Tag: performance

Feed: Cloudera Engineering Blog » Hadoop. Author: Alex Kozlov. Fraud has multiple meanings and the term can be easily abused.  The definition of fraud has undergone multiple changes throughout the years and is elusive as well as fraud itself.  The modern legal definition of fraud usually contains a few elements that have to be proven in court and depends on the state/country.  For example, in California, the elements of fraud, which give rise to the fraud cause of action in the California Courts, are: (a) misrepresentation (false representation, concealment, or nondisclosure); (b) knowledge of falsity (or scienter); (c) intent to ... Read More

Feed: Cloudera Engineering Blog » Hadoop. Author: John Kreisa. This post was contributed by Jonathan Seidman from Orbitz. Jonathan is a Lead Engineer on the Intelligent Marketplace/Machine Learning team at Orbitz Worldwide . You can hear more from Jonathan at Hadoop World October 12th in NYC. Orbitz Worldwide (NYSE:OWW) is composed of a global portfolio of online consumer travel brands including Orbitz, Cheaptickets, The Away Network, ebookers and HotelClub, Additionally, the company operates business-to-business service: Orbitz Worldwide Distribution provides third parties such as Amtrak, Delta, LAN, KLM, Air France and a number of other leading airlines hotel booking capabilities, and Orbitz for ... Read More

Feed: Cloudera Engineering Blog » Hadoop. Author: Jon Zuanich. Our vision for Hadoop World is a conference where both newcomers and experienced Hadoop users can learn and be part of the growing Hadoop community. We are also offering training sessions for newcomers and experienced Hadoop users alike. Whether you are looking for an Introduction to Hadoop, Hadoop Certification, or you want to learn more about related Hadoop projects we have the training you are looking for. Included with our top-notch Hadoop training you will have full access to Hadoop World free of charge. Available Training Sessions include: Oct 11: Introduction ... Read More

Feed: Cloudera Engineering Blog » Hadoop. Author: Alex Kozlov. Apache Hadoop and Apache HBase are gaining popularity due to their flexibility and tremendous work that has been done to simplify their installation and use.  This blog is to provide guidance in sizing your first Hadoop/HBase cluster.  First, there are significant differences in Hadoop and HBase usage.  Hadoop MapReduce is primarily an analytic tool to run analytic and data extraction queries over all of your data, or at least a significant portion of them (data is a plural of datum).  HBase is much better for real-time read/write/modify access to tabular data.  Both ... Read More

Feed: Cloudera Engineering Blog » Hadoop. Author: John Kreisa. Cloudera is pleased to announce two new training courses: a one-day Introduction to HBase and a two-day session on Analyzing Data with Hive and Pig. These join a recently-expanded two-day Hadoop for Administrators course and our popular three-day Hadoop for Developers offering, any of which can be combined to provide extensive, customized training for your organization. Please contact sales@cloudera.com for more information regarding on-site training, or visit www.cloudera.com/hadoop-training to view our public course schedule. Cloudera’s HBase course discusses use-cases for HBase, and covers the HBase architecture, schema modeling, access patterns, and ... Read More

Feed: Cloudera Engineering Blog » Hadoop. Author: Aaron Kimball. Cloudera customers usually have two major sources of data: log files, which can be imported to Hadoop via Flume, and relational databases. Throughout the previous releases of CDH2 and CDH3, Cloudera has included a package we’ve developed called Sqoop. Sqoop can perform batch imports and exports between relational databases and Hadoop, storing data in HDFS and creating Hive tables to hold results. We described its motivation and some use cases in a previous blog post a while ago. In CDH3b2, we’ve included a greatly-expanded version of Sqoop which has had a ... Read More

Feed: Cloudera Engineering Blog » Hadoop. Author: Eli Collins. While the vast majority of the Hadoop development discussion takes place on the Apache Jira and various project mailing lists, it’s often useful to meet face to face for high bandwidth discussion. To that end, Facebook hosted the first Apache Hadoop contributors meeting yesterday at their campus in Palo Alto. Cloudera, Facebook, Yahoo! and the Apache HBase team were well-represented. It was great to see a broad cross section of Hadoop developers in one room. Contributor meetings will be held on a monthly basis, at a rotating location. While any Hadoop ... Read More

Feed: Cloudera Engineering Blog » Hadoop. Author: Eli Collins. It’s official – Cloudera’s Distribution for Hadoop Version 2, which we often shorthand as CDH2, has been released. CDH2 is the product we recommend to our current production customers. It’s a stable version that has undergone a long cycle of time in the field with a variety of customers, in addition to Cloudera’s internal QA process. And with the CDH2 release, the Cloudera engineering team is excited to start the feedback and development process for the next version of Cloudera’s Distribution for Hadoop – Version 3. CDH3 includes an Apache Pig package ... Read More

Feed: Cloudera Engineering Blog » Hadoop. Author: Christophe Bisciglia. It’s been over a year now since we started offering Hadoop training in the Bay Area, and since then, we’ve put many of our introductory materials online (for free), and offer in-person public classes in cities around the US (click here for a full list of sessions). The response has been incredible, but one thing is painfully obvious: we’re not doing enough to meet the needs of the growing world-wide Apache Hadoop community. To that end, we’ve made investments in translating translating our materials into new languages and thinking about how ... Read More

Feed: Cloudera Engineering Blog » Hadoop. Author: Chad Metcalf. One of the more common requests we receive from the community is to package Apache HBase with Cloudera’s Distribution for Apache Hadoop. Lately, I’ve been doing a lot of work on making Cloudera’s packages easy to use, and recently, the HBase team has pitched in to help us deliver compatible HBase packages. We’re pretty excited about this, and we’re looking forward to your feedback. A big thanks to Andrew Purtell, a Senior Architect at TrendMicro and HBase Contributor, for leading this packaging project and providing this guest blog post. -Chad Metcalf ... Read More