Apache Hadoop 2.5.0.

Apache Hadoop 2.5.0 is a minor release in the 2.x release line and includes some major features and improvements, including:

New in CDH 5.1: HDFS Read Caching

Applications using HDFS, such as Impala, will be able to read data up to 59x faster thanks to this new feature.

Server memory capacity and bandwidth have increased dramatically over the last few years. Beefier servers make in-memory computation quite attractive, since a lot of interesting data sets can fit into cluster memory, and memory is orders of magnitude faster than disk.

Progress Report: Cloudera Community Forums After One Year

Cloudera Community forums are proving their value as an important contributor to a rich user experience.

It’s been almost exactly one year since the debut of the Cloudera Community forums. In addition to doing the birthday shout-out, I thought it would be interesting to bring you up to date about adoption and usage patterns.

New in Cloudera Manager 5.1: Direct Active Directory Integration for Kerberos Authentication

With this new release, setting up a separate MIT KDC for cluster authentication services is no longer necessary.

Kerberos (initially developed by MIT in the 1980s) has been adopted by every major component of the Apache Hadoop ecosystem. Consequently, Kerberos has become an integral part of the security infrastructure for the enterprise data hub (EDH).

Cloudera Enterprise 5.1 is Now Available

Cloudera Enterprise’s newest release contains important new security and performance features, and offers support for the latest innovations in the open source platform.

We’re pleased to announce the release of Cloudera Enterprise 5.1 (comprising CDH 5.1, Cloudera Manager 5.1, and Cloudera Navigator 2.0).

Jay Kreps, Apache Kafka Architect, Visits Cloudera

It was good to see Jay Kreps (@jaykreps), the LinkedIn engineer who is the tech lead for that company’s online data infrastructure, visit Cloudera Engineering yesterday to spread the good word about Apache Kafka.

Kafka, of course, was originally developed inside LinkedIn and entered the Apache Incubator in 2011. Today, it is being widely adopted as a pub/sub framework that works at massive scale (and which is commonly used to write to Apache Hadoop clusters, and even data warehouses).

The New Hadoop Application Architectures Book is Here!

There’s an important new addition coming to the Apache Hadoop book ecosystem. It’s now in early release!

We are very happy to announce that the new Apache Hadoop book we have been writing for O’Reilly Media, Hadoop Application Architectures, is now available as an early release! It contains the first two chapters and can be found in O’Reilly’s Catalog and via Safari.        

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